You must link an event in your onClick. Additionally, the click function must receive the event. See the example
export default function Component(props) {
function clickEvent (event, variable){
console.log(variable);
}
return (
<div>
<IconButton
key="close"
aria-label="Close"
color="inherit"
onClick={e => clickEvent(e, 10)}
>
</div>
)
}
You can solve it by using the useRef
hook but then it's will not re-render when it' updated. I have created a hooks called useStateRef, that give you the good from both worlds. It's like a state that when it's updated the Component re-render, and it's like a "ref" that always have the latest value.
See this example:
var [state,setState,ref]=useStateRef(0)
It works exactly like useState
but in addition, it gives you the current state under ref.current
Learn more:
Updating gradle to gradle:3.3.0
The default 'assemble' task only applies to normal variants. Add test variants as well.
android.testVariants.all { variant ->
tasks.getByName('assemble').dependsOn variant.getAssembleProvider()
}
also comment apply fabric
//apply plugin: 'io.fabric'
you just need to reset dependencies in app.gradle file like old one as
androidTestImplementation 'com.android.support.test:runner:0.5'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:2.2.2'
to new one as
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
If you don't really need the mechanism, just specify a random flavor dimension in your build.gradle
:
android {
...
flavorDimensions "default"
...
}
For more information, check the migration guide
Apart from the similarities i.e. Task.Run() being a shorthand for Task.Factory.StartNew(), there is a minute difference between their behaviour in case of sync and async delegates.
Suppose there are following two methods:
public async Task<int> GetIntAsync()
{
return Task.FromResult(1);
}
public int GetInt()
{
return 1;
}
Now consider the following code.
var sync1 = Task.Run(() => GetInt());
var sync2 = Task.Factory.StartNew(() => GetInt());
Here both sync1 and sync2 are of type Task<int>
However, difference comes in case of async methods.
var async1 = Task.Run(() => GetIntAsync());
var async2 = Task.Factory.StartNew(() => GetIntAsync());
In this scenario, async1 is of type Task<int>
, however async2 is of type Task<Task<int>>
I would like to provide another variant that should be both performant and powerful, because
Match
)String
, Integer
, Boolean
etc. (not String
-only)...
'-1 if not found
'https://stackoverflow.com/a/56327647/1915920
Public Function IsInArray( _
item As Variant, _
arr As Variant, _
Optional nthOccurrence As Long = 1 _
) As Long
IsInArray = -1
Dim i As Long: For i = LBound(arr, 1) To UBound(arr, 1)
If arr(i) = item Then
If nthOccurrence > 1 Then
nthOccurrence = nthOccurrence - 1
GoTo continue
End If
IsInArray = i
Exit Function
End If
continue:
Next i
End Function
use it like this:
Sub testInt()
Debug.Print IsInArray(2, Array(1, 2, 3)) '=> 1
End Sub
Sub testString1()
Debug.Print IsInArray("b", Array("a", "b", "c", "a")) '=> 1
End Sub
Sub testString2()
Debug.Print IsInArray("b", Array("a", "b", "c", "b"), 2) '=> 3
End Sub
Sub testBool1()
Debug.Print IsInArray(False, Array(True, False, True)) '=> 1
End Sub
Sub testBool2()
Debug.Print IsInArray(True, Array(True, False, True), 2) '=> 2
End Sub
You can't just return an array of objects because there's nothing telling React how to render that. You'll need to return an array of components or elements like:
render: function() {
return (
<span>
// This will go through all the elements in arrayFromJson and
// render each one as a <SomeComponent /> with data from the object
{this.state.arrayFromJson.map(function(object) {
return (
<SomeComponent key={object.id} data={object} />
);
})}
</span>
);
}
As the official docs of redux suggest, better to export the unconnected component as well.
In order to be able to test the App component itself without having to deal with the decorator, we recommend you to also export the undecorated component:
import { connect } from 'react-redux'
// Use named export for unconnected component (for tests)
export class App extends Component { /* ... */ }
// Use default export for the connected component (for app)
export default connect(mapStateToProps)(App)
Since the default export is still the decorated component, the import statement pictured above will work as before so you won't have to change your application code. However, you can now import the undecorated App components in your test file like this:
// Note the curly braces: grab the named export instead of default export
import { App } from './App'
And if you need both:
import ConnectedApp, { App } from './App'
In the app itself, you would still import it normally:
import App from './App'
You would only use the named export for tests.
You cannot "edit" a default theme, they are "locked in"
However, you can copy it into your own custom theme, with the exact modifications you'd like.
For more info, see these articles: https://code.visualstudio.com/Docs/customization/themes https://code.visualstudio.com/docs/extensions/install-extension#_your-extensions-folder
If all you want to change is the colors for C++ code, you should look at overwriting the c++ support colorizer. For info about that, go here: https://code.visualstudio.com/docs/customization/colorizer
EDIT: The dark theme is found here: https://github.com/Microsoft/vscode/tree/80f8000c10b4234c7b027dccfd627442623902d2/extensions/theme-colorful-defaults
EDIT2: To clarify:
I solved it by making two sourcesets , one free and one paid. Both of these folders will contain required java code and resource files, which will be edited to the requirements of the particular flavor. For example, You would like to remove AdMob Code in the Paid both from Java Classes and Layout Files.
use this URL : "https://twitter.com/(userName)/profile_image?size=original"
If you are using TWitter SDK you can get the user name when logged in, with TWTRAPIClient
, using TWTRAuthSession
.
This is the code snipe for iOS:
if let twitterId = session.userID{
let twitterClient = TWTRAPIClient(userID: twitterId)
twitterClient.loadUser(withID: twitterId) {(user, error) in
if let userName = user?.screenName{
let url = "https://twitter.com/\(userName)/profile_image?size=original")
}
}
}
In your main.ts file bootstrap after DOMContentLoaded so angular will load when DOM is fully loaded.
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
import { environment } from './environments/environment';
if (environment.production) {
enableProdMode();
}
document.addEventListener('DOMContentLoaded', () => {
platformBrowserDynamic().bootstrapModule(AppModule)
.catch(err => console.log(err));
});
Another possible solution, that worked for me:
Currently, react-router-redux
is in beta and npm returns 4.x, but not 5.x. But the @types/react-router-redux
returned 5.x. So there were undefined variables used.
Forcing NPM/Yarn to use 5.x solved it for me.
I Hope this is Helpfull
Step 1: App.js is (main module) import the Login Module
import React, { Component } from 'react';
import './App.css';
import Login from './login/login';
class App extends Component {
render() {
return (
<Login />
);
}
}
export default App;
Step 2: Create Login Folder and create login.js file and customize your needs it automatically render to App.js Example Login.js
import React, { Component } from 'react';
import '../login/login.css';
class Login extends Component {
render() {
return (
<div className="App">
<header className="App-header">
<h1 className="App-title">Welcome to React</h1>
</header>
<p className="App-intro">
To get started, edit <code>src/App.js</code> and save to reload.
</p>
</div>
);
}
}
export default Login;
In my case the error was happening because I returned elements array in curly braces instead of just returning the array itself.
Code with error
render() {
var rows = this.props.products.map(product => <tr key={product.id}><td>{product.name}</td><td>{product.price}</td></tr>
);
return {rows};
}
Correct code
render() {
var rows = this.props.products.map(product => <tr key={product.id}><td>{product.name}</td><td>{product.price}</td></tr>
);
return rows;
}
To check if LocalDb is installed or not:
cmd
and type in sqllocaldb i
this should give you the installed sqllocaldb instances if found.(localdb)\V11.0
using windows authentication.If an error is raised Cannot connect to (localdb)\V11.0.
change the instance name to (localdb)\MSSQLLocalDB
and try again to connect, if you still get the same error.
Follow these steps to install LocalDb:
Start Menu
and type in search sqlLocalDb
.sqlLocalDb.msi
and click it.after finishing the installation re-run SSMS
and try connecting to either of the instances (localdb)\V11.0
or (localdb)\MSSQLLocalDB
, one of it should work depending on what Visual Studio version you have.
You can also verify that localdb
is installed using Visual Studio by simply creating new sql file and go to the connect icon on the top header of the file which by default lists all the servers you can connect to including localdb
if installed.
In addition to the above mentioned ways of finding if localdb is installed, you can also use the MS windows power shell
or windows command processor CMD
or even NuGet package manager console
on your server machine and run these commands sqllocaldb i
and sqllocaldb v
that will show you the localdb name if it is installed and the MSSQL server version installed and running on your machine.
Sub test()
Dim FSO As Object
Set FSO = CreateObject("Scripting.FileSystemObject")
Set folder1 = FSO.GetFolder(FromPath).Files
FolderPath_1 = "D:\Arun\Macro Files\UK Marco\External Sales Tool for Au\Example Files\"
Workbooks.Add
Set Movenamelist = ActiveWorkbook
For Each fil In folder1
Movenamelist.Activate
Range("A100000").End(xlUp).Offset(1, 0).Value = fil
ActiveCell.Offset(1, 0).Select
Next
End Sub
The best way is to declare the variable as a Single
or a Double
depending on the precision you need. The data type Single
utilizes 4 Bytes and has the range of -3.402823E38 to 1.401298E45. Double
uses 8 Bytes.
You can declare as follows:
Dim decAsdf as Single
or
Dim decAsdf as Double
Here is an example which displays a message box with the value of the variable after calculation. All you have to do is put it in a module and run it.
Sub doubleDataTypeExample()
Dim doubleTest As Double
doubleTest = 0.0000045 * 0.005 * 0.01
MsgBox "doubleTest = " & doubleTest
End Sub
Try CountA
:
Dim myArray(1 to 10) as String
Dim arrayCount as String
arrayCount = Application.CountA(myArray)
Debug.Print arrayCount
I found an easy way using the new callback refs. You can just pass a callback as a prop to the child component. Like this:
class Container extends React.Component {
constructor(props) {
super(props)
this.setRef = this.setRef.bind(this)
}
setRef(node) {
this.childRef = node
}
render() {
return <Child setRef={ this.setRef }/>
}
}
const Child = ({ setRef }) => (
<div ref={ setRef }>
</div>
)
Here's an example of doing this with a modal:
class Container extends React.Component {
constructor(props) {
super(props)
this.state = {
modalOpen: false
}
this.open = this.open.bind(this)
this.close = this.close.bind(this)
this.setModal = this.setModal.bind(this)
}
open() {
this.setState({ open: true })
}
close(event) {
if (!this.modal.contains(event.target)) {
this.setState({ open: false })
}
}
setModal(node) {
this.modal = node
}
render() {
let { modalOpen } = this.state
return (
<div>
<button onClick={ this.open }>Open</button>
{
modalOpen ? <Modal close={ this.close } setModal={ this.setModal }/> : null
}
</div>
)
}
}
const Modal = ({ close, setModal }) => (
<div className='modal' onClick={ close }>
<div className='modal-window' ref={ setModal }>
</div>
</div>
)
<color name="blackColorPrimary">#000001</color> (not #000000)
<item name="android:navigationBarColor" tools:targetApi="lollipop">@color/blackColorPrimary</item>
Problem is that android higher version make trasparent for #000000
In my case this error was caused by hot reloading, while introducing new classes. In that stage of the project, use normal watchers to compile your code.
please open your android sdk installed directory then,
in my path :
E:\Android\sdk\extras\android\support\v7\appcompat
then you can see " project.properties" file
open it and change target "target=android-19" to "target=android-23"
its worked for me.
Your function worked for me after changing its declaration to this ...
Function processArr(Arr As Variant) As String
You could also consider a ParamArray
like this ...
Function processArr(ParamArray Arr() As Variant) As String
'Dim N As Variant
Dim N As Long
Dim finalStr As String
For N = LBound(Arr) To UBound(Arr)
finalStr = finalStr & Arr(N)
Next N
processArr = finalStr
End Function
And then call the function like this ...
processArr("foo", "bar")
I would do this as
if isnumeric(ubound(a)) = False then msgbox "a is empty!"
You can't close a current window or any window or page that is opened using '_self' But you can do this
var customWindow = window.open('', '_blank', '');
customWindow.close();
For me the error was:
Error: unexpected input in "?"
and the fix was opening the script in a hex editor and removing the first 3 characters from the file. The file was starting with an UTF-8 BOM and it seems that Rscript can't read that.
EDIT: OP requested an example. Here it goes.
? ~ cat a.R
cat('hello world\n')
? ~ xxd a.R
00000000: efbb bf63 6174 2827 6865 6c6c 6f20 776f ...cat('hello wo
00000010: 726c 645c 6e27 290a rld\n').
? ~ R -f a.R
R version 3.4.4 (2018-03-15) -- "Someone to Lean On"
Copyright (C) 2018 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
Natural language support but running in an English locale
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
> cat('hello world\n')
Error: unexpected input in "?"
Execution halted
ls -l --block-size=M
will give you a long format listing (needed to actually see the file size) and round file sizes up to the nearest MiB. If you want MB (10^6 bytes) rather than MiB (2^20 bytes) units, use --block-size=MB instead.
Or
ls -lah
-h When used with the -l option, use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte in order to reduce the number of digits to three or less using base 2 for sizes.
man ls
One think you should change is the call $state.go()
. As described here:
The param passed should be the state name
$scope.create = function() {
// instead of this
//$state.go("/tab/newpost");
// we should use this
$state.go("tab.newpost");
};
Some cite from doc (the first parameter to of the [$state.go(to \[, toParams\] \[, options\]
):
String Absolute State Name or Relative State Path
The name of the state that will be transitioned to or a relative state path. If the path starts with ^ or . then it is relative, otherwise it is absolute.
Some examples:
$state.go('contact.detail') will go to the 'contact.detail' state
$state.go('^') will go to a parent state.
$state.go('^.sibling') will go to a sibling state.
$state.go('.child.grandchild') will go to a grandchild state.
I decided to approach this in a more 'reusable' way. Since finding all constraints affecting a view is the basis for all of the above, I decided to implement a custom sequence that returns them all for me, along with the owning views.
First thing to do is define an extension on Arrays
of NSLayoutConstraint
that returns all elements affecting a specific view.
public extension Array where Element == NSLayoutConstraint {
func affectingView(_ targetView:UIView) -> [NSLayoutConstraint] {
return self.filter{
if let firstView = $0.firstItem as? UIView,
firstView == targetView {
return true
}
if let secondView = $0.secondItem as? UIView,
secondView == targetView {
return true
}
return false
}
}
}
We then use that extension in a custom sequence that returns all constraints affecting that view, along with the views that actually own them (which can be anywhere up the view hierarchy)
public struct AllConstraintsSequence : Sequence {
public init(view:UIView){
self.view = view
}
public let view:UIView
public func makeIterator() -> Iterator {
return Iterator(view:view)
}
public struct Iterator : IteratorProtocol {
public typealias Element = (constraint:NSLayoutConstraint, owningView:UIView)
init(view:UIView){
targetView = view
currentView = view
currentViewConstraintsAffectingTargetView = currentView.constraints.affectingView(targetView)
}
private let targetView : UIView
private var currentView : UIView
private var currentViewConstraintsAffectingTargetView:[NSLayoutConstraint] = []
private var nextConstraintIndex = 0
mutating public func next() -> Element? {
while(true){
if nextConstraintIndex < currentViewConstraintsAffectingTargetView.count {
defer{nextConstraintIndex += 1}
return (currentViewConstraintsAffectingTargetView[nextConstraintIndex], currentView)
}
nextConstraintIndex = 0
guard let superview = currentView.superview else { return nil }
self.currentView = superview
self.currentViewConstraintsAffectingTargetView = currentView.constraints.affectingView(targetView)
}
}
}
}
Finally we declare an extension on UIView
to expose all the constraints affecting it in a simple property that you can access with a simple for-each syntax.
extension UIView {
var constraintsAffectingView:AllConstraintsSequence {
return AllConstraintsSequence(view:self)
}
}
Now we can iterate all constraints affecting a view and do what we want with them...
List their identifiers...
for (constraint, _) in someView.constraintsAffectingView{
print(constraint.identifier ?? "No identifier")
}
Deactivate them...
for (constraint, _) in someView.constraintsAffectingView{
constraint.isActive = false
}
Or remove them entirely...
for (constraint, owningView) in someView.constraintsAffectingView{
owningView.removeConstraints([constraint])
}
Enjoy!
Install the debug build of the service and attach the debugger to the service to see what's happening.
Remove that statement from your manifest altogether, Eclipse will handle that for you on the fly.
You can point to the type with Self
. So:
static let shared = Self()
And should be inside a type, like:
class SomeTypeWithASingletonInstance {
static let shared = Self()
}
You get the error because if
can only evaluate a logical
vector of length 1.
Maybe you miss the difference between &
(|
) and &&
(||
). The shorter version works element-wise and the longer version uses only the first element of each vector, e.g.:
c(TRUE, TRUE) & c(TRUE, FALSE)
# [1] TRUE FALSE
# c(TRUE, TRUE) && c(TRUE, FALSE)
[1] TRUE
You don't need the if
statement at all:
mut1 <- trip$Ref.y=='G' & trip$Variant.y=='T'|trip$Ref.y=='C' & trip$Variant.y=='A'
trip[mut1, "mutType"] <- "G:C to T:A"
There is a much better way to do it
#include<cmath>
...
int size = trunc(log10(num)) + 1
....
works for int and decimal
I feel like there's a much easier way to do this... Just define a class with the type parameters that you want. e.g.:
final class MyClassWrappedByResponse extends ResponseWrapper<MyClass> {
private static final long serialVersionUID = 1L;
}
Now change your code above to this and it should work:
public ResponseWrapper<MyClass> makeRequest(URI uri) {
ResponseEntity<MyClassWrappedByResponse> response = template.exchange(
uri,
HttpMethod.POST,
null,
MyClassWrappedByResponse.class
return response;
}
Add "EntityFramework.SqlServer.dll" into your bin folder. Problem will get resolved.
I actually just found this today for something I'm working on. This will return file paths for all files in a folder and its subfolders.
Dim colFiles As New Collection
RecursiveDir colFiles, "C:\Users\Marek\Desktop\Makro\", "*.*", True
Dim vFile As Variant
For Each vFile In colFiles
'file operation here or store file name/path in a string array for use later in the script
filepath(n) = vFile
filename = fso.GetFileName(vFile) 'If you want the filename without full path
n=n+1
Next vFile
'These two functions are required
Public Function RecursiveDir(colFiles As Collection, strFolder As String, strFileSpec As String, bIncludeSubfolders As Boolean)
Dim strTemp As String
Dim colFolders As New Collection
Dim vFolderName As Variant
strFolder = TrailingSlash(strFolder)
strTemp = Dir(strFolder & strFileSpec)
Do While strTemp <> vbNullString
colFiles.Add strFolder & strTemp
strTemp = Dir
Loop
If bIncludeSubfolders Then
strTemp = Dir(strFolder, vbDirectory)
Do While strTemp <> vbNullString
If (strTemp <> ".") And (strTemp <> "..") Then
If (GetAttr(strFolder & strTemp) And vbDirectory) <> 0 Then
colFolders.Add strTemp
End If
End If
strTemp = Dir
Loop
'Call RecursiveDir for each subfolder in colFolders
For Each vFolderName In colFolders
Call RecursiveDir(colFiles, strFolder & vFolderName, strFileSpec, True)
Next vFolderName
End If
End Function
Public Function TrailingSlash(strFolder As String) As String
If Len(strFolder) > 0 Then
If Right(strFolder, 1) = "\" Then
TrailingSlash = strFolder
Else
TrailingSlash = strFolder & "\"
End If
End If
End Function
This is adapted from a post by Ammara Digital Image Solutions.(http://www.ammara.com/access_image_faq/recursive_folder_search.html).
Important to know in what file it comes to this error (in you example it is META-INF/LICENSE.txt) , in my case it was in META-INF/LICENSE [without ".txt"], and then in the file META-INF/ASL2.0 so I added to my build.gradle this lines:
android {
packagingOptions {
exclude 'META-INF/LICENSE'
exclude 'META-INF/ASL2.0'
}
}
Very important (!) -> add the name of the file in the same style, that you see it in the error message: the text is case sensitive, and there is a difference between *.txt and *(without "txt").
You can use this class:
using System.Collections.Specialized;
class Post_File
{
public static void HttpUploadFile(string url, string file, string paramName, string contentType, NameValueCollection nvc)
{
string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
byte[] boundarybytesF = System.Text.Encoding.ASCII.GetBytes("--" + boundary + "\r\n"); // the first time it itereates, you need to make sure it doesn't put too many new paragraphs down or it completely messes up poor webbrick.
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
wr.Method = "POST";
wr.KeepAlive = true;
wr.Credentials = System.Net.CredentialCache.DefaultCredentials;
wr.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
var nvc2 = new NameValueCollection();
nvc2.Add("Accepts-Language", "en-us,en;q=0.5");
wr.Headers.Add(nvc2);
wr.ContentType = "multipart/form-data; boundary=" + boundary;
Stream rs = wr.GetRequestStream();
bool firstLoop = true;
string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}";
foreach (string key in nvc.Keys)
{
if (firstLoop)
{
rs.Write(boundarybytesF, 0, boundarybytesF.Length);
firstLoop = false;
}
else
{
rs.Write(boundarybytes, 0, boundarybytes.Length);
}
string formitem = string.Format(formdataTemplate, key, nvc[key]);
byte[] formitembytes = System.Text.Encoding.UTF8.GetBytes(formitem);
rs.Write(formitembytes, 0, formitembytes.Length);
}
rs.Write(boundarybytes, 0, boundarybytes.Length);
string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
string header = string.Format(headerTemplate, paramName, new FileInfo(file).Name, contentType);
byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
rs.Write(headerbytes, 0, headerbytes.Length);
FileStream fileStream = new FileStream(file, FileMode.Open, FileAccess.Read);
byte[] buffer = new byte[4096];
int bytesRead = 0;
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
rs.Write(buffer, 0, bytesRead);
}
fileStream.Close();
byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
rs.Write(trailer, 0, trailer.Length);
rs.Close();
WebResponse wresp = null;
try
{
wresp = wr.GetResponse();
Stream stream2 = wresp.GetResponseStream();
StreamReader reader2 = new StreamReader(stream2);
}
catch (Exception ex)
{
if (wresp != null)
{
wresp.Close();
wresp = null;
}
}
finally
{
wr = null;
}
}
}
use it:
NameValueCollection nvc = new NameValueCollection();
//nvc.Add("id", "TTR");
nvc.Add("table_name", "uploadfile");
nvc.Add("commit", "uploadfile");
Post_File.HttpUploadFile("http://example/upload_file.php", @"C:\user\yourfile.docx", "uploadfile", "application/vnd.ms-excel", nvc);
example server upload_file.php
:
m('File upload '.(@copy($_FILES['uploadfile']['tmp_name'],getcwd().'\\'.'/'.$_FILES['uploadfile']['name']) ? 'success' : 'failed'));
function m($msg) {
echo '<div style="background:#f1f1f1;border:1px solid #ddd;padding:15px;font:14px;text-align:center;font-weight:bold;">';
echo $msg;
echo '</div>';
}
IF YOU ARE BUILDING FROM SCRATCH, GO THROUGH THIS
You get No module named cv2.cv
.
Son, you did all step right, since your sudo make install
gave no errors.
However look at this step
$ cd ~/.virtualenvs/cv/lib/python2.7/site-packages/
$ ln -s /usr/local/lib/python2.7/site-packages/cv2.so cv2.so
THE VERY IMPORTANT STEP OF ALL THESE IS TO LINK IT.
ln -s /usr/local/lib/python2.7/site-packages/cv2.so cv2.so
or
ln -s /usr/local/lib/python2.7/dist-packages/cv2.so cv2.so
The moment you choose wise linking, or by brute force just find the cv2.so file if that exist or not
Here I am throwing my output.
Successfully installed numpy-1.15.3
(cv) demonLover-desktop:~$ cd ~/.virtualenvs/cv/lib/python2.7/site-packages/
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ln -s /usr/local/lib/python2.7/site-packages/cv2.so cv2.so
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ pip list
Package Version
---------- -------
numpy 1.15.3
pip 18.1
setuptools 40.5.0
wheel 0.32.2
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ python
Python 2.7.12 (default, Dec 4 2017, 14:50:18)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named cv2
>>>
[2]+ Stopped python
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls /usr/local/lib/python2.7/site-packages/c
ls: cannot access '/usr/local/lib/python2.7/site-packages/c': No such file or directory
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls /usr/local/lib/python2.7/site-packages/
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ deactivate
demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls /usr/local/lib/python2.7/site-packages/
demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls
cv2.so easy_install.py easy_install.pyc numpy numpy-1.15.3.dist-info pip pip-18.1.dist-info pkg_resources setuptools setuptools-40.5.0.dist-info wheel wheel-0.32.2.dist-info
demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls /usr/local/lib/python2.7/site-packages/
demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls -l /usr/local/lib/python2.7/site-packages/
total 0
demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls
cv2.so easy_install.py easy_install.pyc numpy numpy-1.15.3.dist-info pip pip-18.1.dist-info pkg_resources setuptools setuptools-40.5.0.dist-info wheel wheel-0.32.2.dist-info
demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ workon cv
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ python
Python 2.7.12 (default, Dec 4 2017, 14:50:18)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named cv2
>>>
[3]+ Stopped python
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ find / -name "cv2.so"
find: ‘/lost+found’: Permission denied
find: ‘/run/udisks2’: Permission denied
find: ‘/run/docker’: Permission denied
find: ‘/run/exim4’: Permission denied
find: ‘/run/lightdm’: Permission denied
find: ‘/run/cups/certs’: Permission denied
find: ‘/run/sudo’: Permission denied
find: ‘/run/samba/ncalrpc/np’: Permission denied
find: ‘/run/postgresql/9.5-main.pg_stat_tmp’: Permission denied
find: ‘/run/postgresql/10-main.pg_stat_tmp’: Permission denied
find: ‘/run/lvm’: Permission denied
find: ‘/run/systemd/inaccessible’: Permission denied
find: ‘/run/lock/lvm’: Permission denied
find: ‘/root’: Permission denied
^C
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ sudofind / -name "cv2.so"
sudofind: command not found
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ^C
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ sudo find / -name "cv2.so"
[sudo] password for app:
find: ‘/run/user/1000/gvfs’: Permission denied
^C
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ sudo find /usr/ -name "cv2.so"
/usr/local/lib/python2.7/dist-packages/cv2.so
^C
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ln -s /usr/local/lib/python2.7/dist-packages/ccv2.so cv2.so
click/ clonevirtualenv.pyc configparser-3.5.0.dist-info/ configparser.py cv2.so cycler.py
clonevirtualenv.py concurrent/ configparser-3.5.0-nspkg.pth configparser.pyc cycler-0.10.0.dist-info/ cycler.pyc
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ln -s /usr/local/lib/python2.7/dist-packages/cv2.so cv2.so
ln: failed to create symbolic link 'cv2.so': File exists
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ rm cv2.so
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ln -s /usr/local/lib/python2.7/dist-packages/cv2.so cv2.so
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ ls
cv2.so easy_install.py easy_install.pyc numpy numpy-1.15.3.dist-info pip pip-18.1.dist-info pkg_resources setuptools setuptools-40.5.0.dist-info wheel wheel-0.32.2.dist-info
(cv) demonLover-desktop:~/.virtualenvs/cv/lib/python2.7/site-packages$ python
Python 2.7.12 (default, Dec 4 2017, 14:50:18)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>>
My step will only help, if your built is done right.
I had a similar issue with mongoose :
fields:
[ '[object Object]',
'[object Object]',
'[object Object]',
'[object Object]' ] }
In fact, I was using "type" as a property name in my schema :
fields: [
{
name: String,
type: {
type: String
},
registrationEnabled: Boolean,
checkinEnabled: Boolean
}
]
To avoid that behavior, you have to change the parameter to :
fields: [
{
name: String,
type: {
type: { type: String }
},
registrationEnabled: Boolean,
checkinEnabled: Boolean
}
]
As far as I'm aware, you can't declare custom fonts in xml or themes. I usually just make custom classes extending textview that set their own font on instantiation and use those in my layout xml files.
ie:
public class Museo500TextView extends TextView {
public Museo500TextView(Context context, AttributeSet attrs) {
super(context, attrs);
this.setTypeface(Typeface.createFromAsset(context.getAssets(), "path/to/font.ttf"));
}
}
and
<my.package.views.Museo900TextView
android:id="@+id/dialog_error_text_header"
android:layout_width="190dp"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:textSize="12sp" />
I use POST body for anything non-trivial and line-of-business apps for these reasons:
BTW, I also put the fields to return in my POST body as I may not wish to expose my field names. Security is like an onion; it has many layers and makes us cry!
There are two issues here. The first is to access fields in the array returned by your JSON parse, the second is to rename collections/fields (like sentences) away from VBA reserved names.
Let's address the second concern first. You were on the right track. First, replace all instances of sentences
with jsentences
If text within your JSON also contains the word sentences, then figure out a way to make the replacement unique, such as using "sentences":[
as the search string. You can use the VBA Replace
method to do this.
Once that's done, so VBA will stop renaming sentences to Sentences, it's just a matter of accessing the array like so:
'first, declare the variables you need:
Dim jsent as Variant
'Get arr all setup, then
For Each jsent in arr.jsentences
MsgBox(jsent.orig)
Next
Try setting a custom CultureInfo for CurrentCulture and CurrentUICulture.
Globalization.CultureInfo customCulture = new Globalization.CultureInfo("en-US", true);
customCulture.DateTimeFormat.ShortDatePattern = "yyyy-MM-dd h:mm tt";
System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;
System.Threading.Thread.CurrentThread.CurrentUICulture = customCulture;
DateTime newDate = System.Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd h:mm tt"));
everybody I need your Attention that two dll EntityFramework.dll And EntityFramework.SqlServer.dll are DataAccess layer Library And it is not Logical to Use them in view or any other layer.it solves your problem but it is not logical.
logical way is that enitiess attribute remove and replace them with Fluent API.this is real solution
you have to add the property Tables to the DataGridView Data Source
dataGridView1.DataSource = table.Tables[0];
If you have a Users as response or a Array/JSON you defined, First You need to set the selected value in controller, then you put the same model name in html. This example i wrote to explain in easiest way.
Simple example
Inside Controller:
$scope.Users = ["Suresh","Mahesh","Ramesh"];
$scope.selectedUser = $scope.Users[0];
Your HTML
<select data-ng-options="usr for usr in Users" data-ng-model="selectedUser">
</select>
complex example
Inside Controller:
$scope.JSON = {
"ResponseObject":
[{
"Name": "Suresh",
"userID": 1
},
{
"Name": "Mahesh",
"userID": 2
}]
};
$scope.selectedUser = $scope.JSON.ResponseObject[0];
Your HTML
<select data-ng-options="usr.Name for usr in JSON.ResponseObject" data-ng-model="selectedUser"></select>
<h3>You selected: {{selectedUser.Name}}</h3>
[x if x % 2 else x * 100 for x in range(1, 10) ]
Read the message:
Only one
<configSections>
element allowed per config file and if present must be the first child of the root<configuration>
element.
Move the configSections element to the top - just above where system.data is currently.
The callback to $.each()
is passed the property name and the value, in that order. You're therefore trying to iterate over the property names in the inner call to $.each()
. I think you want:
$.each(myMap, function (i, val) {
$.each(val, function(innerKey, innerValue) {
// ...
});
});
In the inner loop, given an object like your map, the values are arrays. That's OK, but note that the "innerKey" values will all be numbers.
edit — Now once that's straightened out, here's the next problem:
setTimeout(function () {
// ...
}, i * 6000);
The first time through that loop, "i" will be the string "partnr1". Thus, that multiplication attempt will result in a NaN
. You can keep an external counter to keep track of the property count of the outer map:
var pcount = 1;
$.each(myMap, function(i, val) {
$.each(val, function(innerKey, innerValue) {
setTimeout(function() {
// ...
}, pcount++ * 6000);
});
});
In my case, @
caused some sort of encoding problem, I still prefer my old way:
curl -d "$(cat /path/to/file)" https://example.com
Just append a #
followed by the ID of the <a>
tag (or other HTML tag, like a <section>
) that you're trying to get to. For example, if you are trying to link to the header in this HTML:
<p>This is some content.</p>
<h2><a id="target">Some Header</a></h2>
<p>This is some more content.</p>
You could use the link <a href="http://url.to.site/index.html#target">Link</a>
.
use app.render
in scenarios where you need to render a view but not send it to a client via http. html emails springs to mind.
Here is another variation without extra row/s to set default values. The boolean value is always assigned, so that it can be used in logical statements without checking beforehand:
import argparse
parser = argparse.ArgumentParser(description="Parse bool")
parser.add_argument("--do-something", default=False, action="store_true",
help="Flag to do something")
args = parser.parse_args()
if args.do_something:
print("Do something")
else:
print("Don't do something")
print(f"Check that args.do_something={args.do_something} is always a bool.")
When i Tried your Code i got en Error when i wanted to fill the Array.
you can try to fill the Array like This.
Sub Testing_Data()
Dim k As Long, S2 As Worksheet, VArray
Application.ScreenUpdating = False
Set S2 = ThisWorkbook.Sheets("Sheet1")
With S2
VArray = .Range("A1:A" & .Cells(Rows.Count, "A").End(xlUp).Row)
End With
For k = 2 To UBound(VArray, 1)
S2.Cells(k, "B") = VArray(k, 1) / 100
S2.Cells(k, "C") = VArray(k, 1) * S2.Cells(k, "B")
Next
End Sub
If you want that all normal output of your Batch script be silent (like in your example), the easiest way to do that is to run the Batch file with a redirection:
C:\Temp> test.bat >nul
This method does not require to modify a single line in the script and it still show error messages in the screen. To supress all the output, including error messages:
C:\Temp> test.bat >nul 2>&1
If your script have lines that produce output you want to appear in screen, perhaps will be simpler to add redirection to those lineas instead of all the lines you want to keep silent:
@ECHO OFF
SET scriptDirectory=%~dp0
COPY %scriptDirectory%test.bat %scriptDirectory%test2.bat
FOR /F %%f IN ('dir /B "%scriptDirectory%*.noext"') DO (
del "%scriptDirectory%%%f"
)
ECHO
REM Next line DO appear in the screen
ECHO Script completed >con
Antonio
In my case I resolved the problem by installing SQL Server 2012 Developer Edition when I had previously installed SQL Server Express 2012 (x64). It seems that provided me with the missing dependency.
Here's a different approach. The heart of it was created by turning on the Macro Recorder and filtering the columns per your specifications. Then there's a bit of code to copy the results. It will run faster than looping through each row and column:
Sub FilterAndCopy()
Dim LastRow As Long
Sheets("Sheet2").UsedRange.Offset(0).ClearContents
With Worksheets("Sheet1")
.Range("$A:$E").AutoFilter
.Range("$A:$E").AutoFilter field:=1, Criteria1:="#N/A"
.Range("$A:$E").AutoFilter field:=2, Criteria1:="=String1", Operator:=xlOr, Criteria2:="=string2"
.Range("$A:$E").AutoFilter field:=3, Criteria1:=">0"
.Range("$A:$E").AutoFilter field:=5, Criteria1:="Number"
LastRow = .Range("A" & .Rows.Count).End(xlUp).Row
.Range("A1:A" & LastRow).SpecialCells(xlCellTypeVisible).EntireRow.Copy _
Destination:=Sheets("Sheet2").Range("A1")
End With
End Sub
As a side note, your code has more loops and counter variables than necessary. You wouldn't need to loop through the columns, just through the rows. You'd then check the various cells of interest in that row, much like you did.
Use CultureInfo
class to change your culture info.
var dutchCultureInfo = CultureInfo.CreateSpecificCulture("nl-NL");
var date1 = DateTime.ParseExact(date, "dd.MM.yyyy HH:mm:ss", dutchCultureInfo);
How are you loading this page? Is it getting anything on POST to load? If it's not, then the $name = $_POST['Name']; assignation doesn't have any 'Name' on POST.
Not for entire application or particular class.
CurrentUICulture and CurrentCulture are settable per thread as discussed here Is there a way of setting culture for a whole application? All current threads and new threads?. You can't change InvariantCulture
at all.
Sample code to change cultures for current thread:
CultureInfo ci = new CultureInfo(theCultureString);
Thread.CurrentThread.CurrentCulture = ci;
Thread.CurrentThread.CurrentUICulture = ci;
For class you can set/restore culture inside critical methods, but it would be significantly safe to use appropriate overrides for most formatting related methods that take culture as one of arguments:
(3.3).ToString(new CultureInfo("fr-FR"))
Try this:
var mydtn = DateTime.Today;
var myDt = mydtn.Date;return myDt.ToString("d", CultureInfo.GetCultureInfo("en-US"));
Once you define a class (MyDTOClass) indicating what you expect to receive it should be as simple as...
public ActionResult Post([FromBody]MyDTOClass inputData){
... do something with input data ...
}
Thx to Julias:
Make sure your request is sent with the http header:
Content-Type: application/json
I got few links sometime back while reading on ExtJS full framework in itself is JSON.
http://www.thomasfrank.se/xml_to_json.html
http://camel.apache.org/xmljson.html
online XML to JSON converter : http://jsontoxml.utilities-online.info/
UPDATE BTW, To get JSON as added in question, HTML need to have type & content tags in it too like this or you need to use some xslt transformation to add these elements while doing JSON conversion
<?xml version="1.0" encoding="UTF-8" ?>
<type>div</type>
<content>
<type>span</type>
<content>Text2</content>
</content>
<content>Text2</content>
To answer "why" someone might use it, I was tempted to use it since I had the $_POST values stored after the page refresh or while going from one page to another. My sense tells me this is not a good practice, but it works nevertheless.
I had the same problem as one of my <div>'s had the margin set by the browser. It was quite annoying but then I figured out as most of the people said, it's a markup error.
I went back and checked my <head> section and my CSS link was like below:
<link rel="stylesheet" href="ex.css">
I included type
in it and made it like below:
<link rel="stylesheet" type="text/css" href="ex.css">
My problem was solved.
Just delete the table and create a new table with a different name. Also Don't delete entire row for that table. It seems when entire row containing table row is delete it damages the DataBodyRange is damaged
You can use the --system-site-packages
and then "overinstall" the specific stuff for your virtualenv. That way, everything you install into your virtualenv will be taken from there, otherwise it will be taken from your system.
I was able to convert using below method for my WebAPI:
[HttpPost]
public HttpResponseMessage Post(dynamic item) // Passing parameter as dynamic
{
JArray itemArray = item["Region"]; // You need to add JSON.NET library
JObject obj = itemArray[0] as JObject; // Converting from JArray to JObject
Region objRegion = obj.ToObject<Region>(); // Converting to Region object
}
Make two static cultures, one for comma and one for point.
var commaCulture = new CultureInfo("en")
{
NumberFormat =
{
NumberDecimalSeparator = ","
}
};
var pointCulture = new CultureInfo("en")
{
NumberFormat =
{
NumberDecimalSeparator = "."
}
};
Then use each one respectively, depending on the input (using a function):
public double ConvertToDouble(string input)
{
input = input.Trim();
if (input == "0") {
return 0;
}
if (input.Contains(",") && input.Split(',').Length == 2)
{
return Convert.ToDouble(input, commaCulture);
}
if (input.Contains(".") && input.Split('.').Length == 2)
{
return Convert.ToDouble(input, pointCulture);
}
throw new Exception("Invalid input!");
}
Then loop through your arrays
var strings = new List<string> {"0,12", "0.122", "1,23", "00,0", "0.00", "12.5000", "0.002", "0,001"};
var doubles = new List<double>();
foreach (var value in strings) {
doubles.Add(ConvertToDouble(value));
}
This should work even though the host environment and culture changes.
According to the documentation of the Item
property:
Sets or returns an item for a specified key in a Dictionary object.
In your case, you don't have an item whose key is 1
so doing:
s = d.Item(i)
actually creates a new key / value pair in your dictionary, and the value is empty because you have not used the optional newItem
argument.
The Dictionary also has the Items
method which allows looping over the indices:
a = d.Items
For i = 0 To d.Count - 1
s = a(i)
Next i
you can write .WorkbookConnection.Delete after .Refresh BackgroundQuery:=False this will delete text file external connection.
The easiest way to determine the week number ISO 8601 style using c# and the DateTime class.
Ask this: the how-many-eth thursday of the year is the thursday of this week. The answer equals the wanted week number.
var dayOfWeek = (int)moment.DayOfWeek;
// Make monday the first day of the week
if (--dayOfWeek < 0)
dayOfWeek = 6;
// The whole nr of weeks before this thursday plus one is the week number
var weekNumber = (moment.AddDays(3 - dayOfWeek).DayOfYear - 1) / 7 + 1;
Use the Filter() method as shown here - https://docs.microsoft.com/en-us/office/vba/language/reference/user-interface-help/filter-function
assylias and Head of Catering have already given your the reason why the error is occurring.
Now regarding what you are doing, from what I understand, you don't need to use Select
at all
I guess you are doing this from VBA PowerPoint? If yes, then your code be rewritten as
Dim sourceXL As Object, sourceBook As Object
Dim sourceSheet As Object, sourceSheetSum As Object
Dim lRow As Long
Dim measName As Variant, partName As Variant
Dim filepath As String
filepath = CStr(FileDialog)
'~~> Establish an EXCEL application object
On Error Resume Next
Set sourceXL = GetObject(, "Excel.Application")
'~~> If not found then create new instance
If Err.Number <> 0 Then
Set sourceXL = CreateObject("Excel.Application")
End If
Err.Clear
On Error GoTo 0
Set sourceBook = sourceXL.Workbooks.Open(filepath)
Set sourceSheet = sourceBook.Sheets("Measurements")
Set sourceSheetSum = sourceBook.Sheets("Analysis Summary")
lRow = sourceSheetSum.Range("C" & sourceSheetSum.Rows.Count).End(xlUp).Row
measName = sourceSheetSum.Range("C3:C" & lRow)
lRow = sourceSheetSum.Range("D" & sourceSheetSum.Rows.Count).End(xlUp).Row
partName = sourceSheetSum.Range("D3:D" & lRow)
Dir seems to be very fast.
Sub LoopThroughFiles()
Dim MyObj As Object, MySource As Object, file As Variant
file = Dir("c:\testfolder\")
While (file <> "")
If InStr(file, "test") > 0 Then
MsgBox "found " & file
Exit Sub
End If
file = Dir
Wend
End Sub
You can use WebClient.
Or (if you need more fine-grained control over the request) HttpWebRequest
Or, HttpClient in System.Net.Http.dll.
Here's a "translation" to HttpWebRequest (needed rather than WebClient in order to set the referrer). (Uses System.Net and System.IO):
HttpWebRequest http = (HttpWebRequest)HttpWebRequest.Create(requestUrl))
http.Referer = referrer;
HttpWebResponse response = (HttpWebResponse )http.GetResponse();
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
string responseJson = sr.ReadToEnd();
// more stuff
}
This is the shortest I could get using Core Java.
List<Integer> makeSequence(int begin, int end) {
List<Integer> ret = new ArrayList(end - begin + 1);
for(int i = begin; i <= end; i++, ret.add(i));
return ret;
}
The usual way is to use zip()
:
for x, y in zip(a, b):
# x is from a, y is from b
This will stop when the shorter of the two iterables a
and b
is exhausted. Also worth noting: itertools.izip()
(Python 2 only) and itertools.izip_longest()
(itertools.zip_longest()
in Python 3).
Oracle JDBC drivers and other companion Jars are available on Central Maven. We suggest to use the official supported Oracle JDBC versions from 11.2.0.4, 12.2.0.2, 18.3.0.0, 19.3.0.0, 19.6.0.0, and 19.7.0.0. These are available on Central Maven Repository. Refer to Maven Central Guide for more details.
It is recommended to use the latest version. Check out FAQ for JDK compatibility.
This variant looks more simple and elegant.
CollectionType typeReference =
TypeFactory.defaultInstance().constructCollectionType(List.class, Dto.class);
List<Dto> resultDto = objectMapper.readValue(content, typeReference);
For things like numbers (decimal points, commas in amounts), they are usually preferred in the specific culture.
A appropriate way to do this would be set it at the culture level (for German) like this:
Thread.CurrentThread.CurrentCulture.NumberFormat = new CultureInfo("de").NumberFormat;
Sorry to bump an old question but the answer is to count the character length of the cell and not its value.
CellCount = Cells(Row, 10).Value
If Len(CellCount) <= "13" Then
'do something
End If
hope that helps. Cheers
This is pretty much what the generic method Value()
is for. You get exactly the behavior you want if you combine it with nullable value types and the ??
operator:
width = jToken.Value<double?>("width") ?? 100;
Have you tried the import text function.
If you aim to have the "circle" maintain a visual aspect ratio of 1 no matter what the data coordinates are, you could use the scatter() method. http://matplotlib.org/1.3.1/api/pyplot_api.html#matplotlib.pyplot.scatter
import matplotlib.pyplot as plt
x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]
r = [100, 80, 60, 40, 20] # in points, not data units
fig, ax = plt.subplots(1, 1)
ax.scatter(x, y, s=r)
fig.show()
Yes it is deprecated. Replace your SessionFactory with the following:
In Hibernate 4.0, 4.1, 4.2
private static SessionFactory sessionFactory;
private static ServiceRegistry serviceRegistry;
public static SessionFactory createSessionFactory() {
Configuration configuration = new Configuration();
configuration.configure();
ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(
configuration.getProperties()). buildServiceRegistry();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
return sessionFactory;
}
UPDATE:
In Hibernate 4.3 ServiceRegistryBuilder is deprecated. Use the following instead.
serviceRegistry = new StandardServiceRegistryBuilder().applySettings(
configuration.getProperties()).build();
It's probably the same problem with cultures as presented in this related SO-thread: Why can't DateTime.ParseExact() parse "9/1/2009" using "M/d/yyyy"
You already specified the culture, so try escaping the slashes.
This blog post explains very well:
(just replace 9.X by your version. e.g: 9.6)
A. If installed PostgreSQL with homebrew, enter brew uninstall postgresql
B. If you used the EnterpriseDB installer, follow the following step.
Run the uninstaller on terminal window: sudo /Library/PostgreSQL/9.X/uninstall-postgresql.app/Contents/MacOS/installbuilder.sh
C. If installed with Postgres Installer, do:
open /Library/PostgreSQL/9.X/uninstall-postgresql.app
Remove the PostgreSQL and data folders. The Wizard will notify you that these were not removed.
sudo rm -rf /Library/PostgreSQL
Remove the ini file:
sudo rm /etc/postgres-reg.ini
Remove the PostgreSQL user using System Preferences -> Users & Groups.
Unlock the settings panel by clicking on the padlock and entering your password.
Select the PostgreSQL user and click on the minus button.
Restore your shared memory settings: sudo rm /etc/sysctl.conf
If we are use chosen dropdown list, then we can use below css(No JS/JQuery require)
<select chosen="{width: '100%'}" ng-
model="modelName" class="form-control input-
sm"
ng-
options="persons.persons as
persons.persons for persons in
jsonData"
ng-
change="anyFunction(anyParam)"
required>
<option value=""> </option>
</select>
<style>
.chosen-container .chosen-drop {
border-bottom: 0;
border-top: 1px solid #aaa;
top: auto;
bottom: 40px;
}
.chosen-container.chosen-with-drop .chosen-single {
border-top-left-radius: 0px;
border-top-right-radius: 0px;
border-bottom-left-radius: 5px;
border-bottom-right-radius: 5px;
background-image: none;
}
.chosen-container.chosen-with-drop .chosen-drop {
border-bottom-left-radius: 0px;
border-bottom-right-radius: 0px;
border-top-left-radius: 5px;
border-top-right-radius: 5px;
box-shadow: none;
margin-bottom: -16px;
}
</style>
Here's the issue: You can't specify font weights that don't exist in the font set from Google. Click on the SEE SPECIMEN link below the font, then scroll down to the STYLES section. There you'll see each of the "styles" available for that particular font. Sadly Google doesn't list the CSS font weights for each style. Here's how the names map to CSS font weight numbers:
Thin 100
Extra Light 200
Light 300
Regular 400
Medium 500
Semi-Bold 600
Bold 700
Extra-Bold 800
Black 900
Note that very few fonts come in all 9 weights.
Everythings works well. You can't use divtag.onclick, becease "onclick" attribute doesn't exist. You need first create this attribute by using .setAttribute(). Look on this http://reference.sitepoint.com/javascript/Element/setAttribute . You should read documentations first before you start giving "-".
This happened to me because I created a new project which was trying to use System.Web.Providers
DefaultMembershipProvider
for membership. My DB and application was set up to use System.Web.Security.SqlMembershipProvider
instead. I had to update the provider and connection string (since this provider seems to have some weird connection string requirements) to get it working.
Place the link location in the action=""
of a wrapping form
tag.
Your first link would be:
<form action="1.html">
<input type="submit" class="button_active" value="1">
</form>
If you're looking for efficiency, use this:
string.Equals(val, "astringvalue", StringComparison.OrdinalIgnoreCase)
Ordinal comparisons can be significantly faster than culture-aware comparisons.
ToLowerCase
can be the better option if you're doing a lot of comparisons against the same string, however.
As with any performance optimization: measure it, then decide!
Actually I don't see any nulls:
given:
static void Main()
{
string[] testArray = new string[]
{
"aa",
"ab",
"ac",
"ad",
"ab",
"af"
};
Array.Sort(testArray, StringComparer.InvariantCulture);
Array.ForEach(testArray, x => Console.WriteLine(x));
}
I obtained:
It seems you (and/or your company) have a fundamental misunderstanding of what a family tree is supposed to be.
Let me clarify, I also work for a company that has (as one of its products) a family tree in its portfolio, and we have been struggling with similar problems.
The problem, in our case, and I assume your case as well, comes from the GEDCOM format that is extremely opinionated about what a family should be. However this format contains some severe misconceptions about what a family tree really looks like.
GEDCOM has many issues, such as incompatibility with same sex relations, incest, etc... Which in real life happens more often than you'd imagine (especially when going back in time to the 1700-1800).
We have modeled our family tree to what happens in the real world: Events (for example, births, weddings, engagement, unions, deaths, adoptions, etc.). We do not put any restrictions on these, except for logically impossible ones (for example, one can't be one's own parent, relations need two individuals, etc...)
The lack of validations gives us a more "real world", simpler and more flexible solution.
As for this specific case, I would suggest removing the assertions as they do not hold universally.
For displaying issues (that will arise) I would suggest drawing the same node as many times as needed, hinting at the duplication by lighting up all the copies on selecting one of them.
Have added ErrorHandler to this in case the user hits the cancel button instead of selecting a folder. So instead of getting a horrible error message you get a message that a folder must be selected and then the routine ends. Below code also stores the folder path in a range name (Which is just linked to cell A1 on a sheet).
Sub SelectFolder()
Dim diaFolder As FileDialog
'Open the file dialog
On Error GoTo ErrorHandler
Set diaFolder = Application.FileDialog(msoFileDialogFolderPicker)
diaFolder.AllowMultiSelect = False
diaFolder.Title = "Select a folder then hit OK"
diaFolder.Show
Range("IC_Files_Path").Value = diaFolder.SelectedItems(1)
Set diaFolder = Nothing
Exit Sub
ErrorHandler:
Msg = "No folder selected, you must select a folder for program to run"
Style = vbError
Title = "Need to Select Folder"
Response = MsgBox(Msg, Style, Title)
End Sub
As pointed out by others, your problem is that you have not declared an array
Below I've tried to recreate your program so that it works as you intended. I tried to leave as much as possible as it was (such as leaving your array as a variant)
Public Sub Testprog()
'"test()" is an array, "test" is not
Dim test() As Variant
'I am assuming that iCounter is the array size
Dim iCounter As Integer
'"On Error Resume Next" just makes us skip over a section that throws the error
On Error Resume Next
'if test() has not been assigned a UBound or LBound yet, calling either will throw an error
' without an LBound and UBound an array won't hold anything (we will assign them later)
'Array size can be determined by (UBound(test) - LBound(test)) + 1
If (UBound(test) - LBound(test)) + 1 > 0 Then
iCounter = (UBound(test) - LBound(test)) + 1
'So that we don't run the code that deals with UBound(test) throwing an error
Exit Sub
End If
'All the code below here will run if UBound(test)/LBound(test) threw an error
iCounter = 0
'This makes LBound(test) = 0
' and UBound(test) = iCounter where iCounter is 0
' Which gives us one element at test(0)
ReDim Preserve test(0 To iCounter)
test(iCounter) = "test"
End Sub
Another simple alternative is to wrap your function parameters in a tuple and then wrap the parameters that should be passed in tuples as well. This is perhaps not ideal when dealing with large pieces of data. I believe it would make copies for each tuple.
from multiprocessing import Pool
def f((a,b,c,d)):
print a,b,c,d
return a + b + c +d
if __name__ == '__main__':
p = Pool(10)
data = [(i+0,i+1,i+2,i+3) for i in xrange(10)]
print(p.map(f, data))
p.close()
p.join()
Gives the output in some random order:
0 1 2 3
1 2 3 4
2 3 4 5
3 4 5 6
4 5 6 7
5 6 7 8
7 8 9 10
6 7 8 9
8 9 10 11
9 10 11 12
[6, 10, 14, 18, 22, 26, 30, 34, 38, 42]
Nice suggestion but you got a small problem in lastday. You should change it to:
lastday = new Date(firstday.getTime() + 60 * 60 *24 * 6 * 1000);
Improved Lukas Knuth's version:
public class TweakedWebView extends WebView {
private ZoomButtonsController zoomButtons;
public TweakedWebView(Context context) {
super(context);
init();
}
public TweakedWebView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public TweakedWebView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init() {
getSettings().setBuiltInZoomControls(true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
getSettings().setDisplayZoomControls(false);
} else {
try {
Method method = getClass()
.getMethod("getZoomButtonsController");
zoomButtons = (ZoomButtonsController) method.invoke(this);
} catch (Exception e) {
// pass
}
}
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
boolean result = super.onTouchEvent(ev);
if (zoomButtons != null) {
zoomButtons.setVisible(false);
zoomButtons.getZoomControls().setVisibility(View.GONE);
}
return result;
}
}
CSS properties should be set by cssText
property or setAttribute
method.
// Set multiple styles in a single statement
elt.style.cssText = "color: blue; border: 1px solid black";
// Or
elt.setAttribute("style", "color:red; border: 1px solid blue;");
Styles should not be set by assigning a string directly to the style
property (as in elt.style = "color: blue;"
), since it is considered read-only, as the style
attribute returns a CSSStyleDeclaration
object which is also read-only.
Running PHP as a CGI means that you basically tell your web server the location of the PHP executable file, and the server runs that executable
whereas
PHP FastCGI Process Manager (PHP-FPM) is an alternative FastCGI daemon for PHP that allows a website to handle strenuous loads. PHP-FPM maintains pools (workers that can respond to PHP requests) to accomplish this. PHP-FPM is faster than traditional CGI-based methods, such as SUPHP, for multi-user PHP environments
However, there are pros and cons to both and one should choose as per their specific use case.
I found info on this link for fastcgi vs fpm quite helpful in choosing which handler to use in my scenario.
This method is easy to understand and works fine. The argument to the script ($1
) is a reference (tag, hash, ...) to the commit starting from which you want to keep your history.
#!/bin/bash
git checkout --orphan temp $1 # create a new branch without parent history
git commit -m "Truncated history" # create a first commit on this branch
git rebase --onto temp $1 master # now rebase the part of master branch that we want to keep onto this branch
git branch -D temp # delete the temp branch
# The following 2 commands are optional - they keep your git repo in good shape.
git prune --progress # delete all the objects w/o references
git gc --aggressive # aggressively collect garbage; may take a lot of time on large repos
NOTE that old tags will still remain present; so you might need to remove them manually
remark: I know this is almost the same aswer as @yoyodin, but there are some important extra commands and informations here. I tried to edit the answer, but since it is a substantial change to @yoyodin's answer, my edit was rejected, so here's the information!
The value is the same even though the printed representation is not what you expect:
decimal d = (decimal )1200.00;
Console.WriteLine(Decimal.Parse("1200") == d); //True
As mentioned previously, a function needs to be passed to toThrow
as it is the function you're describing in your test: "I expect this function to throw x"
expect(() => parser.parse(raw))
.toThrow(new Error('Parsing is not possible'));
If using Jasmine-Matchers you can also use one of the following when they suit the situation;
// I just want to know that an error was
// thrown and nothing more about it
expect(() => parser.parse(raw))
.toThrowAnyError();
or
// I just want to know that an error of
// a given type was thrown and nothing more
expect(() => parser.parse(raw))
.toThrowErrorOfType(TypeError);
I prefer to use ToString()
and IFormatProvider
.
double value = 100000.3
Console.WriteLine(value.ToString("0,0.00", new CultureInfo("en-US", false)));
Output: 10,000.30
If your database supports arrays, you can also implement a lineage column or materialized path as an array of parent ids.
Specifically with Postgres you can then use the set operators to query the hierarchy, and get excellent performance with GIN indices. This makes finding parents, children, and depth pretty trivial in a single query. Updates are pretty manageable as well.
I have a full write up of using arrays for materialized paths if you're curious.
To animate layout changes, you can add the following attribute to your LinearLayout
android:animateLayoutChanges="true"
and it will animate changes automatically for you.
For information, if android:animateLayoutChanges="true"
is used, then custom animation via anim xml will not work.
I found this:
// Remove tag bottom and top margins
$tagvs = array( 'p' => array(
0 => array('h' => 0, 'n' => 0),
1 => array('h' => 0, 'n' => 0)
)
);
$pdf->setHtmlVSpace($tagvs);
in here: https://tcpdf.org/examples/example_061/
Use it to remove 'p' tags properties (bottom and top), then position the 'p' text inside a cell.
In some cases the whole need for declaring a variable can be avoided by using With
statement.
For example,
Dim fd As Office.FileDialog
Set fd = Application.FileDialog(msoFileDialogSaveAs)
If fd.Show Then
'use fd.SelectedItems(1)
End If
this can be rewritten as
With Application.FileDialog(msoFileDialogSaveAs)
If .Show Then
'use .SelectedItems(1)
End If
End With
Previous answers have defined a loop invariant in a very good way.
Following is how authors of CLRS used loop invariant to prove correctness of Insertion Sort.
Insertion Sort algorithm(as given in Book):
INSERTION-SORT(A)
for j ? 2 to length[A]
do key ? A[j]
// Insert A[j] into the sorted sequence A[1..j-1].
i ? j - 1
while i > 0 and A[i] > key
do A[i + 1] ? A[i]
i ? i - 1
A[i + 1] ? key
Loop Invariant in this case: Sub-array[1 to j-1] is always sorted.
Now let us check this and prove that algorithm is correct.
Initialization: Before the first iteration j=2. So sub-array [1:1] is the array to be tested. As it has only one element so it is sorted. Thus invariant is satisfied.
Maintenance: This can be easily verified by checking the invariant after each iteration. In this case it is satisfied.
Termination: This is the step where we will prove the correctness of the algorithm.
When the loop terminates then value of j=n+1. Again loop invariant is satisfied. This means that Sub-array[1 to n] should be sorted.
This is what we want to do with our algorithm. Thus our algorithm is correct.
Find a better use for myself: I usually test if a variant is empty, and all of the above methods fail with the test. I found that you can actually set a variant to empty:
Dim aTable As Variant
If IsEmpty(aTable) Then
'This is true
End If
ReDim aTable(2)
If IsEmpty(aTable) Then
'This is False
End If
ReDim aTable(2)
aTable = Empty
If IsEmpty(aTable) Then
'This is true
End If
ReDim aTable(2)
Erase aTable
If IsEmpty(aTable) Then
'This is False
End If
this way i get the behaviour i want
Neither code is always better. They do different things, so they are good at different things.
InvariantCultureIgnoreCase
uses comparison rules based on english, but without any regional variations. This is good for a neutral comparison that still takes into account some linguistic aspects.
OrdinalIgnoreCase
compares the character codes without cultural aspects. This is good for exact comparisons, like login names, but not for sorting strings with unusual characters like é
or ö
. This is also faster because there are no extra rules to apply before comparing.
Use either COUNT(field)
or COUNT(*)
, and stick with it consistently, and if your database allows COUNT(tableHere)
or COUNT(tableHere.*)
, use that.
In short, don't use COUNT(1)
for anything. It's a one-trick pony, which rarely does what you want, and in those rare cases is equivalent to count(*)
count(*)
for countingUse *
for all your queries that need to count everything, even for joins, use *
SELECT boss.boss_id, COUNT(subordinate.*)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
But don't use COUNT(*)
for LEFT joins, as that will return 1 even if the subordinate table doesn't match anything from parent table
SELECT boss.boss_id, COUNT(*)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
Don't be fooled by those advising that when using *
in COUNT, it fetches entire row from your table, saying that *
is slow. The *
on SELECT COUNT(*)
and SELECT *
has no bearing to each other, they are entirely different thing, they just share a common token, i.e. *
.
In fact, if it is not permitted to name a field as same as its table name, RDBMS language designer could give COUNT(tableNameHere)
the same semantics as COUNT(*)
. Example:
For counting rows we could have this:
SELECT COUNT(emp) FROM emp
And they could make it simpler:
SELECT COUNT() FROM emp
And for LEFT JOINs, we could have this:
SELECT boss.boss_id, COUNT(subordinate)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
But they cannot do that (COUNT(tableNameHere)
) since SQL standard permits naming a field with the same name as its table name:
CREATE TABLE fruit -- ORM-friendly name
(
fruit_id int NOT NULL,
fruit varchar(50), /* same name as table name,
and let's say, someone forgot to put NOT NULL */
shape varchar(50) NOT NULL,
color varchar(50) NOT NULL
)
And also, it is not a good practice to make a field nullable if its name matches the table name. Say you have values 'Banana', 'Apple', NULL, 'Pears' on fruit
field. This will not count all rows, it will only yield 3, not 4
SELECT count(fruit) FROM fruit
Though some RDBMS do that sort of principle (for counting the table's rows, it accepts table name as COUNT's parameter), this will work in Postgresql (if there is no subordinate
field in any of the two tables below, i.e. as long as there is no name conflict between field name and table name):
SELECT boss.boss_id, COUNT(subordinate)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
But that could cause confusion later if we will add a subordinate
field in the table, as it will count the field(which could be nullable), not the table rows.
So to be on the safe side, use:
SELECT boss.boss_id, COUNT(subordinate.*)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
count(1)
: The one-trick ponyIn particular to COUNT(1)
, it is a one-trick pony, it works well only on one table query:
SELECT COUNT(1) FROM tbl
But when you use joins, that trick won't work on multi-table queries without its semantics being confused, and in particular you cannot write:
-- count the subordinates that belongs to boss
SELECT boss.boss_id, COUNT(subordinate.1)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
So what's the meaning of COUNT(1) here?
SELECT boss.boss_id, COUNT(1)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
Is it this...?
-- counting all the subordinates only
SELECT boss.boss_id, COUNT(subordinate.boss_id)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
Or this...?
-- or is that COUNT(1) will also count 1 for boss regardless if boss has a subordinate
SELECT boss.boss_id, COUNT(*)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
By careful thought, you can infer that COUNT(1)
is the same as COUNT(*)
, regardless of type of join. But for LEFT JOINs result, we cannot mold COUNT(1)
to work as: COUNT(subordinate.boss_id)
, COUNT(subordinate.*)
So just use either of the following:
-- count the subordinates that belongs to boss
SELECT boss.boss_id, COUNT(subordinate.boss_id)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
Works on Postgresql, it's clear that you want to count the cardinality of the set
-- count the subordinates that belongs to boss
SELECT boss.boss_id, COUNT(subordinate.*)
FROM boss
LEFT JOIN subordinate on subordinate.boss_id = boss.boss_id
GROUP BY boss.id
Another way to count the cardinality of the set, very English-like (just don't make a column with a name same as its table name) : http://www.sqlfiddle.com/#!1/98515/7
select boss.boss_name, count(subordinate)
from boss
left join subordinate on subordinate.boss_code = boss.boss_code
group by boss.boss_name
You cannot do this: http://www.sqlfiddle.com/#!1/98515/8
select boss.boss_name, count(subordinate.1)
from boss
left join subordinate on subordinate.boss_code = boss.boss_code
group by boss.boss_name
You can do this, but this produces wrong result: http://www.sqlfiddle.com/#!1/98515/9
select boss.boss_name, count(1)
from boss
left join subordinate on subordinate.boss_code = boss.boss_code
group by boss.boss_name
I had trouble using the above, and I needed the IP address from a controller. I used the following in the end:
System.Web.HttpContext.Current.Request.UserHostAddress
If you are using Google fonts I would suggest the following.
If you want the fonts to run from your localhost or server you need to download the files.
Instead of downloading the ttf packages in the download links, use the live link they provide, for example:
http://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,300italic,400italic,600italic
Paste the URL in your browser and you should get a font-face declaration similar to the first answer.
Open the URLs provided, download and rename the files.
Stick the updated font-face declarations with relative paths to the woff files in your CSS, and you are done.
simpler:
re.findall(r'/(?!ignoreme)(\w+)', "/hello /ignoreme and /ignoreme2 /ignoreme2M.")
you will get:
['hello']
This function will do as JohnFx suggested and allow for varied lengths on the arrays
Function mergeArrays(ByVal arr1 As Variant, ByVal arr2 As Variant) As Variant
Dim holdarr As Variant
Dim ub1 As Long
Dim ub2 As Long
Dim bi As Long
Dim i As Long
Dim newind As Long
ub1 = UBound(arr1) + 1
ub2 = UBound(arr2) + 1
bi = IIf(ub1 >= ub2, ub1, ub2)
ReDim holdarr(ub1 + ub2 - 1)
For i = 0 To bi
If i < ub1 Then
holdarr(newind) = arr1(i)
newind = newind + 1
End If
If i < ub2 Then
holdarr(newind) = arr2(i)
newind = newind + 1
End If
Next i
mergeArrays = holdarr
End Function
I tried it on XP and it doesn't work if the PC is set to International time yyyy-M-d. Place a breakpoint on the line and before it is processed change the date string to use '-' in place of the '/' and you'll find it works. It makes no difference whether you have the CultureInfo or not. Seems strange to be able specify an expercted format only to have the separator ignored.
In your example propertyInfo.GetValue(this, null)
should work. Consider altering GetNamesAndTypesAndValues()
as follows:
public void GetNamesAndTypesAndValues()
{
foreach (PropertyInfo propertyInfo in allClassProperties)
{
Console.WriteLine("{0} [type = {1}] [value = {2}]",
propertyInfo.Name,
propertyInfo.PropertyType,
propertyInfo.GetValue(this, null));
}
}
If i understood correctly the easiest way is to use regular expression as it provides you lots of flexibility but the other simple method is to use for loop following is the code with example I also counted the occurrence of word and stored in dictionary..
s = """An... essay is, generally, a piece of writing that gives the author's own
argument — but the definition is vague,
overlapping with those of a paper, an article, a pamphlet, and a short story. Essays
have traditionally been
sub-classified as formal and informal. Formal essays are characterized by "serious
purpose, dignity, logical
organization, length," whereas the informal essay is characterized by "the personal
element (self-revelation,
individual tastes and experiences, confidential manner), humor, graceful style,
rambling structure, unconventionality
or novelty of theme," etc.[1]"""
d = {} # creating empty dic
words = s.split() # spliting string and stroing in list
for word in words:
new_word = ''
for c in word:
if c.isalnum(): # checking if indiviual chr is alphanumeric or not
new_word = new_word + c
print(new_word, end=' ')
# if new_word not in d:
# d[new_word] = 1
# else:
# d[new_word] = d[new_word] +1
print(d)
please rate this if this answer is useful!
The normal practice is to HTML-escape any user-controlled data during redisplaying in JSP, not during processing the submitted data in servlet nor during storing in DB. In JSP you can use the JSTL (to install it, just drop jstl-1.2.jar in /WEB-INF/lib
) <c:out>
tag or fn:escapeXml
function for this. E.g.
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
...
<p>Welcome <c:out value="${user.name}" /></p>
and
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
...
<input name="username" value="${fn:escapeXml(param.username)}">
That's it. No need for a blacklist. Note that user-controlled data covers everything which comes in by a HTTP request: the request parameters, body and headers(!!).
If you HTML-escape it during processing the submitted data and/or storing in DB as well, then it's all spread over the business code and/or in the database. That's only maintenance trouble and you will risk double-escapes or more when you do it at different places (e.g. &
would become &amp;
instead of &
so that the enduser would literally see &
instead of &
in view. The business code and DB are in turn not sensitive for XSS. Only the view is. You should then escape it only right there in view.
The thing to watch out for when writing C++ dlls is name mangling. If you want interoperability between C and C++, you'd be better off by exporting non-mangled C-style functions from within the dll.
You have two options to use a dll
LoadLibrary()
or some suitable function to load the library, retrieve a function pointer (GetProcAddress
) and call it -- runtime dynamic linkingExporting classes will not work if you follow the second method though.
where row.name.StartsWith(q, true, System.Globalization.CultureInfo.CurrentCulture)
Maybe the "K" format specifier would be of some use. This is the only one that seems to mention the use of capital "Z".
"Z" is kind of a unique case for DateTimes. The literal "Z" is actually part of the ISO 8601 datetime standard for UTC times. When "Z" (Zulu) is tacked on the end of a time, it indicates that that time is UTC, so really the literal Z is part of the time. This probably creates a few problems for the date format library in .NET, since it's actually a literal, rather than a format specifier.
In Python 3, you can¹ use the Ellipsis literal ...
as a “nop” placeholder for code that hasn't been written yet:
def will_do_something():
...
This is not magic; any expression can be used instead of ...
, e.g.:
def will_do_something():
1
(Can't use the word “sanctioned”, but I can say that this use was not outrightly rejected by Guido.)
¹ 'can' not in {'must', 'should'}
Strange, but the accepted answer seems wrong about the cast and the Convert in the mean that from my tests and reading the documentation too it should not take into account implicit or explicit operators.
So, if I have a variable of type object and the "boxed" class has some implicit operators defined they won't work.
Instead another simple way, but really performance costing is to cast before in dynamic.
(int)(dynamic)myObject.
You can try it in the Interactive window of VS.
public class Test
{
public static implicit operator int(Test v)
{
return 12;
}
}
(int)(object)new Test() //this will fail
Convert.ToInt32((object)new Test()) //this will fail
(int)(dynamic)(object)new Test() //this will pass
AFAIK, you don't need to map the UNC path to a drive letter in order to establish credentials for a server. I regularly used batch scripts like:
net use \\myserver /user:username password
:: do something with \\myserver\the\file\i\want.xml
net use /delete \\my.server.com
However, any program running on the same account as your program would still be able to access everything that username:password
has access to. A possible solution could be to isolate your program in its own local user account (the UNC access is local to the account that called NET USE
).
Note: Using SMB accross domains is not quite a good use of the technology, IMO. If security is that important, the fact that SMB lacks encryption is a bit of a damper all by itself.
Simple answer: no.
What I've done in the past is load the headings into row 0 then set the ListIndex to 0 when displaying the form. This then highlights the "headings" in blue, giving the appearance of a header. The form action buttons are ignored if the ListIndex remains at zero, so these values can never be selected.
Of course, as soon as another list item is selected, the heading loses focus, but by this time their job is done.
Doing things this way also allows you to have headings that scroll horizontally, which is difficult/impossible to do with separate labels that float above the listbox. The flipside is that the headings do not remain visible if the listbox needs to scroll vertically.
Basically, it's a compromise that works in the situations I've been in.
I would use the algorithm detailed in the bug report using System.getenv(String), and fallback to using the user.dir property if none of the environment variables indicated a valid existing directory. This should work cross-platform.
I think, under Windows, what you are really after is the user's notional "documents" directory.
Although the question is about equality, for quick visual reference, here the order of some strings sorted using a couple of cultures illustrating some of the idiosyncrasies out there.
Ordinal 0 9 A Ab a aB aa ab ss Ä Äb ß ä äb ? ? ? ? ? A
IgnoreCase 0 9 a A aa ab Ab aB ss ä Ä äb Äb ß ? ? ? ? ? A
--------------------------------------------------------------------
InvariantCulture 0 9 a A A ä Ä aa ab aB Ab äb Äb ss ß ? ? ? ? ?
IgnoreCase 0 9 A a A Ä ä aa Ab aB ab Äb äb ß ss ? ? ? ? ?
--------------------------------------------------------------------
da-DK 0 9 a A A ab aB Ab ss ß ä Ä äb Äb aa ? ? ? ? ?
IgnoreCase 0 9 A a A Ab aB ab ß ss Ä ä Äb äb aa ? ? ? ? ?
--------------------------------------------------------------------
de-DE 0 9 a A A ä Ä aa ab aB Ab äb Äb ß ss ? ? ? ? ?
IgnoreCase 0 9 A a A Ä ä aa Ab aB ab Äb äb ss ß ? ? ? ? ?
--------------------------------------------------------------------
en-US 0 9 a A A ä Ä aa ab aB Ab äb Äb ß ss ? ? ? ? ?
IgnoreCase 0 9 A a A Ä ä aa Ab aB ab Äb äb ss ß ? ? ? ? ?
--------------------------------------------------------------------
ja-JP 0 9 a A A ä Ä aa ab aB Ab äb Äb ß ss ? ? ? ? ?
IgnoreCase 0 9 A a A Ä ä aa Ab aB ab Äb äb ss ß ? ? ? ? ?
Observations:
de-DE
, ja-JP
, and en-US
sort the same wayInvariant
only sorts ss
and ß
differently from the above three culturesda-DK
sorts quite differentlyIgnoreCase
flag matters for all sampled culturesThe code used to generate above table:
var l = new List<string>
{ "0", "9", "A", "Ab", "a", "aB", "aa", "ab", "ss", "ß",
"Ä", "Äb", "ä", "äb", "?", "?", "?", "?", "A", "?" };
foreach (var comparer in new[]
{
StringComparer.Ordinal,
StringComparer.OrdinalIgnoreCase,
StringComparer.InvariantCulture,
StringComparer.InvariantCultureIgnoreCase,
StringComparer.Create(new CultureInfo("da-DK"), false),
StringComparer.Create(new CultureInfo("da-DK"), true),
StringComparer.Create(new CultureInfo("de-DE"), false),
StringComparer.Create(new CultureInfo("de-DE"), true),
StringComparer.Create(new CultureInfo("en-US"), false),
StringComparer.Create(new CultureInfo("en-US"), true),
StringComparer.Create(new CultureInfo("ja-JP"), false),
StringComparer.Create(new CultureInfo("ja-JP"), true),
})
{
l.Sort(comparer);
Console.WriteLine(string.Join(" ", l));
}
Well, firstly it should be pointed out that:
public void blah() {
synchronized (this) {
// do stuff
}
}
is semantically equivalent to:
public synchronized void blah() {
// do stuff
}
which is one reason not to use synchronized(this)
. You might argue that you can do stuff around the synchronized(this)
block. The usual reason is to try and avoid having to do the synchronized check at all, which leads to all sorts of concurrency problems, specifically the double checked-locking problem, which just goes to show how difficult it can be to make a relatively simple check threadsafe.
A private lock is a defensive mechanism, which is never a bad idea.
Also, as you alluded to, private locks can control granularity. One set of operations on an object might be totally unrelated to another but synchronized(this)
will mutually exclude access to all of them.
synchronized(this)
just really doesn't give you anything.
public static string FromSqlType(string sqlTypeString)
{
if (! Enum.TryParse(sqlTypeString, out Enums.SQLType typeCode))
{
throw new Exception("sql type not found");
}
switch (typeCode)
{
case Enums.SQLType.varbinary:
case Enums.SQLType.binary:
case Enums.SQLType.filestream:
case Enums.SQLType.image:
case Enums.SQLType.rowversion:
case Enums.SQLType.timestamp://?
return "byte[]";
case Enums.SQLType.tinyint:
return "byte";
case Enums.SQLType.varchar:
case Enums.SQLType.nvarchar:
case Enums.SQLType.nchar:
case Enums.SQLType.text:
case Enums.SQLType.ntext:
case Enums.SQLType.xml:
return "string";
case Enums.SQLType.@char:
return "char";
case Enums.SQLType.bigint:
return "long";
case Enums.SQLType.bit:
return "bool";
case Enums.SQLType.smalldatetime:
case Enums.SQLType.datetime:
case Enums.SQLType.date:
case Enums.SQLType.datetime2:
return "DateTime";
case Enums.SQLType.datetimeoffset:
return "DateTimeOffset";
case Enums.SQLType.@decimal:
case Enums.SQLType.money:
case Enums.SQLType.numeric:
case Enums.SQLType.smallmoney:
return "decimal";
case Enums.SQLType.@float:
return "double";
case Enums.SQLType.@int:
return "int";
case Enums.SQLType.real:
return "Single";
case Enums.SQLType.smallint:
return "short";
case Enums.SQLType.uniqueidentifier:
return "Guid";
case Enums.SQLType.sql_variant:
return "object";
case Enums.SQLType.time:
return "TimeSpan";
default:
throw new Exception("none equal type");
}
}
public enum SQLType
{
varbinary,//(1)
binary,//(1)
image,
varchar,
@char,
nvarchar,//(1)
nchar,//(1)
text,
ntext,
uniqueidentifier,
rowversion,
bit,
tinyint,
smallint,
@int,
bigint,
smallmoney,
money,
numeric,
@decimal,
real,
@float,
smalldatetime,
datetime,
sql_variant,
table,
cursor,
timestamp,
xml,
date,
datetime2,
datetimeoffset,
filestream,
time,
}
Since MySQL (8.0.16) and MariaDB (10.2.1) both implemented the CHECK constraint, I would now use
bool_val TINYINT CHECK(bool_val IN(0,1))
You will only be able to store 0
, 1
or NULL
, as well as values which can be converted to 0
or 1
without errors like '1'
, 0x00
, b'1'
or TRUE
/FALSE
.
If you don't want to permit NULLs, add the NOT NULL
option
bool_val TINYINT NOT NULL CHECK(bool_val IN(0,1))
Note that there is virtually no difference if you use TINYINT
, TINYINT(1)
or TINYINT(123)
.
If you want your schema to be upwards compatible, you can also use BOOL
or BOOLEAN
bool_val BOOL CHECK(bool_val IN(TRUE,FALSE))
TheSoftwareJedi already mentioned the for command, but I'm going to mention it again as it is very powerful.
The following outputs the current date in the format YYYYMMDD, I use this when generating directories for backups.
for /f "tokens=2-4 delims=/- " %a in ('DATE/T') do echo %c%b%a
I find grepping grep's output to be very helpful sometimes:
grep -rn "foo=" . | grep -v "Binary file"
Though, that doesn't actually stop it from searching the binary files.
You can check if the array is empty by retrieving total elements count using JScript's VBArray()
object (works with arrays of variant type, single or multidimensional):
Sub Test()
Dim a() As Variant
Dim b As Variant
Dim c As Long
' Uninitialized array of variant
' MsgBox UBound(a) ' gives 'Subscript out of range' error
MsgBox GetElementsCount(a) ' 0
' Variant containing an empty array
b = Array()
MsgBox GetElementsCount(b) ' 0
' Any other types, eg Long or not Variant type arrays
MsgBox GetElementsCount(c) ' -1
End Sub
Function GetElementsCount(aSample) As Long
Static oHtmlfile As Object ' instantiate once
If oHtmlfile Is Nothing Then
Set oHtmlfile = CreateObject("htmlfile")
oHtmlfile.parentWindow.execScript ("function arrlength(arr) {try {return (new VBArray(arr)).toArray().length} catch(e) {return -1}}"), "jscript"
End If
GetElementsCount = oHtmlfile.parentWindow.arrlength(aSample)
End Function
For me it takes about 0.3 mksec for each element + 15 msec initialization, so the array of 10M elements takes about 3 sec. The same functionality could be implemented via ScriptControl
ActiveX (it is not available in 64-bit MS Office versions, so you can use workaround like this).
Shouln't this be threadsafe and avoid the expensive locking after the first call?
+ (MySingleton*)sharedInstance
{
if (sharedInstance == nil) {
@synchronized(self) {
if (sharedInstance == nil) {
sharedInstance = [[MySingleton alloc] init];
}
}
}
return (MySingleton *)sharedInstance;
}
On the data dictionary side there are a lot of tools you can use to such as Schema Spy
To look at what queries are running look at views sys.v_$sql and sys.v_$sqltext. You will also need access to sys.all_users
One thing to note that queries that use parameters will show up once with entries like
and TABLETYPE=’:b16’
while others that dont will show up multiple times such as:
and TABLETYPE=’MT’
An example of these tables in action is the following SQL to find the top 20 diskread hogs. You could change this by removing the WHERE rownum <= 20 and maybe add ORDER BY module. You often find the module will give you a bog clue as to what software is running the query (eg: "TOAD 9.0.1.8", "JDBC Thin Client", "runcbl@somebox (TNS V1-V3)" etc)
SELECT
module,
sql_text,
username,
disk_reads_per_exec,
buffer_gets,
disk_reads,
parse_calls,
sorts,
executions,
rows_processed,
hit_ratio,
first_load_time,
sharable_mem,
persistent_mem,
runtime_mem,
cpu_time,
elapsed_time,
address,
hash_value
FROM
(SELECT
module,
sql_text ,
u.username ,
round((s.disk_reads/decode(s.executions,0,1, s.executions)),2) disk_reads_per_exec,
s.disk_reads ,
s.buffer_gets ,
s.parse_calls ,
s.sorts ,
s.executions ,
s.rows_processed ,
100 - round(100 * s.disk_reads/greatest(s.buffer_gets,1),2) hit_ratio,
s.first_load_time ,
sharable_mem ,
persistent_mem ,
runtime_mem,
cpu_time,
elapsed_time,
address,
hash_value
FROM
sys.v_$sql s,
sys.all_users u
WHERE
s.parsing_user_id=u.user_id
and UPPER(u.username) not in ('SYS','SYSTEM')
ORDER BY
4 desc)
WHERE
rownum <= 20;
Note that if the query is long .. you will have to query v_$sqltext. This stores the whole query. You will have to look up the ADDRESS and HASH_VALUE and pick up all the pieces. Eg:
SELECT
*
FROM
sys.v_$sqltext
WHERE
address = 'C0000000372B3C28'
and hash_value = '1272580459'
ORDER BY
address, hash_value, command_type, piece
;
CPU usage isn't straightforward -- java.lang.management via com.sun.management.OperatingSystemMXBean.getProcessCpuTime comes close (see Patrick's excellent code snippet above) but note that it only gives access to time the CPU spent in your process. it won't tell you about CPU time spent in other processes, or even CPU time spent doing system activities related to your process.
for instance i have a network-intensive java process -- it's the only thing running and the CPU is at 99% but only 55% of that is reported as "processor CPU".
don't even get me started on "load average" as it's next to useless, despite being the only cpu-related item on the MX bean. if only sun in their occasional wisdom exposed something like "getTotalCpuTime"...
for serious CPU monitoring SIGAR mentioned by Matt seems the best bet.
1st Method using the new channel
ReadableByteChannel aq = Channels.newChannel(new url("https//asd/abc.txt").openStream());
FileOutputStream fileOS = new FileOutputStream("C:Users/local/abc.txt")
FileChannel writech = fileOS.getChannel();
2nd Method using FileUtils
FileUtils.copyURLToFile(new url("https//asd/abc.txt",new local file on system("C":/Users/system/abc.txt"));
3rd Method using
InputStream xy = new ("https//asd/abc.txt").openStream();
This is how we can download file by using basic java code and other third-party libraries. These are just for quick reference. Please google with the above keywords to get detailed information and other options.
\includegraphics<1>{A}%
\includegraphics<2>{B}%
\includegraphics<3>{C}%
The % is important. This will keep all the images fixed.
Try like this: server.bind(("0.0.0.0", 6677))
Sometimes it's just better to use an iterator.
(Allegedly, "85%" of the requests for an index in the posh for loop is for implementing a String
join method (which you can easily do without).)
Do not forget that you also can pass these use
variables by reference.
The use cases are when you need to change the use
'd variable from inside of your callback (e.g. produce the new array of different objects from some source array of objects).
$sourcearray = [ (object) ['a' => 1], (object) ['a' => 2]];
$newarray = [];
array_walk($sourcearray, function ($item) use (&$newarray) {
$newarray[] = (object) ['times2' => $item->a * 2];
});
var_dump($newarray);
Now $newarray
will comprise (pseudocode here for brevity) [{times2:2},{times2:4}]
.
On the contrary, using $newarray
with no &
modifier would make outer $newarray
variable be read-only accessible from within the closure scope. But $newarray
within closure scope would be a completelly different newly created variable living only within the closure scope.
Despite both variables' names are the same these would be two different variables. The outer $newarray
variable would comprise []
in this case after the code has finishes.
function isNumber(value: string | number): boolean
{
return ((value != null) &&
(value !== '') &&
!isNaN(Number(value.toString())));
}
Lets take a look at example advanced diff from git history (in commit 1088261f in git.git repository):
diff --git a/builtin-http-fetch.c b/http-fetch.c
similarity index 95%
rename from builtin-http-fetch.c
rename to http-fetch.c
index f3e63d7..e8f44ba 100644
--- a/builtin-http-fetch.c
+++ b/http-fetch.c
@@ -1,8 +1,9 @@
#include "cache.h"
#include "walker.h"
-int cmd_http_fetch(int argc, const char **argv, const char *prefix)
+int main(int argc, const char **argv)
{
+ const char *prefix;
struct walker *walker;
int commits_on_stdin = 0;
int commits;
@@ -18,6 +19,8 @@ int cmd_http_fetch(int argc, const char **argv, const char *prefix)
int get_verbosely = 0;
int get_recover = 0;
+ prefix = setup_git_directory();
+
git_config(git_default_config, NULL);
while (arg < argc && argv[arg][0] == '-') {
Lets analyze this patch line by line.
The first line
diff --git a/builtin-http-fetch.c b/http-fetch.cis a "git diff" header in the form
diff --git a/file1 b/file2
. The a/
and b/
filenames are the same unless rename/copy is involved (like in our case). The --git
is to mean that diff is in the "git" diff format.Next are one or more extended header lines. The first three
similarity index 95% rename from builtin-http-fetch.c rename to http-fetch.ctell us that the file was renamed from
builtin-http-fetch.c
to http-fetch.c
and that those two files are 95% identical (which was used to detect this rename).index f3e63d7..e8f44ba 100644tell us about mode of given file (
100644
means that it is ordinary file and not e.g. symlink, and that it doesn't have executable permission bit), and about shortened hash of preimage (the version of file before given change) and postimage (the version of file after change). This line is used by git am --3way
to try to do a 3-way merge if patch cannot be applied itself.Next is two-line unified diff header
--- a/builtin-http-fetch.c +++ b/http-fetch.cCompared to
diff -U
result it doesn't have from-file-modification-time nor to-file-modification-time after source (preimage) and destination (postimage) file names. If file was created the source is /dev/null
; if file was deleted, the target is /dev/null
.diff.mnemonicPrefix
configuration variable to true, in place of a/
and b/
prefixes in this two-line header you can have instead c/
, i/
, w/
and o/
as prefixes, respectively to what you compare; see git-config(1)Next come one or more hunks of differences; each hunk shows one area where the files differ. Unified format hunks starts with line like
@@ -1,8 +1,9 @@or
@@ -18,6 +19,8 @@ int cmd_http_fetch(int argc, const char **argv, ...It is in the format
@@ from-file-range to-file-range @@ [header]
. The from-file-range is in the form -<start line>,<number of lines>
, and to-file-range is +<start line>,<number of lines>
. Both start-line and number-of-lines refer to position and length of hunk in preimage and postimage, respectively. If number-of-lines not shown it means that it is 0.
The optional header shows the C function where each change occurs, if it is a C file (like -p
option in GNU diff), or the equivalent, if any, for other types of files.
Next comes the description of where files differ. The lines common to both files begin with a space character. The lines that actually differ between the two files have one of the following indicator characters in the left print column:
So, for example, first chunk
#include "cache.h"
#include "walker.h"
-int cmd_http_fetch(int argc, const char **argv, const char *prefix)
+int main(int argc, const char **argv)
{
+ const char *prefix;
struct walker *walker;
int commits_on_stdin = 0;
int commits;
means that cmd_http_fetch
was replaced by main
, and that const char *prefix;
line was added.
In other words, before the change, the appropriate fragment of then 'builtin-http-fetch.c' file looked like this:
#include "cache.h"
#include "walker.h"
int cmd_http_fetch(int argc, const char **argv, const char *prefix)
{
struct walker *walker;
int commits_on_stdin = 0;
int commits;
After the change this fragment of now 'http-fetch.c' file looks like this instead:
#include "cache.h"
#include "walker.h"
int main(int argc, const char **argv)
{
const char *prefix;
struct walker *walker;
int commits_on_stdin = 0;
int commits;
There might be
\ No newline at end of fileline present (it is not in example diff).
As Donal Fellows said it is best to practice reading diffs on real-life examples, where you know what you have changed.
References:
Use the "has attribute" selector:
$('p[MyTag]')
Or to select one where that attribute has a specific value:
$('p[MyTag="Sara"]')
There are other selectors for "attribute value starts with", "attribute value contains", etc.
Update : In angular 7, they are the same as 6
In angular 6
the complete answer found in live example
/** POST: add a new hero to the database */
addHero (hero: Hero): Observable<Hero> {
return this.http.post<Hero>(this.heroesUrl, hero, httpOptions)
.pipe(
catchError(this.handleError('addHero', hero))
);
}
/** GET heroes from the server */
getHeroes (): Observable<Hero[]> {
return this.http.get<Hero[]>(this.heroesUrl)
.pipe(
catchError(this.handleError('getHeroes', []))
);
}
it's because of pipeable/lettable operators
which now angular is able to use tree-shakable
and remove unused imports and optimize the app
some rxjs functions are changed
do -> tap
catch -> catchError
switch -> switchAll
finally -> finalize
more in MIGRATION
and Import paths
For JavaScript developers, the general rule is as follows:
rxjs: Creation methods, types, schedulers and utilities
import { Observable, Subject, asapScheduler, pipe, of, from, interval, merge, fromEvent } from 'rxjs';
rxjs/operators: All pipeable operators:
import { map, filter, scan } from 'rxjs/operators';
rxjs/webSocket: The web socket subject implementation
import { webSocket } from 'rxjs/webSocket';
rxjs/ajax: The Rx ajax implementation
import { ajax } from 'rxjs/ajax';
rxjs/testing: The testing utilities
import { TestScheduler } from 'rxjs/testing';
and for backward compatability you can use rxjs-compat
Assgining a value that starts with a "=" will kick in formula evaluation and gave in my case the above mentioned error #1004. Prepending it with a space was the ticket for me.
You can access the inactive tags array with (assuming $myArray contains the array)
$myArray['inactiveTags'];
Your question doesn't seem to go beyond accessing the contents of the inactiveTags key so I can only speculate with what your final goal is.
The first key:value pair in the inactiveTags array is
array ('195' => array(
'id' => 195,
'tag' => 'auto')
)
To access the tag value, you would use
$myArray['inactiveTags'][195]['tag']; // auto
If you want to loop through each inactiveTags element, I would suggest:
foreach($myArray['inactiveTags'] as $value) {
print $value['id'];
print $value['tag'];
}
This will print all the id and tag values for each inactiveTag
Edit:: For others to see, here is a var_dump of the array provided in the question since it has not readible
array 'languages' => array 76 => array 'id' => string '76' (length=2) 'tag' => string 'Deutsch' (length=7) 'targets' => array 81 => array 'id' => string '81' (length=2) 'tag' => string 'Deutschland' (length=11) 'tags' => array 7866 => array 'id' => string '7866' (length=4) 'tag' => string 'automobile' (length=10) 17800 => array 'id' => string '17800' (length=5) 'tag' => string 'seat leon' (length=9) 17801 => array 'id' => string '17801' (length=5) 'tag' => string 'seat leon cupra' (length=15) 'inactiveTags' => array 195 => array 'id' => string '195' (length=3) 'tag' => string 'auto' (length=4) 17804 => array 'id' => string '17804' (length=5) 'tag' => string 'coupès' (length=6) 17805 => array 'id' => string '17805' (length=5) 'tag' => string 'fahrdynamik' (length=11) 901 => array 'id' => string '901' (length=3) 'tag' => string 'fahrzeuge' (length=9) 17802 => array 'id' => string '17802' (length=5) 'tag' => string 'günstige neuwagen' (length=17) 1991 => array 'id' => string '1991' (length=4) 'tag' => string 'motorsport' (length=10) 2154 => array 'id' => string '2154' (length=4) 'tag' => string 'neuwagen' (length=8) 10660 => array 'id' => string '10660' (length=5) 'tag' => string 'seat' (length=4) 17803 => array 'id' => string '17803' (length=5) 'tag' => string 'sportliche ausstrahlung' (length=23) 74 => array 'id' => string '74' (length=2) 'tag' => string 'web 2.0' (length=7) 'categories' => array 16082 => array 'id' => string '16082' (length=5) 'tag' => string 'Auto & Motorrad' (length=15) 51 => array 'id' => string '51' (length=2) 'tag' => string 'Blogosphäre' (length=11) 66 => array 'id' => string '66' (length=2) 'tag' => string 'Neues & Trends' (length=14) 68 => array 'id' => string '68' (length=2) 'tag' => string 'Privat' (length=6)
Added simple code to save with readable date-time stamp.
Use sync2pst to sync all your data in outlook with all your devices, work like this:
Use ONLY ONE PST-file for all your accounts, make folders, subfolders and so ...
in VBA: refer to 'microsoft scripting runtime
'extra/references...'
here's the code
Private Sub Application_NewMail()
SaveAttachments
End Sub
Public Sub SaveAttachments()
Dim objOL As Outlook.Application
Dim objMsg As Outlook.MailItem 'Object
Dim objAttachments As Outlook.Attachments
Dim objSelection As Outlook.Selection
Dim i As Long
Dim lngCount As Long
Dim strFile As String
Dim strFolderpath As String
Dim strDeletedFiles As String
Dim fs As FileSystemObject
' Get the path to your My Documents folder
strFolderpath = CreateObject("WScript.Shell").SpecialFolders(16)
On Error Resume Next
' Instantiate an Outlook Application object.
Set objOL = CreateObject("Outlook.Application")
' Get the collection of selected objects.
Set objSelection = objOL.ActiveExplorer.Selection
' Set the Attachment folder.
strFolderpath = "F:\SkyDrive\Attachments\"
' Check each selected item for attachments. If attachments exist,
' save them to the strFolderPath folder and strip them from the item.
For Each objMsg In objSelection
' This code only strips attachments from mail items.
' If objMsg.class=olMail Then
' Get the Attachments collection of the item.
Set objAttachments = objMsg.Attachments
lngCount = objAttachments.Count
strDeletedFiles = ""
If lngCount > 0 Then
' We need to use a count down loop for removing items
' from a collection. Otherwise, the loop counter gets
' confused and only every other item is removed.
Set fs = New FileSystemObject
For i = lngCount To 1 Step -1
' Save attachment before deleting from item.
' Get the file name.
strFile = Left(objAttachments.Item(i).FileName, Len(objAttachments.Item(i).FileName) - 4) + "_" + Right("00" + Trim(Str$(Day(Now))), 2) + "_" + Right("00" + Trim(Str$(Month(Now))), 2) + "_" + Right("0000" + Trim(Str$(Year(Now))), 4) + "_" + Right("00" + Trim(Str$(Hour(Now))), 2) + "_" + Right("00" + Trim(Str$(Minute(Now))), 2) + "_" + Right("00" + Trim(Str$(Second(Now))), 2) + Right((objAttachments.Item(i).FileName), 4)
' Combine with the path to the Temp folder.
strFile = strFolderpath & strFile
' Save the attachment as a file.
objAttachments.Item(i).SaveAsFile strFile
' Delete the attachment.
objAttachments.Item(i).Delete
'write the save as path to a string to add to the message
'check for html and use html tags in link
If objMsg.BodyFormat <> olFormatHTML Then
strDeletedFiles = strDeletedFiles & vbCrLf & "<file://" & strFile & ">"
Else
strDeletedFiles = strDeletedFiles & "<br>" & "<a href='file://" & _
strFile & "'>" & strFile & "</a>"
End If
'Use the MsgBox command to troubleshoot. Remove it from the final code.
'MsgBox strDeletedFiles
Next i
' Adds the filename string to the message body and save it
' Check for HTML body
If objMsg.BodyFormat <> olFormatHTML Then
objMsg.Body = vbCrLf & "The file(s) were saved to " & strDeletedFiles & vbCrLf & objMsg.Body
Else
objMsg.HTMLBody = "<p>" & "The file(s) were saved to " & strDeletedFiles & "</p>" & objMsg.HTMLBody
End If
objMsg.Save
End If
Next
ExitSub:
Set objAttachments = Nothing
Set objMsg = Nothing
Set objSelection = Nothing
Set objOL = Nothing
End Sub
Edited: Fixed mistake in code that stopped it working if there were no
YourModel
entries in the db.
There's a lot of mention of how you should use an AutoField, and of course, where possible you should use that.
However there are legitimate reasons for implementing auto-incrementing fields yourself (such as if you need an id to start from 500 or increment by tens for whatever reason).
In your models.py
from django.db import models
def from_500():
'''
Returns the next default value for the `ones` field,
starts from 500
'''
# Retrieve a list of `YourModel` instances, sort them by
# the `ones` field and get the largest entry
largest = YourModel.objects.all().order_by('ones').last()
if not largest:
# largest is `None` if `YourModel` has no instances
# in which case we return the start value of 500
return 500
# If an instance of `YourModel` is returned, we get it's
# `ones` attribute and increment it by 1
return largest.ones + 1
def add_ten():
''' Returns the next default value for the `tens` field'''
# Retrieve a list of `YourModel` instances, sort them by
# the `tens` field and get the largest entry
largest = YourModel.objects.all().order_by('tens').last()
if not largest:
# largest is `None` if `YourModel` has no instances
# in which case we return the start value of 10
return 10
# If an instance of `YourModel` is returned, we get it's
# `tens` attribute and increment it by 10
return largest.tens + 10
class YourModel(model.Model):
ones = models.IntegerField(primary_key=True,
default=from_500)
tens = models.IntegerField(default=add_ten)
try this
import tensorflow as tf
tf.compat.v1.disable_eager_execution()
hello = tf.constant('Hello, TensorFlow!')
sess = tf.compat.v1.Session()
print(sess.run(hello))
curl -s http://google.com > temp.html
works for curl version 7.19.5 on Ubuntu 9.10 (no progress bar). But if for some reason that does not work on your platform, you could always redirect stderr to /dev/null:
curl http://google.com 2>/dev/null > temp.html
The answer (I hope) no one ever wanted
Eval like behavior
getattr(locals().get("foo") or globals().get("foo"), "bar")()
Why not add auto-importing
getattr(
locals().get("foo") or
globals().get("foo") or
__import__("foo"),
"bar")()
In case we have extra dictionaries we want to check
getattr(next((x for x in (f("foo") for f in
[locals().get, globals().get,
self.__dict__.get, __import__])
if x)),
"bar")()
We need to go deeper
getattr(next((x for x in (f("foo") for f in
([locals().get, globals().get, self.__dict__.get] +
[d.get for d in (list(dd.values()) for dd in
[locals(),globals(),self.__dict__]
if isinstance(dd,dict))
if isinstance(d,dict)] +
[__import__]))
if x)),
"bar")()
The Best Way I Can Use My Project.Use hasOwnProperty
in Tricky Way!.
var arr = []; (or) arr = new Array();
var obj = {}; (or) arr = new Object();
arr.constructor.prototype.hasOwnProperty('push') //true (This is an Array)
obj.constructor.prototype.hasOwnProperty('push') // false (This is an Object)
You can do that way on a dict, not on a list. In a list elements are in sequence. In a dict they depend only on the index.
Simple code just to explain it by doing:
>>> lst = ['a','b','c']
>>> dct = {0: 'a', 1: 'b', 2:'c'}
>>> lst[0]
'a'
>>> dct[0]
'a'
>>> del lst[0]
>>> del dct[0]
>>> lst[0]
'b'
>>> dct[0]
Traceback (most recent call last):
File "<pyshell#19>", line 1, in <module>
dct[0]
KeyError: 0
>>> dct[1]
'b'
>>> lst[1]
'c'
A way to "convert" a list in a dict is:
>>> dct = {}
>>> for i in xrange(0,len(lst)): dct[i] = lst[i]
The inverse is:
lst = [dct[i] for i in sorted(dct.keys())]
Anyway I think it's better to start deleting from the higher index as you said.
Well, what do you try to do? If you want to use division, use "/" not "\". If it is something else, explain it in a bit more detail, please.
Comparison of different approaches to set exact image sizes in pixels
This answer will focus on:
savefig
Here is a quick comparison of some of the approaches I've tried with images showing what the give.
Baseline example without trying to set the image dimensions
Just to have a comparison point:
base.py
#!/usr/bin/env python3
import sys
import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl
fig, ax = plt.subplots()
print('fig.dpi = {}'.format(fig.dpi))
print('fig.get_size_inches() = ' + str(fig.get_size_inches())
t = np.arange(-10., 10., 1.)
plt.plot(t, t, '.')
plt.plot(t, t**2, '.')
ax.text(0., 60., 'Hello', fontdict=dict(size=25))
plt.savefig('base.png', format='png')
run:
./base.py
identify base.png
outputs:
fig.dpi = 100.0
fig.get_size_inches() = [6.4 4.8]
base.png PNG 640x480 640x480+0+0 8-bit sRGB 13064B 0.000u 0:00.000
My best approach so far: plt.savefig(dpi=h/fig.get_size_inches()[1]
height-only control
I think this is what I'll go with most of the time, as it is simple and scales:
get_size.py
#!/usr/bin/env python3
import sys
import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl
height = int(sys.argv[1])
fig, ax = plt.subplots()
t = np.arange(-10., 10., 1.)
plt.plot(t, t, '.')
plt.plot(t, t**2, '.')
ax.text(0., 60., 'Hello', fontdict=dict(size=25))
plt.savefig(
'get_size.png',
format='png',
dpi=height/fig.get_size_inches()[1]
)
run:
./get_size.py 431
outputs:
get_size.png PNG 574x431 574x431+0+0 8-bit sRGB 10058B 0.000u 0:00.000
and
./get_size.py 1293
outputs:
main.png PNG 1724x1293 1724x1293+0+0 8-bit sRGB 46709B 0.000u 0:00.000
I tend to set just the height because I'm usually most concerned about how much vertical space the image is going to take up in the middle of my text.
plt.savefig(bbox_inches='tight'
changes image size
I always feel that there is too much white space around images, and tended to add bbox_inches='tight'
from:
Removing white space around a saved image in matplotlib
However, that works by cropping the image, and you won't get the desired sizes with it.
Instead, this other approach proposed in the same question seems to work well:
plt.tight_layout(pad=1)
plt.savefig(...
which gives the exact desired height for height equals 431:
Fixed height, set_aspect
, automatically sized width and small margins
Ermmm, set_aspect
messes things up again and prevents plt.tight_layout
from actually removing the margins...
plt.savefig(dpi=h/fig.get_size_inches()[1]
+ width control
If you really need a specific width in addition to height, this seems to work OK:
width.py
#!/usr/bin/env python3
import sys
import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl
h = int(sys.argv[1])
w = int(sys.argv[2])
fig, ax = plt.subplots()
wi, hi = fig.get_size_inches()
fig.set_size_inches(hi*(w/h), hi)
t = np.arange(-10., 10., 1.)
plt.plot(t, t, '.')
plt.plot(t, t**2, '.')
ax.text(0., 60., 'Hello', fontdict=dict(size=25))
plt.savefig(
'width.png',
format='png',
dpi=h/hi
)
run:
./width.py 431 869
output:
width.png PNG 869x431 869x431+0+0 8-bit sRGB 10965B 0.000u 0:00.000
and for a small width:
./width.py 431 869
output:
width.png PNG 211x431 211x431+0+0 8-bit sRGB 6949B 0.000u 0:00.000
So it does seem that fonts are scaling correctly, we just get some trouble for very small widths with labels getting cut off, e.g. the 100
on the top left.
I managed to work around those with Removing white space around a saved image in matplotlib
plt.tight_layout(pad=1)
which gives:
width.png PNG 211x431 211x431+0+0 8-bit sRGB 7134B 0.000u 0:00.000
From this, we also see that tight_layout
removes a lot of the empty space at the top of the image, so I just generally always use it.
Fixed magic base height, dpi
on fig.set_size_inches
and plt.savefig(dpi=
scaling
I believe that this is equivalent to the approach mentioned at: https://stackoverflow.com/a/13714720/895245
magic.py
#!/usr/bin/env python3
import sys
import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl
magic_height = 300
w = int(sys.argv[1])
h = int(sys.argv[2])
dpi = 80
fig, ax = plt.subplots(dpi=dpi)
fig.set_size_inches(magic_height*w/(h*dpi), magic_height/dpi)
t = np.arange(-10., 10., 1.)
plt.plot(t, t, '.')
plt.plot(t, t**2, '.')
ax.text(0., 60., 'Hello', fontdict=dict(size=25))
plt.savefig(
'magic.png',
format='png',
dpi=h/magic_height*dpi,
)
run:
./magic.py 431 231
outputs:
magic.png PNG 431x231 431x231+0+0 8-bit sRGB 7923B 0.000u 0:00.000
And to see if it scales nicely:
./magic.py 1291 693
outputs:
magic.png PNG 1291x693 1291x693+0+0 8-bit sRGB 25013B 0.000u 0:00.000
So we see that this approach also does work well. The only problem I have with it is that you have to set that magic_height
parameter or equivalent.
Fixed DPI + set_size_inches
This approach gave a slightly wrong pixel size, and it makes it is hard to scale everything seamlessly.
set_size_inches.py
#!/usr/bin/env python3
import sys
import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl
w = int(sys.argv[1])
h = int(sys.argv[2])
fig, ax = plt.subplots()
fig.set_size_inches(w/fig.dpi, h/fig.dpi)
t = np.arange(-10., 10., 1.)
plt.plot(t, t, '.')
plt.plot(t, t**2, '.')
ax.text(
0,
60.,
'Hello',
# Keep font size fixed independently of DPI.
# https://stackoverflow.com/questions/39395616/matplotlib-change-figsize-but-keep-fontsize-constant
fontdict=dict(size=10*h/fig.dpi),
)
plt.savefig(
'set_size_inches.png',
format='png',
)
run:
./set_size_inches.py 431 231
outputs:
set_size_inches.png PNG 430x231 430x231+0+0 8-bit sRGB 8078B 0.000u 0:00.000
so the height is slightly off, and the image:
The pixel sizes are also correct if I make it 3 times larger:
./set_size_inches.py 1291 693
outputs:
set_size_inches.png PNG 1291x693 1291x693+0+0 8-bit sRGB 19798B 0.000u 0:00.000
We understand from this however that for this approach to scale nicely, you need to make every DPI-dependant setting proportional to the size in inches.
In the previous example, we only made the "Hello" text proportional, and it did retain its height between 60 and 80 as we'd expect. But everything for which we didn't do that, looks tiny, including:
SVG
I could not find how to set it for SVG images, my approaches only worked for PNG e.g.:
get_size_svg.py
#!/usr/bin/env python3
import sys
import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl
height = int(sys.argv[1])
fig, ax = plt.subplots()
t = np.arange(-10., 10., 1.)
plt.plot(t, t, '.')
plt.plot(t, t**2, '.')
ax.text(0., 60., 'Hello', fontdict=dict(size=25))
plt.savefig(
'get_size_svg.svg',
format='svg',
dpi=height/fig.get_size_inches()[1]
)
run:
./get_size_svg.py 431
and the generated output contains:
<svg height="345.6pt" version="1.1" viewBox="0 0 460.8 345.6" width="460.8pt"
and identify says:
get_size_svg.svg SVG 614x461 614x461+0+0 8-bit sRGB 17094B 0.000u 0:00.000
and if I open it in Chromium 86 the browser debug tools mouse image hover confirm that height as 460.79.
But of course, since SVG is a vector format, everything should in theory scale, so you can just convert to any fixed sized format without loss of resolution, e.g.:
inkscape -h 431 get_size_svg.svg -b FFF -e get_size_svg.png
gives the exact height:
I use Inkscape instead of Imagemagick's convert
here because you need to mess with -density
as well to get sharp SVG resizes with ImageMagick:
And setting <img height=""
on the HTML should also just work for the browser.
Tested on matplotlib==3.2.2.
just .idea/
works fine for me
sudo apt-get update
OpenGL: sudo apt-get install libglu1-mesa-dev freeglut3-dev mesa-common-dev
Locate your Visual Studio folder for where it puts libraries and also header files, download and copy lib files to lib folder and header files to header. Then copy dll files to system32. Then your code will 100% run.
Also Windows: For all of those includes you just need to download glut32.lib
, glut.h
, glut32.dll
.
This code takes number of row and column from user then takes elements and displays as a matrix.
m = int(input('number of rows, m : '))
n = int(input('number of columns, n : '))
a=[]
for i in range(1,m+1):
b = []
print("{0} Row".format(i))
for j in range(1,n+1):
b.append(int(input("{0} Column: " .format(j))))
a.append(b)
print(a)
With support of default methods in interface since launch of Java 8, the gap between interface and abstract classes has been reduced but still they have major differences.
Variables in interface are public static final. But abstract class can have other type of variables like private, protected etc
Methods in interface are public or public static but methods in abstract class can be private and protected too
Use abstract class to establish relation between interrelated objects. Use interface to establish relation between unrelated classes.
Have a look at this article for special properties of interface in java 8. static modifier for default methods in interface causes compile time error in derived error if you want to use @override.
This article explains why default methods have been introduced in java 8 : To enhance the Collections API in Java 8 to support lambda expressions.
Have a look at oracle documentation too to understand the differences in better way.
Have a look at this related SE questions with code example to understand things in better way:
How should I have explained the difference between an Interface and an Abstract class?
You will also receive this error if you are passing an object back to the client that contains a property of type enum that is not set by default and that enum does not have a value that maps to 0. i.e enum MyEnum{ a=1, b=2};
There are several other ways, besides using the in
operator (easiest):
index()
>>> try:
... "xxxxABCDyyyy".index("test")
... except ValueError:
... print "not found"
... else:
... print "found"
...
not found
find()
>>> if "xxxxABCDyyyy".find("ABCD") != -1:
... print "found"
...
found
re
>>> import re
>>> if re.search("ABCD" , "xxxxABCDyyyy"):
... print "found"
...
found
I use a percentage method to achieve
border: 3px solid rgb(1, 1, 1);
border-top-left-radius: 100% 200%;
border-top-right-radius: 100% 200%;
HashSet: Unordered actually. if u passing the parameter means
Set<Integer> set=new HashSet<Integer>();
for(int i=0;i<set.length;i++)
{
SOP(set)`enter code here`
}
Out Put:
May be 2,1,3
not predictable. next time another order.
LinkedHashSet()
which produce FIFO Order.
This method seems ok in all browsers, if you set the onclick with a jQuery event:
<a href="javascript:;">Click me!</a>
As said before, href="#" with change the url hash and can trigger data re/load if you use a History (or ba-bbq) JS plugin.
You can't control the timeout due to UnknownHostException
. These are DNS timings. You can only control the connect timeout given a valid host. None of the preceding answers addresses this point correctly.
But I find it hard to believe that you are really getting an UnknownHostException
when you specify an IP address rather than a hostname.
EDIT To control Java's DNS timeouts see this answer.
$('#id option').remove();
This will clear the Drop Down list. if you want to clear to select value then $("#id option:selected").remove();
References are not pointers.
8.3.2/1:
A reference shall be initialized to refer to a valid object or function. [Note: in particular, a null reference cannot exist in a well-defined program, because the only way to create such a reference would be to bind it to the “object” obtained by dereferencing a null pointer, which causes undefined behavior. As described in 9.6, a reference cannot be bound directly to a bit-field. ]
1.9/4:
Certain other operations are described in this International Standard as undefined (for example, the effect of dereferencing the null pointer)
As Johannes says in a deleted answer, there's some doubt whether "dereferencing a null pointer" should be categorically stated to be undefined behavior. But this isn't one of the cases that raise doubts, since a null pointer certainly does not point to a "valid object or function", and there is no desire within the standards committee to introduce null references.
Something like that:
@Before("execution(* com.yourpackage..*.*(..))")
public void monitor(JoinPoint jp) {
if (jp.getTarget().getClass().isAnnotationPresent(Monitor.class)) {
// perform the monitoring actions
}
}
Note that you must not have any other advice on the same class before this one, because the annotations will be lost after proxying.
Decorate the model property with the DisplayName attribute.
if (!*ptr) { /* empty string */}
similarly
if (*ptr) { /* not empty */ }
AspNetCoreModuleV2 cannot handle OPTIONS causing a preflight issue
I discovered that .net core module does not handle OPTIONS well which makes a big CORS problem:
Solution: remove the star *
In web.config, exclude OPTIONS verb from the module because this verb is already handled by the IIS OPTIONSVerbHandler:
<add name="aspNetCore" path="*" verb="* modules="AspNetCoreModuleV2" resourceType="Unspecified" />
with this one
<add name="aspNetCore" path="*" verb="GET,POST,PUT,DELETE" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
The main disadvantage of the #define method is that the string is duplicated each time it is used, so you can end up with lots of copies of it in the executable, making it bigger.
I had this problem too.
SVN doesn't do any line ending conversion, so files are committed with CRLF line endings intact. If you then use git-svn to put the project into git then the CRLF endings persist across into the git repository, which is not the state git expects to find itself in - the default being to only have unix/linux (LF) line endings checked in.
When you then check out the files on windows, the autocrlf conversion leaves the files intact (as they already have the correct endings for the current platform), however the process that decides whether there is a difference with the checked in files performs the reverse conversion before comparing, resulting in comparing what it thinks is an LF in the checked out file with an unexpected CRLF in the repository.
As far as I can see your choices are:
Footnote: if you choose option #2 then my experience is that some of the ancillary tools (rebase, patch etc) do not cope with CRLF files and you will end up sooner or later with files with a mix of CRLF and LF (inconsistent line endings). I know of no way of getting the best of both.
100% working solution
1) rm -rf /usr/local/lib/node_modules
2)brew uninstall node
3)echo prefix=~/.npm-packages >> ~/.npmrc
4)brew install node
5) npm install -g @angular/cli
Finally and most importantly
6) export PATH="$HOME/.npm-packages/bin:$PATH"
Also if any editor still shown err than write
7) point over there .
100% working
Yes, you could use a transparent div positioned over the iframe area, with a loader gif as only background.
Then you can attach an onload
event to the iframe:
$(document).ready(function() {
$("iframe#id").load(function() {
$("#loader-id").hide();
});
});
That would be the final solution. (inspired by @Hollan_Risley's post)
'use strict';
angular.module('app')
.config(function($provide) {
$provide.decorator('$state', function($delegate, $stateParams) {
$delegate.forceReload = function() {
return $delegate.go($delegate.current, $stateParams, {
reload: true,
inherit: false,
notify: true
});
};
return $delegate;
});
});
Now, whenever you need to reload, simply call:
$state.forceReload();
This method was
deprecatedin API level 24.
You should use FROM_HTML_MODE_LEGACY
Separate block-level elements with blank lines (two newline characters) in between. This is the legacy behavior prior to N.
Code
if (Build.VERSION.SDK_INT >= 24)
{
etOBJ.setText(Html.fromHtml("Intellij \n Amiyo",Html.FROM_HTML_MODE_LEGACY));
}
else
{
etOBJ.setText(Html.fromHtml("Intellij \n Amiyo"));
}
For Kotlin
fun setTextHTML(html: String): Spanned
{
val result: Spanned = if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
Html.fromHtml(html, Html.FROM_HTML_MODE_LEGACY)
} else {
Html.fromHtml(html)
}
return result
}
Call
txt_OBJ.text = setTextHTML("IIT Amiyo")
$('#datepicker').datepicker().change(evt => {_x000D_
var selectedDate = $('#datepicker').datepicker('getDate');_x000D_
var now = new Date();_x000D_
now.setHours(0,0,0,0);_x000D_
if (selectedDate < now) {_x000D_
console.log("Selected date is in the past");_x000D_
} else {_x000D_
console.log("Selected date is NOT in the past");_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>_x000D_
<input type="text" id="datepicker" name="event_date" class="datepicker">
_x000D_
From PEP 8 -- Style Guide for Python Code:
The preferred way of wrapping long lines is by using Python's implied line continuation inside parentheses, brackets and braces. Long lines can be broken over multiple lines by wrapping expressions in parentheses. These should be used in preference to using a backslash for line continuation.
Backslashes may still be appropriate at times. For example, long, multiple with-statements cannot use implicit continuation, so backslashes are acceptable:
with open('/path/to/some/file/you/want/to/read') as file_1, \ open('/path/to/some/file/being/written', 'w') as file_2: file_2.write(file_1.read())
Another such case is with assert statements.
Make sure to indent the continued line appropriately. The preferred place to break around a binary operator is after the operator, not before it. Some examples:
class Rectangle(Blob): def __init__(self, width, height, color='black', emphasis=None, highlight=0): if (width == 0 and height == 0 and color == 'red' and emphasis == 'strong' or highlight > 100): raise ValueError("sorry, you lose") if width == 0 and height == 0 and (color == 'red' or emphasis is None): raise ValueError("I don't think so -- values are %s, %s" % (width, height)) Blob.__init__(self, width, height, color, emphasis, highlight)
PEP8 now recommends the opposite convention (for breaking at binary operations) used by mathematicians and their publishers to improve readability.
Donald Knuth's style of breaking before a binary operator aligns operators vertically, thus reducing the eye's workload when determining which items are added and subtracted.
From PEP8: Should a line break before or after a binary operator?:
Donald Knuth explains the traditional rule in his Computers and Typesetting series: "Although formulas within a paragraph always break after binary operations and relations, displayed formulas always break before binary operations"[3].
Following the tradition from mathematics usually results in more readable code:
# Yes: easy to match operators with operands income = (gross_wages + taxable_interest + (dividends - qualified_dividends) - ira_deduction - student_loan_interest)
In Python code, it is permissible to break before or after a binary operator, as long as the convention is consistent locally. For new code Knuth's style is suggested.
[3]: Donald Knuth's The TeXBook, pages 195 and 196
If you want to only rely on the preprocessor, you have to figure out the list of predefined symbols. Preprocessor arithmetics has no concept of addressing.
GCC on Mac defines __LITTLE_ENDIAN__
or __BIG_ENDIAN__
$ gcc -E -dM - < /dev/null |grep ENDIAN
#define __LITTLE_ENDIAN__ 1
Then, you can add more preprocessor conditional directives based on platform detection like #ifdef _WIN32
etc.
I have been testing this out for my project.
Here is my solution:
public long GetTime()
{
DateTime dtCurTime = DateTime.Now.ToUniversalTime();
DateTime dtEpochStartTime = Convert.ToDateTime("1/1/1970 0:00:00 AM");
TimeSpan ts = dtCurTime.Subtract(dtEpochStartTime);
double epochtime;
epochtime = ((((((ts.Days * 24) + ts.Hours) * 60) + ts.Minutes) * 60) + ts.Seconds);
return Convert.ToInt64(epochtime);
}
I had the same problem. Go to Project Properties -> Deployment Assemplbly and add jstl jar
This is easily accomplished with jQuery's clone()
function.
So you must create two wrapper divs for the recaptcha. My first form's recaptcha div:
<div id="myrecap">
<?php
require_once('recaptchalib.php');
$publickey = "XXXXXXXXXXX-XXXXXXXXXXX";
echo recaptcha_get_html($publickey);
?>
</div>
The second form's div is empty (different ID). So mine is just:
<div id="myraterecap"></div>
Then the javascript is quite simple:
$(document).ready(function() {
// Duplicate our reCapcha
$('#myraterecap').html($('#myrecap').clone(true,true));
});
Probably don't need the second parameter with a true
value in clone()
, but doesn't hurt to have it... The only issue with this method is if you are submitting your form via ajax, the problem is that you have two elements that have the same name and you must me a bit more clever with the way you capture that correct element's values (the two ids for reCaptcha elements are #recaptcha_response_field
and #recaptcha_challenge_field just in case someone needs them)
If you are using SQL Server try this:
SELECT * FROM MyTable
WHERE MyDate < DATEADD(month, -2, GETDATE())
Based on your update it would be:
SELECT * FROM FB WHERE Dte < DATEADD(month, -2, GETDATE())
There are 4 main factors into why you would want to use synchronized
or java.util.concurrent.Lock
.
Note: Synchronized locking is what I mean when I say intrinsic locking.
When Java 5 came out with ReentrantLocks, they proved to have quite a noticeble throughput difference then intrinsic locking. If youre looking for faster locking mechanism and are running 1.5 consider j.u.c.ReentrantLock. Java 6's intrinsic locking is now comparable.
j.u.c.Lock has different mechanisms for locking. Lock interruptable - attempt to lock until the locking thread is interrupted; timed lock - attempt to lock for a certain amount of time and give up if you do not succeed; tryLock - attempt to lock, if some other thread is holding the lock give up. This all is included aside from the simple lock. Intrinsic locking only offers simple locking
As others have already pointed out, using lodash or underscore is probably the best solution. But if you do not need those libraries for anything else, you can probably use something like this:
function deepClone(obj) {
// return value is input is not an Object or Array.
if (typeof(obj) !== 'object' || obj === null) {
return obj;
}
let clone;
if(Array.isArray(obj)) {
clone = obj.slice(); // unlink Array reference.
} else {
clone = Object.assign({}, obj); // Unlink Object reference.
}
let keys = Object.keys(clone);
for (let i=0; i<keys.length; i++) {
clone[keys[i]] = deepClone(clone[keys[i]]); // recursively unlink reference to nested objects.
}
return clone; // return unlinked clone.
}
That's what we decided to do.
You can get the path via fp.name
. Example:
>>> f = open('foo/bar.txt')
>>> f.name
'foo/bar.txt'
You might need os.path.basename
if you want only the file name:
>>> import os
>>> f = open('foo/bar.txt')
>>> os.path.basename(f.name)
'bar.txt'
File object docs (for Python 2) here.
Connect android phone without using USB cable except XIAOMI PHONES
== MAKE SURE THAT YOUR PHONE HAS USB DEBUGGING ENABLED ==
== IP Address series should NOT be '0' like 192.168.0.10
1. Connect your PC (Laptop) and Android phone to same wifi network.
2. Go to the Android SDK folder > platform-tools and open command prompt by holding the shift key and right clicking on the folder.
3. Type the command "adb tcpip 5555", and hit Enter, sometimes it gives an error but ignore it and go ahead.
4. Type "adb connect [YOUR PHONE IP]". example: "adb connect 192.168.1.34" and hit enter, your phone will be connected to PC.
you have done it the correct way using
curl_setopt($ch, CURLOPT_POSTFIELDS,$body);
but i notice your missing
curl_setopt($ch, CURLOPT_POST,1);
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
String FilePath = "/home/lahiru/Desktop/Sample.xls";
FileInputStream fs = new FileInputStream(FilePath);
Workbook wb = Workbook.getWorkbook(fs);
String <variable> = sh.getCell("A2").getContents();
Answer 1:
To convert a string to a sequence of bytes in either Python 2 or Python 3, you use the string's encode
method. If you don't supply an encoding parameter 'ascii'
is used, which will always be good enough for numeric digits.
s = str(n).encode()
In Python 2 str(n)
already produces bytes; the encode
will do a double conversion as this string is implicitly converted to Unicode and back again to bytes. It's unnecessary work, but it's harmless and is completely compatible with Python 3.
Above is the answer to the question that was actually asked, which was to produce a string of ASCII bytes in human-readable form. But since people keep coming here trying to get the answer to a different question, I'll answer that question too. If you want to convert 10
to b'10'
use the answer above, but if you want to convert 10
to b'\x0a\x00\x00\x00'
then keep reading.
The struct
module was specifically provided for converting between various types and their binary representation as a sequence of bytes. The conversion from a type to bytes is done with struct.pack
. There's a format parameter fmt
that determines which conversion it should perform. For a 4-byte integer, that would be i
for signed numbers or I
for unsigned numbers. For more possibilities see the format character table, and see the byte order, size, and alignment table for options when the output is more than a single byte.
import struct
s = struct.pack('<i', 5) # b'\x05\x00\x00\x00'
There are many different sytles/conventions that people use when coding C++. For example, some people prefer separating words using capitals (myVar or MyVar), or using underscores (my_var). Typically, variables that use underscores are in all lowercase (from my experience).
There is also a coding style called hungarian, which I believe is used by microsoft. I personally believe that it is a waste of time, but it may prove useful. This is were variable names are given short prefixes such as i, or f to hint the variables type. For example: int iVarname, char* strVarname.
It is accepted that you end a struct/class name with _t, to differentiate it from a variable name. E.g.:
class cat_t {
...
};
cat_t myCat;
It is also generally accepted to add a affix to indicate pointers, such as pVariable or variable_p.
In all, there really isn't any single standard, but many. The choices you make about naming your variables doesn't matter, so long as it is understandable, and above all, consistent. Consistency, consistency, CONSISTENCY! (try typing that thrice!)
And if all else fails, google it.
A view is a virtual table, which provides access to a subset of column from one or more table. A view can derive its data from one or more table. An output of query can be stored as a view. View act like small a table but it does not physically take any space. View is good way to present data in particular users from accessing the table directly. A view in oracle is nothing but a stored sql scripts. Views itself contain no data.
I solved this by overriding the default .modal.fade
styles in my own LESS stylesheet:
.modal {
&.fade {
.transition(e('opacity .3s linear'));
top: 50%;
}
&.fade.in { top: 50%; }
}
This keeps the fade in / fade out animation but removes the slide up / slide down animation.
This answer will be for swift dictionary w/ String keys. Like this one below.
let dict: [String: Int] = ["hey": 1, "yo": 2, "sup": 3, "hello": 4, "whassup": 5]
Here's the extension I'll use.
extension Dictionary {
func allKeys() -> [String] {
guard self.keys.first is String else {
debugPrint("This function will not return other hashable types. (Only strings)")
return []
}
return self.flatMap { (anEntry) -> String? in
guard let temp = anEntry.key as? String else { return nil }
return temp }
}
}
And I'll get all the keys later using this.
let componentsArray = dict.allKeys()
The quick answer I suggest is:
response.Result.Content.ReadAsStringAsync().Result
The guy above gave comparison for HashMap / HashSet vs. TreeMap / TreeSet.
I will talk about ArrayList vs. LinkedList:
ArrayList:
get()
add()
ListIterator.add()
or Iterator.remove()
, it will be O(n) to shift all the following elements LinkedList:
get()
add()
ListIterator.add()
or Iterator.remove()
, it will be O(1)The most obvious solutions are already listed. Depending on where the query is sat (i.e. in application code) you can't always use IF statements and the inline CASE statements can get painful where lots of columns become conditional. Assuming Col1 + Col3 + Col7 are the same type, and likewise Col2, Col4 + Col8 you can do this:
SELECT Col1, Col2 FROM tbl WHERE @Var LIKE 'xyz'
UNION ALL
SELECT Col3, Col4 FROM tbl WHERE @Var LIKE 'zyx'
UNION ALL
SELECT Col7, Col8 FROM tbl WHERE @Var NOT LIKE 'xyz' AND @Var NOT LIKE 'zyx'
As this is a single command there are several performance benefits with regard to plan caching. Also the Query Optimiser will quickly eliminate those statements where @Var doesn't match the appropriate value without touching the storage engine.
=>
is the separator for associative arrays. In the context of that foreach loop, it assigns the key of the array to $user
and the value to $pass
.
Example:
$user_list = array(
'dave' => 'apassword',
'steve' => 'secr3t'
);
foreach ($user_list as $user => $pass) {
echo "{$user}'s pass is: {$pass}\n";
}
// Prints:
// "dave's pass is: apassword"
// "steve's pass is: secr3t"
Note that this can be used for numerically indexed arrays too.
Example:
$foo = array('car', 'truck', 'van', 'bike', 'rickshaw');
foreach ($foo as $i => $type) {
echo "{$i}: {$type}\n";
}
// prints:
// 0: car
// 1: truck
// 2: van
// 3: bike
// 4: rickshaw
I use following code, found somewhere in the internet don't remember the source though.
var allText;
var rawFile = new XMLHttpRequest();
rawFile.open("GET", file, false);
rawFile.onreadystatechange = function () {
if (rawFile.readyState === 4) {
if (rawFile.status === 200 || rawFile.status == 0) {
allText = rawFile.responseText;
}
}
}
rawFile.send(null);
return JSON.parse(allText);
Current stable Bootstrap version is 3.2.0.
With version 3.2 visible-print deprecated, so you should use like this:
Class Browser Print
-------------------------------------------------
.visible-print-block Hidden Visible (as block)
.visible-print-inline Hidden Visible (as inline)
.visible-print-inline-block Hidden Visible (as inline-block)
.hidden-print Visible Hidden
Print classes are now in documents: http://getbootstrap.com/css/#responsive-utilities-print
Similar to the regular responsive classes,
use these for toggling content for print.
Class Browser Print
----------------------------------------
.visible-print Hidden Visible
.hidden-print Visible Hidden
After adding bootstrap.css file into your HTML,
Find the parts that you don't want to print and add hidden-print
class into tags.
Because css file includes this:
@media print {
.visible-print { display: inherit !important; }
.hidden-print { display: none !important; }
}
First I am afraid your question contains a little mistake. There is not method writeline in class Console. Instead class Console provides method writer() that returns PrintWriter. This print writer has println().
Now what is the difference between
System.console().writer().println("hello from console");
and
System.out.println("hello system out");
If you run your application from command line I think there is no difference. But if console is unavailable System.console() returns null while System.out still exists. This may happen if you invoke your application and perform redirect of STDOUT to file.
Here is an example I have just implemented.
import java.io.Console;
public class TestConsole {
public static void main(String[] args) {
Console console = System.console();
System.out.println("console=" + console);
console.writer().println("hello from console");
}
}
When I ran the application from command prompt I got the following:
$ java TestConsole
console=java.io.Console@93dcd
hello from console
but when I redirected the STDOUT to file...
$ java TestConsole >/tmp/test
Exception in thread "main" java.lang.NullPointerException
at TestConsole.main(TestConsole.java:8)
Line 8 is console.writer().println()
.
Here is the content of /tmp/test
console=null
I hope my explanations help.
Solution for me:
Navigate to your project workspace (not your project) and run the following commands:
dev1:workspace$ cd ~/Documents/workspace/.metadata/.plugins/ dev1:workspace$ rm -rf org.eclipse.core.resources
Navigate to your Eclipse directory and type this command:
dev1:eclipse$ ./eclipse clear
Eclipse will start with an empty workspace - don't worry your projects are still there. Simple create new project from existing resource and things should be gravy.
The exact error I was receiving: [2012-02-07 14:15:53 - Dex Loader] Unable to execute dex: Multiple dex files define Landroid/support/v4/view/PagerAdapter; [2012-02-07 14:15:53 - ProjectCloud] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/support/v4/view/PagerAdapter;
When testing for directories remember that every directory contains two special files.
One is called '.' and the other '..'
. is the directory's own name while .. is the name of it's parent directory.
To avoid trailing backslash problems just test to see if the directory knows it's own name.
eg:
if not exist %temp%\buffer\. mkdir %temp%\buffer
Not sure how useful this will be, but you can also get the context when you initialize the app. This is the soonest you can get the context, even before an @Autowire
.
@SpringBootApplication
public class Application extends SpringBootServletInitializer {
private static ApplicationContext context;
// I believe this only runs during an embedded Tomcat with `mvn spring-boot:run`.
// I don't believe it runs when deploying to Tomcat on AWS.
public static void main(String[] args) {
context = SpringApplication.run(Application.class, args);
DataSource dataSource = context.getBean(javax.sql.DataSource.class);
Logger.getLogger("Application").info("DATASOURCE = " + dataSource);
Just use another container to wrap last two divs. Don't forget to use CSS prefixes.
#productShowcaseContainer {_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
height: 600px;_x000D_
width: 580px;_x000D_
background-color: rgb(240, 240, 240);_x000D_
}_x000D_
_x000D_
#productShowcaseTitle {_x000D_
height: 100px;_x000D_
background-color: rgb(200, 200, 200);_x000D_
}_x000D_
_x000D_
#anotherContainer{_x000D_
display: flex;_x000D_
height: 100%;_x000D_
}_x000D_
_x000D_
#productShowcaseDetail {_x000D_
background-color: red;_x000D_
flex: 4;_x000D_
}_x000D_
_x000D_
#productShowcaseThumbnailContainer {_x000D_
background-color: blue;_x000D_
flex: 1;_x000D_
}
_x000D_
<div id="productShowcaseContainer">_x000D_
<div id="productShowcaseTitle">1</div>_x000D_
<div id="anotherContainer">_x000D_
<div id="productShowcaseDetail">2</div>_x000D_
<div id="productShowcaseThumbnailContainer">3</div>_x000D_
</div>_x000D_
</div>
_x000D_
case when field1>0 then field2/field1 else 0 end as field3
An implementation of Iterable
is one that provides an Iterator
of itself:
public interface Iterable<T>
{
Iterator<T> iterator();
}
An iterator is a simple way of allowing some to loop through a collection of data without assignment privileges (though with ability to remove).
public interface Iterator<E>
{
boolean hasNext();
E next();
void remove();
}
See Javadoc.
This works well for me. Maybe you wanna use JQuery to hook the event.
<img src="foo.jpg" onerror="if (this.src != 'error.jpg') this.src = 'error.jpg';">
Updated with jacquargs error guard
Updated: CSS only solution
I recently saw Vitaly Friedman demo a great CSS solution I wasn't aware of. The idea is to apply the content
property to the broken image. Normally :after
or :before
do not apply to images, but when they're broken, they're applied.
<img src="nothere.jpg">
<style>
img:before {
content: ' ';
display: block;
position: absolute;
height: 50px;
width: 50px;
background-image: url(ishere.jpg);
</style>
Demo: https://jsfiddle.net/uz2gmh2k/2/
As the fiddle shows, the broken image itself is not removed, but this will probably solve the problem for most cases without any JS nor gobs of CSS. If you need to apply different images in different locations, simply differentiate with a class: .my-special-case img:before { ...
Copying from a command line is unnecessary. I typed in the name of the DLL from the Start Window search. I chose See More Results. The one in the GAC was returned in the search window. I right clicked on it and said open file location. It opened in normal Windows Explorer. I copied the file. I closed the window. Done.
GitHub pages host only static HTML pages. No server side technology is supported, so Node.js applications won't run on GitHub pages. There are lots of hosting providers, as listed on the Node.js wiki.
App fog seems to be the most economical as it provides free hosting for projects with 2GB of RAM (which is pretty good if you ask me).
As stated here, AppFog removed their free plan for new users.
If you want to host static pages on GitHub, then read this guide. If you plan on using Jekyll, then this guide will be very helpful.
This will direct everything from the old host to the root of the new host:
RewriteEngine on
RewriteCond %{http_host} ^www.old.com [NC,OR]
RewriteCond %{http_host} ^old.com [NC]
RewriteRule ^(.*)$ http://www.thenewdomain.org/ [R=301,NC,L]
Doesn't all of this assume that the base class is a new-style class?
class A:
def __init__(self):
print("A.__init__()")
class B(A):
def __init__(self):
print("B.__init__()")
super(B, self).__init__()
Will not work in Python 2. class A
must be new-style, i.e: class A(object)
new System.Uri(Page.Request.Url, "/myRelativeUrl.aspx").AbsoluteUri
GitHub suggests that you should make sure to only use \n as a newline character in git-handled repos. There's an option to auto-convert:
$ git config --global core.autocrlf true
Of course, this is said to convert crlf to lf, while you want to convert cr to lf. I hope this still works …
And then convert your files:
# Remove everything from the index
$ git rm --cached -r .
# Re-add all the deleted files to the index
# You should get lots of messages like: "warning: CRLF will be replaced by LF in <file>."
$ git diff --cached --name-only -z | xargs -0 git add
# Commit
$ git commit -m "Fix CRLF"
core.autocrlf is described on the man page.
click()
to the QMainWindow custom slot you have created).Code example:
MainWindow.h
// ...
include "newwindow.h"
// ...
public slots:
void openNewWindow();
// ...
private:
NewWindow *mMyNewWindow;
// ...
}
MainWindow.cpp
// ...
MainWindow::MainWindow()
{
// ...
connect(mMyButton, SIGNAL(click()), this, SLOT(openNewWindow()));
// ...
}
// ...
void MainWindow::openNewWindow()
{
mMyNewWindow = new NewWindow(); // Be sure to destroy your window somewhere
mMyNewWindow->show();
// ...
}
This is an example on how display a custom new window. There are a lot of ways to do this.
class Class;
std::vector<Class*> vec = some_data;
for (unsigned int i=vec.size(); i>0;) {
--i;
delete vec[i];
vec.pop_back();
}
// Free memory, efficient for large sized vector
vec.shrink_to_fit();
Performance: theta(n)
If pure objects (not recommended for large data types, then just vec.clear();
Most common case of this error happening is using template that is generating the control then changing the way id
and/or name
are being generated by 'overriding' default template with something like
@Html.TextBoxFor(m => m, new {Name = ViewData["Name"], id = ViewData["UniqueId"]} )
and then forgetting to change ValidationMessageFor
to
@Html.ValidationMessageFor(m => m, null, new { data_valmsg_for = ViewData["Name"] })
Hope this saves you some time.
Windows XP has the Windows Firewall which can interfere with network traffic if not configured properly. You can turn off the Windows Firewall, if you have administrator privileges, by accessing the Windows Firewall applet through the Control Panel. If your application works with the Windows Firewall turned off then the problem is probably due to the settings of the firewall.
We have an application which runs on multiple PCs communicating using UDP/IP and we have been doing experiments so that the application can run on a PC with a user who does not have administrator privileges. In order for our application to communicate between multiple PCs we have had to use an administrator account to modify the Windows Firewall settings.
In our application, one PC is designated as the server and the others are clients in a server/client group and there may be several groups on the same subnet.
The first change was to use the functionality of the Exceptions tab of the Windows Firewall applet to create an exception for the port that we use for communication.
We are using host name lookup so that the clients can locate their assigned server by using the computer name which is composed of a mnemonic prefix with a dash followed by an assigned terminal number (for instance SERVER100-1). This allows several servers with their assigned clients to coexist on the same subnet. The client uses its prefix to generate the computer name for the assigned server and to then use host name lookup to discover the IP address of the assigned server.
What we found is that the host name lookup using the computer name (assigned through the Computer Name tab of the System Properties dialog) would not work unless the server PC's Windows Firewall had the File and Printer Sharing Service port enabled.
So we had to make two changes: (1) setup an exception for the port we used for communication and (2) enable File and Printer Service in the Exceptions tab to allow for the host name lookup.
** EDIT **
You may also find this Microsoft Knowledge Base article on helpful on Windows XP networking.
And see this article on NETBIOS name resolution in Windows.
<div id="load" style="display:none"><img src="ajax-loader.gif"/></div>
function getData(p){
var page=p;
document.getElementById("load").style.display = "block"; // show the loading message.
$.ajax({
url: "loadData.php?id=<? echo $id; ?>",
type: "POST",
cache: false,
data: "&page="+ page,
success : function(html){
$(".content").html(html);
document.getElementById("load").style.display = "none";
}
});
The struct module mimics C structures. It takes more CPU cycles for a processor to read a 16-bit word on an odd address or a 32-bit dword on an address not divisible by 4, so structures add "pad bytes" to make structure members fall on natural boundaries. Consider:
struct { 11
char a; 012345678901
short b; ------------
char c; axbbcxxxdddd
int d;
};
This structure will occupy 12 bytes of memory (x being pad bytes).
Python works similarly (see the struct documentation):
>>> import struct
>>> struct.pack('BHBL',1,2,3,4)
'\x01\x00\x02\x00\x03\x00\x00\x00\x04\x00\x00\x00'
>>> struct.calcsize('BHBL')
12
Compilers usually have a way of eliminating padding. In Python, any of =<>! will eliminate padding:
>>> struct.calcsize('=BHBL')
8
>>> struct.pack('=BHBL',1,2,3,4)
'\x01\x02\x00\x03\x04\x00\x00\x00'
Beware of letting struct handle padding. In C, these structures:
struct A { struct B {
short a; int a;
char b; char b;
}; };
are typically 4 and 8 bytes, respectively. The padding occurs at the end of the structure in case the structures are used in an array. This keeps the 'a' members aligned on correct boundaries for structures later in the array. Python's struct module does not pad at the end:
>>> struct.pack('LB',1,2)
'\x01\x00\x00\x00\x02'
>>> struct.pack('LBLB',1,2,3,4)
'\x01\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00\x04'
In Unix CLI, it's very practical to redirect only errors to a file:
./script 2> errors.log
From your script, either use var_dump()
or equivalent as usual (both STDOUT and STDERR will receive the output), but to write only in the log file:
fwrite(STDERR, "Debug infos\n"); // Write in errors.log^
Then from another shell, for live changes:
tail -f errors.log
or simply
watch cat errors.log
For me, This error was caused when I was attempting to pass in a tuple into the string format method.
I found the solution from this question/answer
Copying and pasting the correct answer from the link (NOT MY WORK):
>>> thetuple = (1, 2, 3)
>>> print "this is a tuple: %s" % (thetuple,)
this is a tuple: (1, 2, 3)
Making a singleton tuple with the tuple of interest as the only item, i.e. the (thetuple,) part, is the key bit here.
If your merge commit is commit 0e1329e5, as above, you can get the diff that was contained in this merge by:
git diff 0e1329e5^..0e1329e5
I hope this helps!
I just want to point out, even syntax of itemgetter looks really neat, but it's kinda slow when perform on large list.
import timeit
from operator import itemgetter
start=timeit.default_timer()
for i in range(1000000):
itemgetter(0,2,3)(myList)
print ("Itemgetter took ", (timeit.default_timer()-start))
Itemgetter took 1.065209062149279
start=timeit.default_timer()
for i in range(1000000):
myList[0],myList[2],myList[3]
print ("Multiple slice took ", (timeit.default_timer()-start))
Multiple slice took 0.6225321444745759
Assuming you only have the list of items and a list of true/required indices, this should be the fastest:
property_asel = [ property_a[index] for index in good_indices ]
This means the property selection will only do as many rounds as there are true/required indices. If you have a lot of property lists that follow the rules of a single tags (true/false) list you can create an indices list using the same list comprehension principles:
good_indices = [ index for index, item in enumerate(good_objects) if item ]
This iterates through each item in good_objects (while remembering its index with enumerate) and returns only the indices where the item is true.
For anyone not getting the list comprehension, here is an English prose version with the code highlighted in bold:
list the index for every group of index, item that exists in an enumeration of good objects, if (where) the item is True
This could be solved without VBA by the following technique.
In this example I am counting all the threes (3) in the range A:A
of the sheets Page M904
, Page M905
and Page M906
.
List all the sheet names in a single continuous range like in the following example. Here listed in the range D3:D5
.
Then by having the lookup value in cell B2
, the result can be found in cell B4
by using the following formula:
=SUMPRODUCT(COUNTIF(INDIRECT("'"&D3:D5&"'!A:A"), B2))
Do not depend on ADB shell, just treat it (the adb logcat) a normal linux output and then pip it:
$ adb shell logcat | grep YouTag
# just like:
$ ps -ef | grep your_proc
I think the simplest solution is re-style the checkbox as some users suggest. The CSS below is working for me, only requires a few lines of CSS, and answers the OP question:
input[type=checkbox] {
-webkit-appearance: none;
-moz-appearance: none;
vertical-align: middle;
width: 14px;
height: 14px;
font-size: 14px;
background-color: #eee;
}
input[type=checkbox]:checked:after {
position: relative;
bottom: 3px;
left: 1px;
color: blue;
content: "\2713"; /* check mark */
}
As mentioned in this post, the zoom property seems not to work on Firefox, and transforms may cause undesired effects.
Tested on Chrome and Firefox, should work for all modern browsers. Just change the properties (colors, size, bottom, left, etc.) to your needs. Hope it helps!
What you seem to want would allow for a static method to be called via both the Type or any instance of that type. This would at very least result in ambiguity which is not a desirable trait.
There would be endless debates about whether it mattered, which is best practice and whether there are performance issues doing it one way or another. By simply not supporting it C# saves us having to worry about it.
Its also likely that a compilier that conformed to this desire would lose some optimisations that may come with a more strict separation between instance and static methods.
Beyond the bug that was discovered and fixed, I'll just note that the error message sre_constants.error: nothing to repeat
is a bit confusing. I was trying to use r'?.*'
as a pattern, and thought it was complaining for some strange reason about the *
, but the problem is actually that ?
is a way of saying "repeat zero or one times". So I needed to say r'\?.*'
to match a literal ?
In the sample, we are creating two datetime objects, one with current time and another one with 75 seconds added to the current time. Then we will call the method .Subtract() on the second DateTime object. This will return a TimeSpan object. Once we get the TimeSpan object, we can use the properties of TimeSpan to get the actual Hours, Minutes and Seconds.
DateTime startTime = DateTime.Now;
DateTime endTime = DateTime.Now.AddSeconds( 75 );
TimeSpan span = endTime.Subtract ( startTime );
Console.WriteLine( "Time Difference (seconds): " + span.Seconds );
Console.WriteLine( "Time Difference (minutes): " + span.Minutes );
Console.WriteLine( "Time Difference (hours): " + span.Hours );
Console.WriteLine( "Time Difference (days): " + span.Days );
Result:
Time Difference (seconds): 15
Time Difference (minutes): 1
Time Difference (hours): 0
Time Difference (days): 0
I tried a slightly different approach to prevent UIWebView objects from scrolling and bouncing: adding a gesture recognizer to override other gestures.
It seems, UIWebView or its scroller subview uses its own pan gesture recognizer to detect user scrolling. But according to Apple's documentation there is a legitimate way of overriding one gesture recognizer with another. UIGestureRecognizerDelegate protocol has a method gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer: - which allows to control the behavior of any colliding gesture recognizers.
So, what I did was
in the view controller's viewDidLoad method:
// Install a pan gesture recognizer // We ignore all the touches except the first and try to prevent other pan gestures
// by registering this object as the recognizer's delegate
UIPanGestureRecognizer *recognizer;
recognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePanFrom:)];
recognizer.delegate = self;
recognizer.maximumNumberOfTouches = 1;
[self.view addGestureRecognizer:recognizer];
self.panGestureFixer = recognizer;
[recognizer release];
then, the gesture override method:
// Control gestures precedence
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
// Prevent all panning gestures (which do nothing but scroll webViews, something we want to disable in
// the most painless way)
if ([otherGestureRecognizer isKindOfClass:[UIPanGestureRecognizer class]])
{
// Just disable every other pan gesture recognizer right away
otherGestureRecognizer.enabled = FALSE;
}
return NO;
}
Of course, this delegate method can me more complex in a real application - we may disable other recognizers selectively, analyzing otherGestureRecognizer.view and making decision based on what view it is.
And, finally, for the sake of completeness, the method we registered as a pan handler:
- (void)handlePanFrom:(UIPanGestureRecognizer *)recognizer
{
// do nothing as of yet
}
it can be empty if all we want is to cancel web views' scrolling and bouncing, or it can contain our own code to implement the kind of pan motions and animations we really want...
So far I'm just experimenting with all this stuff, and it seems to be working more or less as I want it. I haven't tried to submit any apps to iStore yet, though. But I believe I haven't used anything undocumented so far... If anyone finds it otherwise, please inform me.
The answers above are really complete, but if you want a quick and dirty header to copy'n paste, use this:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Module documentation goes here
and here
and ...
"""
Why this is a good one:
See also: https://www.python.org/dev/peps/pep-0263/
If you just write a class in each file, you don't even need the documentation (it would go inside the class doc).
After finding this StackOverflow question/answer
Complex type is getting null in a ApiController parameter
the [FromBody] attribute on the controller method needs to be [FromUri] since a GET does not have a body. After this change the "filter" complex object is passed correctly.
I found this suggestion useful in my case:
def product_params
params.require(:product).permit(:name).tap do |whitelisted|
whitelisted[:data] = params[:product][:data]
end
end
Check this link of Xavier's comment on github.
This approach whitelists the entire params[:measurement][:groundtruth] object.
Using the original questions attributes:
def product_params
params.require(:measurement).permit(:name, :groundtruth).tap do |whitelisted|
whitelisted[:groundtruth] = params[:measurement][:groundtruth]
end
end
With Java 8 and later, use the java.time package.
ZonedDateTime.now().getYear();
ZonedDateTime.now().getMonthValue();
ZonedDateTime.now().getDayOfMonth();
ZonedDateTime.now().getHour();
ZonedDateTime.now().getMinute();
ZonedDateTime.now().getSecond();
ZonedDateTime.now()
is a static method returning the current date-time from the system clock in the default time-zone. All the get methods return an int
value.
None of these answers solved my problem, which was that the items weren't the same width in my makeshift flexbox table when it was shrunk to a width too small.
The solution for me was simply to put overflow: hidden;
on the flex-grow: 1;
cells.
Try this
Html.DropDownList("Types", Model.Types, new { @disabled = "disabled" })
This is how I usually get current logged in user and their id in my templates.
<p>Your Username is : {{user|default: Unknown}} </p>
<p>Your User Id is : {{user.id|default: Unknown}} </p>
(Q1) How can I find the socket file?
The default location for the socket file is /tmp/mysql.sock, to find the socket file for your system use this.
mysqladmin variables | grep socket
If you have just installed MySql the mysql.sock file will not be created until the server is started. Use this command to start it.
sudo launchctl load -F /Library/LaunchDaemons/com.oracle.oss.mysql.mysqld.plist
If prompted for a password you can pass the username root or other username like this. Terminal will prompt you for the password.
mysqladmin --user root --password variables | grep socket
(Q2) How can I refresh locate index
Refresh the locate db with this command.
sudo /usr/libexec/locate.updatedb
Adding to this. If you use both INSERT IGNORE
and ON DUPLICATE KEY UPDATE
in the same statement, the update will still happen if the insert finds a duplicate key. In other words, the update takes precedence over the ignore. However, if the ON DUPLICATE KEY UPDATE
clause itself causes a duplicate key error, that error will be ignored.
This can happen if you have more than one unique key, or if your update attempts to violate a foreign key constraint.
CREATE TABLE test
(id BIGINT (20) UNSIGNED AUTO_INCREMENT,
str VARCHAR(20),
PRIMARY KEY(id),
UNIQUE(str));
INSERT INTO test (str) VALUES('A'),('B');
/* duplicate key error caused not by the insert,
but by the update: */
INSERT INTO test (str) VALUES('B')
ON DUPLICATE KEY UPDATE str='A';
/* duplicate key error is suppressed */
INSERT IGNORE INTO test (str) VALUES('B')
ON DUPLICATE KEY UPDATE str='A';
random.sample(population, k)
It is used for randomly sampling a sample of length 'k'
from a population. returns a 'k'
length list of unique elements chosen from the population sequence or set
it returns a new list and leaves the original population unchanged and the resulting list is in selection order so that all sub-slices will also be valid random samples
I am putting up an example in which I am splitting a dataset randomly. It is basically a function in which you pass x_train(population)
as an argument and return indices of 60%
of the data as D_test
.
import random
def randomly_select_70_percent_of_data_from_1_to_length(x_train):
return random.sample(range(0, len(x_train)), int(0.6*len(x_train)))
You can simply access the element classList which received the click event using event.target then by using toggle method on the classList object to add or remove the intended class
<div onClick={({target}) => target.classList.toggle('active')}>
....
....
....
</div>
Equevelent
<div onClick={e=> e.target.classList.toggle('active')}>
....
....
....
</div>
OR by declaring a function that handle the click and does extra work
function handleClick(el){
.... Do more stuff
el.classList.toggle('active');
}
<div onClick={({target})=> handleClick(target)}>
....
....
....
</div>
You will want to verify whatever your calling is valid. For example, in the case of a specific function, you will want to check and see if the function exists:
function doIt($callback) {
if(function_exists($callback)) {
$callback();
} else {
// some error handling
}
}
You can use x = func()[0]
to return the first value, x = func()[1]
to return the second, and so on.
If you want to get multiple values at a time, use something like x, y = func()[2:4]
.
This is a briefer variation of the accepted answer: the function below extracts the bits from-to inclusive by creating a bitmask. After applying an AND logic over the original number the result is shifted so the function returns just the extracted bits. Skipped index/integrity checks for clarity.
uint16_t extractInt(uint16_t orig16BitWord, unsigned from, unsigned to)
{
unsigned mask = ( (1<<(to-from+1))-1) << from;
return (orig16BitWord & mask) >> from;
}
In my specific case I had to stop ENTER from submitting the form and also simulate the clicking of the submit button. This is because the submit button had a click handler on it because we were within a modal window (inherited old code). In any case here's my combo solutions for this case.
$('input,select').keypress(function(event) {
// detect ENTER key
if (event.keyCode == 13) {
// simulate submit button click
$("#btn-submit").click();
// stop form from submitting via ENTER key press
event.preventDefault ? event.preventDefault() : event.returnValue = false;
}
});
This use case is specifically useful for people working with IE8.
Eclipse by default does not know about your external Maven installation and uses the embedded one. Therefore in order for Eclipse to use your global settings you need to set it in menu Settings ? Maven ? Installations.
Marquee (<marquee>
) is a deprecated and not a valid HTML tag. You can use many jQuery plugins to do. One of it, is jQuery News Ticker. There are many more!
No, how you are doing it is correct.
http://www.w3.org/MarkUp/html-spec/html-spec_8.html#SEC8.2.2
This answer was originally edited into the question by the asker.
The problem was that the batch file WAS throwing a silent error. The final POPD was doing no work and was incorrectly called with no opening PUSHD.
Broken code:
CD /D "C:\Program Files (x86)\Olim, LLC\Collybus DR Upload" CALL CollybusUpload.exe POPD
Correct code:
PUSHD "C:\Program Files (x86)\Olim, LLC\Collybus DR Upload" CALL CollybusUpload.exe POPD
You can use this VSCode Extension called Reload
data = [4, 5, 6] # Your global variable
def print_data(data): # <-- Pass in a parameter called "data"
print data # <-- Note: You can access global variable inside your function, BUT for now, which is which? the parameter or the global variable? Confused, huh?
print_data(data)
Accepted answer of Kapil is flawed, it will update more than one record if there are 2 or more than one records available with same timestamps, not a true top 1 query.
;With cte as (
SELECT TOP(1) email_fk FROM abc WHERE id= 177 ORDER BY created DESC
)
UPDATE cte SET email_fk = 10
Ref Remus Rusanu Ans:- SQL update top1 row query
In my somewhat checkered experience, applying -O3
to an entire program almost always makes it slower (relative to -O2
), because it turns on aggressive loop unrolling and inlining that make the program no longer fit in the instruction cache. For larger programs, this can also be true for -O2
relative to -Os
!
The intended use pattern for -O3
is, after profiling your program, you manually apply it to a small handful of files containing critical inner loops that actually benefit from these aggressive space-for-speed tradeoffs. Newer versions of GCC have a profile-guided optimization mode that can (IIUC) selectively apply the -O3
optimizations to hot functions -- effectively automating this process.
There is slight change in mysql_real_escape_string mysqli_real_escape_string. below syntax
mysql_real_escape_string syntax will be mysql_real_escape_string($_POST['sample_var'])
mysqli_real_escape_string syntax will be mysqli_real_escape_string($conn,$_POST['sample_var'])
<xsl:text disable-output-escaping="yes">& </xsl:text>
will do the trick.
I came up with this function that does not simply return the IP address but an array with IP information.
// Example usage:
$info = ip_info();
if ( $info->proxy ) {
echo 'Your IP is ' . $info->ip;
} else {
echo 'Your IP is ' . $info->ip . ' and your proxy is ' . $info->proxy_ip;
}
Here's the function:
/**
* Retrieves the best guess of the client's actual IP address.
* Takes into account numerous HTTP proxy headers due to variations
* in how different ISPs handle IP addresses in headers between hops.
*
* @since 1.1.3
*
* @return object {
* IP Address details
*
* string $ip The users IP address (might be spoofed, if $proxy is true)
* bool $proxy True, if a proxy was detected
* string $proxy_id The proxy-server IP address
* }
*/
function ip_info() {
$result = (object) array(
'ip' => $_SERVER['REMOTE_ADDR'],
'proxy' => false,
'proxy_ip' => '',
);
/*
* This code tries to bypass a proxy and get the actual IP address of
* the visitor behind the proxy.
* Warning: These values might be spoofed!
*/
$ip_fields = array(
'HTTP_CLIENT_IP',
'HTTP_X_FORWARDED_FOR',
'HTTP_X_FORWARDED',
'HTTP_X_CLUSTER_CLIENT_IP',
'HTTP_FORWARDED_FOR',
'HTTP_FORWARDED',
'REMOTE_ADDR',
);
foreach ( $ip_fields as $key ) {
if ( array_key_exists( $key, $_SERVER ) === true ) {
foreach ( explode( ',', $_SERVER[$key] ) as $ip ) {
$ip = trim( $ip );
if ( filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE ) !== false ) {
$forwarded = $ip;
break 2;
}
}
}
}
// If we found a different IP address then REMOTE_ADDR then it's a proxy!
if ( $forwarded != $result->ip ) {
$result->proxy = true;
$result->proxy_ip = $result->ip;
$result->ip = $forwarded;
}
return $result;
}
Another option is to check for regular expression match on the command output.
For example:
[[ "$(./somecommand)" =~ "sub string" ]] && echo "Output includes 'sub string'"
I know if that can help you a bit.
Here is something I tried to simulate for you.
Checkout the jsFiddle ;)
http://jsfiddle.net/migontech/gbW8Z/5/
Created a filter that you also can use in 'ng-repeat'
app.filter('getById', function() {
return function(input, id) {
var i=0, len=input.length;
for (; i<len; i++) {
if (+input[i].id == +id) {
return input[i];
}
}
return null;
}
});
Usage in controller:
app.controller('SomeController', ['$scope', '$filter', function($scope, $filter) {
$scope.fish = [{category:'freshwater', id:'1', name: 'trout', more:'false'}, {category:'freshwater', id:'2', name:'bass', more:'false'}]
$scope.showdetails = function(fish_id){
var found = $filter('getById')($scope.fish, fish_id);
console.log(found);
$scope.selected = JSON.stringify(found);
}
}]);
If there are any questions just let me know.
You can think of both as an ordered list of things (ordered by the time at which they were added to the list). The main difference between the two is how new elements enter the list and old elements leave the list.
For a stack, if I have a list a, b, c
, and I add d
, it gets tacked on the end, so I end up with a,b,c,d
. If I want to pop an element of the list, I remove the last element I added, which is d
. After a pop, my list is now a,b,c
again
For a queue, I add new elements in the same way. a,b,c
becomes a,b,c,d
after adding d
. But, now when I pop, I have to take an element from the front of the list, so it becomes b,c,d
.
It's very simple!
The official way to find out if you have 4.5 installed (and not 4.0) is in the registry keys :
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
Relesae DWORD needs to be bigger than 378675 Here is the Microsoft doc for it
all the other answers of checking the minor version after 4.0.30319.xxxxx seem correct though (msbuild.exe -version , or properties of clr.dll), i just needed something documented (not a blog)
Xcode 10
cross-project references
[About] Explicit dependency
[About] //Xcode 10
Build Phases -> Target Dependencies -> + Add items
//Xcode 11
Build Phases -> Dependencies -> + Add items
In Choose items to add:
dialog you will see only targets from your project and the sub-project
For Angular RC5 and RC6 you have to declare component in the module metadata decorator's declarations
key, so add CoursesComponent
in your main module declarations
as below and remove directives
from AppComponent
metadata.
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { CoursesComponent } from './courses.component';
@NgModule({
imports: [ BrowserModule ],
declarations: [ AppComponent, CoursesComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
An object file is just what you get when you compile one (or several) source file(s).
It can be either a fully completed executable or library, or intermediate files.
The object files typically contain native code, linker information, debugging symbols and so forth.
On most (see details below) browsers, editing the placeholder in javascript allows multiline placeholder. As it has been said, it's not compliant with the specification and you shouldn't expect it to work in the future (edit: it does work).
This example replaces all multiline textarea's placeholder.
var textAreas = document.getElementsByTagName('textarea');
Array.prototype.forEach.call(textAreas, function(elem) {
elem.placeholder = elem.placeholder.replace(/\\n/g, '\n');
});
_x000D_
<textarea class="textAreaMultiline"
placeholder="Hello, \nThis is multiline example \n\nHave Fun"
rows="5" cols="35"></textarea>
_x000D_
JsFiddle snippet.
Expected resultBased on comments it seems some browser accepts this hack and others don't.
This is the results of tests I ran (with browsertshots and browserstack)
Fused with theses statistics, this means that it works on about 88.7% of currently (Oct 2015) used browsers.
Update: Today, it works on at least 94.4% of currently (July 2018) used browsers.
You can get it by XMLHttpRequest.responseText
in XMLHttpRequest.onreadystatechange
when XMLHttpRequest.readyState
equals to XMLHttpRequest.DONE
.
Here's an example (not compatible with IE6/7).
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE) {
alert(xhr.responseText);
}
}
xhr.open('GET', 'http://example.com', true);
xhr.send(null);
For better crossbrowser compatibility, not only with IE6/7, but also to cover some browser-specific memory leaks or bugs, and also for less verbosity with firing ajaxical requests, you could use jQuery.
$.get('http://example.com', function(responseText) {
alert(responseText);
});
Note that you've to take the Same origin policy for JavaScript into account when not running at localhost. You may want to consider to create a proxy script at your domain.
If it happens that you need the Current Active Form from your MDI application: (MDI- Multi Document Interface).
Form activForm;
activForm = Form.ActiveForm.ActiveMdiChild;
From IEEE floating-point exceptions in C++ :
This page will answer the following questions.
- My program just printed out 1.#IND or 1.#INF (on Windows) or nan or inf (on Linux). What happened?
- How can I tell if a number is really a number and not a NaN or an infinity?
- How can I find out more details at runtime about kinds of NaNs and infinities?
- Do you have any sample code to show how this works?
- Where can I learn more?
These questions have to do with floating point exceptions. If you get some strange non-numeric output where you're expecting a number, you've either exceeded the finite limits of floating point arithmetic or you've asked for some result that is undefined. To keep things simple, I'll stick to working with the double floating point type. Similar remarks hold for float types.
Debugging 1.#IND, 1.#INF, nan, and inf
If your operation would generate a larger positive number than could be stored in a double, the operation will return 1.#INF on Windows or inf on Linux. Similarly your code will return -1.#INF or -inf if the result would be a negative number too large to store in a double. Dividing a positive number by zero produces a positive infinity and dividing a negative number by zero produces a negative infinity. Example code at the end of this page will demonstrate some operations that produce infinities.
Some operations don't make mathematical sense, such as taking the square root of a negative number. (Yes, this operation makes sense in the context of complex numbers, but a double represents a real number and so there is no double to represent the result.) The same is true for logarithms of negative numbers. Both sqrt(-1.0) and log(-1.0) would return a NaN, the generic term for a "number" that is "not a number". Windows displays a NaN as -1.#IND ("IND" for "indeterminate") while Linux displays nan. Other operations that would return a NaN include 0/0, 0*8, and 8/8. See the sample code below for examples.
In short, if you get 1.#INF or inf, look for overflow or division by zero. If you get 1.#IND or nan, look for illegal operations. Maybe you simply have a bug. If it's more subtle and you have something that is difficult to compute, see Avoiding Overflow, Underflow, and Loss of Precision. That article gives tricks for computing results that have intermediate steps overflow if computed directly.
TL;DR The best solution is s.replace('.','',1).isdigit()
I did some benchmarks comparing the different approaches
def is_number_tryexcept(s):
""" Returns True is string is a number. """
try:
float(s)
return True
except ValueError:
return False
import re
def is_number_regex(s):
""" Returns True is string is a number. """
if re.match("^\d+?\.\d+?$", s) is None:
return s.isdigit()
return True
def is_number_repl_isdigit(s):
""" Returns True is string is a number. """
return s.replace('.','',1).isdigit()
If the string is not a number, the except-block is quite slow. But more importantly, the try-except method is the only approach that handles scientific notations correctly.
funcs = [
is_number_tryexcept,
is_number_regex,
is_number_repl_isdigit
]
a_float = '.1234'
print('Float notation ".1234" is not supported by:')
for f in funcs:
if not f(a_float):
print('\t -', f.__name__)
Float notation ".1234" is not supported by:
- is_number_regex
scientific1 = '1.000000e+50'
scientific2 = '1e50'
print('Scientific notation "1.000000e+50" is not supported by:')
for f in funcs:
if not f(scientific1):
print('\t -', f.__name__)
print('Scientific notation "1e50" is not supported by:')
for f in funcs:
if not f(scientific2):
print('\t -', f.__name__)
Scientific notation "1.000000e+50" is not supported by:
- is_number_regex
- is_number_repl_isdigit
Scientific notation "1e50" is not supported by:
- is_number_regex
- is_number_repl_isdigit
import timeit
test_cases = ['1.12345', '1.12.345', 'abc12345', '12345']
times_n = {f.__name__:[] for f in funcs}
for t in test_cases:
for f in funcs:
f = f.__name__
times_n[f].append(min(timeit.Timer('%s(t)' %f,
'from __main__ import %s, t' %f)
.repeat(repeat=3, number=1000000)))
where the following functions were tested
from re import match as re_match
from re import compile as re_compile
def is_number_tryexcept(s):
""" Returns True is string is a number. """
try:
float(s)
return True
except ValueError:
return False
def is_number_regex(s):
""" Returns True is string is a number. """
if re_match("^\d+?\.\d+?$", s) is None:
return s.isdigit()
return True
comp = re_compile("^\d+?\.\d+?$")
def compiled_regex(s):
""" Returns True is string is a number. """
if comp.match(s) is None:
return s.isdigit()
return True
def is_number_repl_isdigit(s):
""" Returns True is string is a number. """
return s.replace('.','',1).isdigit()
This works for me.
Create a network with
docker network create --subnet=172.17.0.0/16 selnet
Run docker image
docker run --net selnet --ip 172.18.0.2 hub
At first, I got
docker: Error response from daemon: Invalid address 172.17.0.2: It does not belong to any of this network's subnets.
ERRO[0000] error waiting for container: context canceled
Solution: Increased the 2nd quadruple of the IP [.18. instead of .17.]
I Dont Knew Which one Is Optimized (compared to @AdaTheDev ) but This one seems to be quicker when I use (atleast for me)
SELECT id FROM table_1 EXCEPT SELECT DISTINCT (table1_id) table1_id FROM table_2
If You want to get any other specific attribute you can use:
SELECT COUNT(*) FROM table_1 where id in (SELECT id FROM table_1 EXCEPT SELECT DISTINCT (table1_id) table1_id FROM table_2);
You can create an ExpandoObject like this:
IDictionary<string,object> expando = new ExpandoObject();
expando["Name"] = value;
And after casting it to dynamic, those values will look like properties:
dynamic d = expando;
Console.WriteLine(d.Name);
However, they are not actual properties and cannot be accessed using Reflection. So the following statement will return a null:
d.GetType().GetProperty("Name")
SpreadsheetGear for .NET is an Excel compatible spreadsheet component for .NET. You can see what our customers say about performance on the right hand side of our product page. You can try it yourself with the free, fully-functional evaluation.
In C, 'extern' is implied for function prototypes, as a prototype declares a function which is defined somewhere else. In other words, a function prototype has external linkage by default; using 'extern' is fine, but is redundant.
(If static linkage is required, the function must be declared as 'static' both in its prototype and function header, and these should normally both be in the same .c file).
// The answer that I was looking for when searching
public void Answer()
{
IEnumerable<YourClass> first = this.GetFirstIEnumerableList();
// Assign to empty list so we can use later
IEnumerable<YourClass> second = new List<YourClass>();
if (IwantToUseSecondList)
{
second = this.GetSecondIEnumerableList();
}
IEnumerable<SchemapassgruppData> concatedList = first.Concat(second);
}
The first function in an m-file (i.e. the main function), is invoked when that m-file is called. It is not required that the main function have the same name as the m-file, but for clarity it should. When the function and file name differ, the file name must be used to call the main function.
All subsequent functions in the m-file, called local functions (or "subfunctions" in the older terminology), can only be called by the main function and other local functions in that m-file. Functions in other m-files can not call them. Starting in R2016b, you can add local functions to scripts as well, although the scoping behavior is still the same (i.e. they can only be called from within the script).
In addition, you can also declare functions within other functions. These are called nested functions, and these can only be called from within the function they are nested. They can also have access to variables in functions in which they are nested, which makes them quite useful albeit slightly tricky to work with.
More food for thought...
There are some ways around the normal function scoping behavior outlined above, such as passing function handles as output arguments as mentioned in the answers from SCFrench and Jonas (which, starting in R2013b, is facilitated by the localfunctions
function). However, I wouldn't suggest making it a habit of resorting to such tricks, as there are likely much better options for organizing your functions and files.
For example, let's say you have a main function A
in an m-file A.m
, along with local functions D
, E
, and F
. Now let's say you have two other related functions B
and C
in m-files B.m
and C.m
, respectively, that you also want to be able to call D
, E
, and F
. Here are some options you have:
Put D
, E
, and F
each in their own separate m-files, allowing any other function to call them. The downside is that the scope of these functions is large and isn't restricted to just A
, B
, and C
, but the upside is that this is quite simple.
Create a defineMyFunctions
m-file (like in Jonas' example) with D
, E
, and F
as local functions and a main function that simply returns function handles to them. This allows you to keep D
, E
, and F
in the same file, but it doesn't do anything regarding the scope of these functions since any function that can call defineMyFunctions
can invoke them. You also then have to worry about passing the function handles around as arguments to make sure you have them where you need them.
Copy D
, E
and F
into B.m
and C.m
as local functions. This limits the scope of their usage to just A
, B
, and C
, but makes updating and maintenance of your code a nightmare because you have three copies of the same code in different places.
Use private functions! If you have A
, B
, and C
in the same directory, you can create a subdirectory called private
and place D
, E
, and F
in there, each as a separate m-file. This limits their scope so they can only be called by functions in the directory immediately above (i.e. A
, B
, and C
) and keeps them together in the same place (but still different m-files):
myDirectory/
A.m
B.m
C.m
private/
D.m
E.m
F.m
All this goes somewhat outside the scope of your question, and is probably more detail than you need, but I thought it might be good to touch upon the more general concern of organizing all of your m-files. ;)
None of those will do any extra copying. Even if RVO isn't used, the new standard says that move construction is preferred to copy when doing returns I believe.
I do believe that your second example causes undefined behavior though because you're returning a reference to a local variable.
I posted an answer to this already when someone else asked the same question (see How to bring back "Browser mode" in IE11?).
Read my answer there for a fuller explaination, but in short:
They removed it deliberately, because compat mode is not actually really very good for testing compatibility.
If you really want to test for compatibility with any given version of IE, you need to test in a real copy of that IE version. MS provide free VMs on http://modern.ie/ for you to use for this purpose.
The only way to get compat mode in IE11 is to set the X-UA-Compatible
header. When you have this and the site defaults to compat mode, you will be able to set the mode in dev tools, but only between edge or the specified compat mode; other modes will still not be available.
I am on Laravel 7.25 and I don't know if it supports on previous versions or not but Its pretty good.
public function joinSub($query, $as, $first, $operator = null, $second = null, $type = 'inner', $where = false)
Showing/Getting the user ID and the total number of posts by them left joining two tables users and posts.
return DB::table('users')
->joinSub('select user_id,count(id) noOfPosts from posts group by user_id', 'totalPosts', 'users.id', '=', 'totalPosts.user_id', 'left')
->select('users.name', 'totalPosts.noOfPosts')
->get();
If you don't wanna mention 'left' for leftjoin then you can use another prebuilt function
public function leftJoinSub($query, $as, $first, $operator = null, $second = null)
{
return $this->joinSub($query, $as, $first, $operator, $second, 'left');
}
And yeah, it actually calls the same function but it passes the join type itself. You can apply the same logic for other joins i.e. righJoinSub(...) etc.
Try this:
List<?>[] arrayOfLists = new List<?>[4];
Using a promise race solution will leave the request hanging and still consume bandwidth in the background and lower the max allowed concurrent request being made while it's still in process.
Instead use the AbortController to actually abort the request, Here is an example
const controller = new AbortController()
// 5 second timeout:
const timeoutId = setTimeout(() => controller.abort(), 5000)
fetch(url, { signal: controller.signal }).then(response => {
// completed request before timeout fired
// If you only wanted to timeout the request, not the response, add:
// clearTimeout(timeoutId)
})
AbortController can be used for other things as well, not only fetch but for readable/writable streams as well. More newer functions (specially promise based ones) will use this more and more. NodeJS have also implemented AbortController into its streams/filesystem as well. I know web bluetooth are looking into it also. Now it can also be used with addEventListener option and have it stop listening when the signal ends
I saw this error after updating the Android SDK to r17. The solution was to go to Help -> Update and get the latest version of the Android SDK to match.
This error getting because of the compiler not getting 'Context' class in your application. So, you can add it manually by Add --> Class and inherit it with 'DbContext' Class For Example :
public class MyDbContext : DbContext
{
public DbSet<Customer> Customer { get; set; }
public MyDbContext()
{
}
}
You should use a list comprehension:
>>> import pprint
>>> n = 3
>>> distance = [[[0 for k in xrange(n)] for j in xrange(n)] for i in xrange(n)]
>>> pprint.pprint(distance)
[[[0, 0, 0], [0, 0, 0], [0, 0, 0]],
[[0, 0, 0], [0, 0, 0], [0, 0, 0]],
[[0, 0, 0], [0, 0, 0], [0, 0, 0]]]
>>> distance[0][1]
[0, 0, 0]
>>> distance[0][1][2]
0
You could have produced a data structure with a statement that looked like the one you tried, but it would have had side effects since the inner lists are copy-by-reference:
>>> distance=[[[0]*n]*n]*n
>>> pprint.pprint(distance)
[[[0, 0, 0], [0, 0, 0], [0, 0, 0]],
[[0, 0, 0], [0, 0, 0], [0, 0, 0]],
[[0, 0, 0], [0, 0, 0], [0, 0, 0]]]
>>> distance[0][0][0] = 1
>>> pprint.pprint(distance)
[[[1, 0, 0], [1, 0, 0], [1, 0, 0]],
[[1, 0, 0], [1, 0, 0], [1, 0, 0]],
[[1, 0, 0], [1, 0, 0], [1, 0, 0]]]
func convertDateFormatter(date: String) -> String
{
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"//this your string date format
dateFormatter.timeZone = NSTimeZone(name: "UTC")
let date = dateFormatter.dateFromString(date)
dateFormatter.dateFormat = "yyyy MMM EEEE HH:mm"///this is what you want to convert format
dateFormatter.timeZone = NSTimeZone(name: "UTC")
let timeStamp = dateFormatter.stringFromDate(date!)
return timeStamp
}
Updated for Swift 3.
func convertDateFormatter(date: String) -> String
{
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"//this your string date format
dateFormatter.timeZone = NSTimeZone(name: "UTC") as TimeZone!
let date = dateFormatter.date(from: date)
dateFormatter.dateFormat = "yyyy MMM EEEE HH:mm"///this is what you want to convert format
dateFormatter.timeZone = NSTimeZone(name: "UTC") as TimeZone!
let timeStamp = dateFormatter.string(from: date!)
return timeStamp
}
I had the exact issue, tried several soultion didnt work , lastly restarted the system , it worked fine.
In my case, one of the event handler task was pointing to old connection which was deleted, deleting the unused event handler task fixed the problem. I end up opening the package in XML format to understand that the problem is with event handler task!
What it does:
if set to "true", any cached data used by the OSGi framework and eclipse runtime will be wiped clean. This will clean the caches used to store bundle dependency resolution and eclipse extension registry data. Using this option will force eclipse to reinitialize these caches.
How to use it:
eclipse.ini
file located in your Eclipse install directory and insert -clean
as the first line. -clean
as the first argument. -clean
argument. The advantage to this step is you can keep the script around and use it each time you want to clean out the workspace. You can name it something like eclipse-clean.bat
(or eclipse-clean.sh
). (From: http://www.eclipsezone.com/eclipse/forums/t61566.html)
Other eclipse command line options: http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fmisc%2Fruntime-options.html
I have quickly made a function that can achieve this, it may not be the best way to do this but it simply works and should be cross browser, please also know that i am NOT a expert in JavaScript so any tips are great :)
function createElement(){
var element = document.createElement(arguments[0]),
text = arguments[1],
attr = arguments[2],
append = arguments[3],
appendTo = arguments[4];
for(var key = 0; key < Object.keys(attr).length ; key++){
var name = Object.keys(attr)[key],
value = attr[name],
tempAttr = document.createAttribute(name);
tempAttr.value = value;
element.setAttributeNode(tempAttr)
}
if(append){
for(var _key = 0; _key < append.length; _key++) {
element.appendChild(append[_key]);
}
}
if(text) element.appendChild(document.createTextNode(text));
if(appendTo){
var target = appendTo === 'body' ? document.body : document.getElementById(appendTo);
target.appendChild(element)
}
return element;
}
lets see how we make this
<select name="drop1" id="Select1">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
here's how it works
var options = [
createElement('option', 'Volvo', {value: 'volvo'}),
createElement('option', 'Saab', {value: 'saab'}),
createElement('option', 'Mercedes', {value: 'mercedes'}),
createElement('option', 'Audi', {value: 'audi'})
];
createElement('select', null, // 'select' = name of element to create, null = no text to insert
{id: 'Select1', name: 'drop1'}, // Attributes to attach
[options[0], options[1], options[2], options[3]], // append all 4 elements
'body' // append final element to body - this also takes a element by id without the #
);
this is the params
createElement('tagName', 'Text to Insert', {any: 'attribute', here: 'like', id: 'mainContainer'}, [elements, to, append, to, this, element], 'body || container = where to append this element');
This function would suit if you have to append many element, if there is any way to improve this answer please let me know.
edit:
Here is a working demo
This can be highly customized to suit your project!
If you already have a directory in /usr/local
for the package you're installing, you can try deleting this directory.
In my case I had previously installed the package I was trying to install without using brew, and had then uninstalled it. There was a directory /usr/local/<my_package>/
left over from that previous install. I deleted this folder (sudo rm -rf /usr/local/<my_package>/
) and after that the brew link step was successful.
You don't need 2 style attributes - just use one:
<img src="http://img705.imageshack.us/img705/119/original120x75.png"
style="height:100px;width:100px;" alt="25"/>
Consider, however, using a CSS class instead:
CSS:
.100pxSquare
{
width: 100px;
height: 100px;
}
HTML:
<img src="http://img705.imageshack.us/img705/119/original120x75.png"
class="100pxSquare" alt="25"/>
I've created a simple example tutorial. You can read this and use in your application.
http://ribinsandroidhelper.blogspot.in/2013/03/qr-code-reading-on-your-application.html
Through this link you can download the qrcode library project and import into your workspace and add library to your project
and copy this code to your activity
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
startActivityForResult(intent, 0);
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
Toast.makeText(this, contents,Toast.LENGTH_LONG).show();
// Handle successful scan
} else if (resultCode == RESULT_CANCELED) {
//Handle cancel
}
}
}
[ "$(pidof -x $(basename $0))" != $$ ] && exit
https://github.com/x-zhao/exit-if-bash-script-already-running/blob/master/script.sh
Because I recently needed this, I looked at the source of the answer in:
c# extend class by adding properties
and created a more dynamic version:
public static class ObjectExtenders
{
static readonly ConditionalWeakTable<object, List<stringObject>> Flags = new ConditionalWeakTable<object, List<stringObject>>();
public static string GetFlags(this object objectItem, string key)
{
return Flags.GetOrCreateValue(objectItem).Single(x => x.Key == key).Value;
}
public static void SetFlags(this object objectItem, string key, string value)
{
if (Flags.GetOrCreateValue(objectItem).Any(x => x.Key == key))
{
Flags.GetOrCreateValue(objectItem).Single(x => x.Key == key).Value = value;
}
else
{
Flags.GetOrCreateValue(objectItem).Add(new stringObject()
{
Key = key,
Value = value
});
}
}
class stringObject
{
public string Key;
public string Value;
}
}
It can probably be improved a lot (naming, dynamic instead of string), I currently use this in CF 3.5 together with a hacky ConditionalWeakTable (https://gist.github.com/Jan-WillemdeBruyn/db79dd6fdef7b9845e217958db98c4d4)
<IF>
<CONDITIONS>
<CONDITION field="time" from="5pm" to="9pm"></CONDITION>
</CONDITIONS>
<RESULTS><...some actions defined.../></RESULTS>
<ELSE>
<RESULTS><...some other actions defined.../></RESULTS>
</ELSE>
</IF>
Here's my take on it. This will allow you to have multiple conditions.
The instructions in @bsdnoobz answer are indeed helpful, but didn't get OpenCV to work on my system.
Apparently I needed to compile the library myself in order to get it to work, and not count on the pre-built binaries (which caused my programs to crash, probably due to incompatibility with my system).
I did get it to work, and wrote a comprehensive guide for compiling and installing OpenCV, and configuring Netbeans to work with it.
For completeness, it is also provided below.
When I first started using OpenCV, I encountered two major difficulties:
I read many tutorials and "how-to" articles, but none was really comprehensive and thorough. Eventually I succeeded in setting up the environment; and after a while of using this (great) library, I decided to write this small tutorial, which will hopefully help others.
The are three parts to this tutorial:
The environment I use is: Windows 7, OpenCV 2.4.0, Netbeans 7 and MinGW 3.20 (with compiler gcc 4.6.2).
Assumptions: You already have MinGW and Netbeans installed on your system.
When downloading OpenCV, the archive actually already contains pre-built binaries (compiled libraries and DLL's) in the 'build' folder. At first, I tried using those binaries, assuming somebody had already done the job of compiling for me. That didn't work.
Eventually I figured I have to compile the entire library on my own system in order for it to work properly.
Luckily, the compilation process is rather easy, thanks to CMake. CMake (stands for Cross-platform Make) is a tool which generates makefiles specific to your compiler and platform. We will use CMake in order to configure our building and compilation settings, generate a 'makefile', and then compile the library.
The steps are:
c:/opencv/
.c:/opencv/
.c:/opencv/release
.c:/opencv/release/
.mingw32-make
and press enter. This should start the compilation
process.C:/opencv/release/bin
to the system PATH. This will make sure our programs can find the
needed DLL's to run.Netbeans should be told where to find the header files and the compiled libraries (which were created in the previous section).
The header files are needed for two reasons: for compilation and for code completion. The compiled libraries are needed for the linking stage.
Note: In order for debugging to work, the OpenCV DLL's should be available, which is why we added the directory which contains them to the system PATH (previous section, step 5.4).
First, you should verify that Netbeans is configured correctly to work with
MinGW. Please see the screenshot below and verify your settings are correct
(considering paths changes according to your own installation). Also note
that the make
command should be from msys and not from Cygwin.
Next, for each new project you create in Netbeans, you should define the include path (the directory which contains the header files), the libraries path and the specific libraries you intend to use. Right-click the project name in the 'projects' pane, and choose 'properties'. Add the include path (modify the path according to your own installation):
Add the libraries path:
Add the specific libraries you intend to use. These libraries will be
dynamically linked to your program in the linking stage. Usually you will need
the core
library plus any other libraries according to the specific needs of
your program.
That's it, you are now ready to use OpenCV!
Here are the general steps you need to complete in order to install OpenCV and use it with Netbeans:
Here is a small example program which draws the text "Hello World : )" on a GUI window. You can use it to check that your installation works correctly. After compiling and running the program, you should see the following window:
#include "opencv2/opencv.hpp"
#include "opencv2/highgui/highgui.hpp"
using namespace cv;
int main(int argc, char** argv) {
//create a gui window:
namedWindow("Output",1);
//initialize a 120X350 matrix of black pixels:
Mat output = Mat::zeros( 120, 350, CV_8UC3 );
//write text on the matrix:
putText(output,
"Hello World :)",
cvPoint(15,70),
FONT_HERSHEY_PLAIN,
3,
cvScalar(0,255,0),
4);
//display the image:
imshow("Output", output);
//wait for the user to press any key:
waitKey(0);
return 0;
}
I think this will work even though this was forever ago.
SELECT employee_number, Row_Number()
OVER (PARTITION BY course_code ORDER BY course_completion_date DESC ) as rownum
FROM employee_course_completion
WHERE course_code IN ('M910303', 'M91301R', 'M91301P')
AND rownum = 1
If you want to get the last Id if the date is the same then you can use this assuming your primary key is Id.
SELECT employee_number, Row_Number()
OVER (PARTITION BY course_code ORDER BY course_completion_date DESC, Id Desc) as rownum FROM employee_course_completion
WHERE course_code IN ('M910303', 'M91301R', 'M91301P')
AND rownum = 1
For testing purposes I use the following:
//return assoc array when called from outside the class it will only contain public properties and values
var_dump(get_object_vars($obj));
This is how I do it
public void B_ODOC_OnClick(Object sender, EventArgs e)
{
string script="<script>__doPostBack(\'fileView$ctl01$OTHDOC\',\'{\"EventArgument\":\"OpenModal\",\"EncryptedData\":null}\');</script>";
Page.ClientScript.RegisterStartupScript(this.GetType(),"JsOtherDocuments",script);
}
If you prefer (I need to apply this) group by two columns at same time, I just saw this point:
SELECT CONCAT (col1, '_', col2) AS Group1 ... GROUP BY Group1
i think you can use more than one class in a tag
for example:
<div class="whatever base"></div>
<div class="whatever2 base"></div>
so when you want to chage all div's color you can just change the .base
...i dont know how to inherit in CSS
You may try this:
Page::where('id', $id)->update(array('image' => 'asdasd'));
There are other ways too but no need to use Page::find($id);
in this case. But if you use find()
then you may try it like this:
$page = Page::find($id);
// Make sure you've got the Page model
if($page) {
$page->image = 'imagepath';
$page->save();
}
Also you may use:
$page = Page::findOrFail($id);
So, it'll throw an exception if the model with that id was not found.
I am not much of a coder nor an expert in CSS, but I am still using your idea in my web designs. I have tried different resolutions too:
#wrapper {_x000D_
margin: 0 auto;_x000D_
width: 901px;_x000D_
height: 100%;_x000D_
background-color: #f7f7f7;_x000D_
background-image: url(images/wrapperback.gif);_x000D_
color: #000;_x000D_
}_x000D_
#header {_x000D_
float: left;_x000D_
width: 100.00%;_x000D_
height: 122px;_x000D_
background-color: #00314e;_x000D_
background-image: url(images/header.jpg);_x000D_
color: #fff;_x000D_
}_x000D_
#menu {_x000D_
float: left;_x000D_
padding-top: 20px;_x000D_
margin-left: 495px;_x000D_
width: 390px;_x000D_
color: #f1f1f1;_x000D_
}
_x000D_
<div id="wrapper">_x000D_
<div id="header">_x000D_
<div id="menu">_x000D_
menu will go here_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
Of course there will be a wrapper around both of them. You can control the location of the menu div which will be displayed within the header div with left margins and top positions. You can also set the div menu to float right if you like.
If you're using membership you can do: Membership.GetUser()
Your code is returning the Windows account which is assigned with ASP.NET.
Additional Info Edit: You will want to include System.Web.Security
using System.Web.Security
The <style>
tag belongs in the <head>
section, separate from all the content.
If you'd like to have your JAVA_HOME recognised by intellij, you can do one of these:
launchctl setenv JAVA_HOME "/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home"
As others have answered you can ignore JAVA_HOME by setting up SDK in project structure.
On MAC Remove gradle-2.1-all folder from the following path /Users/amitsapra/.gradle/wrapper/dists/gradle-2.1-all and then try gradle build again. I faced same issues with 5.4.1-all.
It takes a little time but fixes everything
You need to look for "waiting to lock" in /data/anr/traces.txt file
for more details: Engineer for High Performance with Tools from Android & Play (Google I/O '17)
In your code you are assigning a native method to a property of custom object.
When you call support.animationFrame(function () {})
, it is executed in the context of current object (ie support). For the native requestAnimationFrame function to work properly, it must be executed in the context of window
.
So the correct usage here is support.animationFrame.call(window, function() {});
.
The same happens with alert too:
var myObj = {
myAlert : alert //copying native alert to an object
};
myObj.myAlert('this is an alert'); //is illegal
myObj.myAlert.call(window, 'this is an alert'); // executing in context of window
Another option is to use Function.prototype.bind() which is part of ES5 standard and available in all modern browsers.
var _raf = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame ||
window.oRequestAnimationFrame;
var support = {
animationFrame: _raf ? _raf.bind(window) : null
};
The java application takes too long to respond(maybe due start-up/jvm being cold) thus you get the proxy error.
Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /lin/Campaignn.jsp.
As Albert Maclang said amending the http timeout configuration may fix the issue. I suspect the java application throws a 500+ error thus the apache gateway error too. You should look in the logs.
Any seaborn plots suported by facetgrid won't work with (e.g. catplot)
g.set_xticklabels(rotation=30)
however barplot, countplot, etc. will work as they are not supported by facetgrid. Below will work for them.
g.set_xticklabels(g.get_xticklabels(), rotation=30)
Also, in case you have 2 graphs overlayed on top of each other, try set_xticklabels on graph which supports it.
You need to have the System.Linq
namespace included in your view since Select is an extension method. You have a couple of options on how to do this:
Add @using System.Linq
to the top of your cshtml file.
If you find that you will be using this namespace often in many of your views, you can do this for all views by modifying the web.config inside of your Views folder (not the one at the root). You should see a pages/namespace XML element, create a new add
child that adds System.Linq. Here is an example:
<configuration>
<system.web.webPages.razor>
<pages>
<namespaces>
<add namespace="System.Linq" />
</namespaces>
</pages>
</system.web.webPages.razor>
</configuration>
I am going to use an example to add to the answers above.
I ran into proxy issues while trying to install packages via Web Platform Installer
That too uses a config file which is WebPlatformInstaller.exe.config
I tried the edits suggest in this IIS forum which is
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.net>
<defaultProxy enabled="True" useDefaultCredentials="True"/>
</system.net>
</configuration>
and
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.net>
<defaultProxy>
<proxy
proxyaddress="http://yourproxy.company.com:80"
usesystemdefault="True"
autoDetect="False" />
</defaultProxy>
</system.net>
</configuration>
None of these worked.
What worked for me was this -
<system.net>
<defaultProxy enabled="true" useDefaultCredentials="false">
<module type="WebPI.Net.AuthenticatedProxy, WebPI.Net, Version=1.0.0.0, Culture=neutral, PublicKeyToken=79a8d77199cbf3bc" />
</defaultProxy>
</system.net>
The module needed to be registered with Web Platform Installer in order to use it.
COUNT is part of pig see the manual
LOGS= LOAD 'log';
LOGS_GROUP= GROUP LOGS ALL;
LOG_COUNT = FOREACH LOGS_GROUP GENERATE COUNT(LOGS);
You can get a shorter version by using sys.path[0]
.
os.chdir(sys.path[0])
From http://docs.python.org/library/sys.html#sys.path
As initialized upon program startup, the first item of this list,
path[0]
, is the directory containing the script that was used to invoke the Python interpreter
%d
is for integers use %f
instead, it works for both float
and double
types:
double d = 1.2;
float f = 1.2f;
System.out.printf("%f %f",d,f); // prints 1.200000 1.200000
In my case it was because I was using a port other than the default port 80. I was able to access the site locally using localhost but not on another machine using the IP address.
To solve the issue I had to add a firewall inbound rule to allow the port.
I have solved the Problem by changing style.xml
<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
</style>
this was an awesom solution.
Adding an answer more complete example over a previous answer
<property name="propB_" value="${propA}"/>
<loadresource property="propB">
<propertyresource name="propB_" />
<filterchain>
<tokenfilter>
<replaceregex pattern="\." replace="/" flags="g"/>
</tokenfilter>
</filterchain>
</loadresource>
Seaborn's barplot returns an axis-object (not a figure). This means you can do the following:
import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt
fake = pd.DataFrame({'cat': ['red', 'green', 'blue'], 'val': [1, 2, 3]})
ax = sns.barplot(x = 'val', y = 'cat',
data = fake,
color = 'black')
ax.set(xlabel='common xlabel', ylabel='common ylabel')
plt.show()
I'm adding Bard Park's comment here for that was the real answer for me:
Since mvim is simply a shell script, you can download it directly from the MacVim source at GitHub here: http://raw.github.com/b4winckler/macvim/master/src/MacVim/mvim
git checkout master # first get back to master
git checkout experiment -- app.js # then copy the version of app.js
# from branch "experiment"
See also git how to undo changes of one file?
With the new git switch
and git restore
commands, that would be:
git switch master
git restore --source experiment -- app.js
By default, only the working tree is restored.
If you want to update the index as well (meaning restore the file content, and add it to the index in one command):
git restore --source experiment --staged --worktree -- app.js
# shorter:
git restore -s experiment -SW -- app.js
As Jakub Narebski mentions in the comments:
git show experiment:path/to/app.js > path/to/app.js
works too, except that, as detailed in the SO question "How to retrieve a single file from specific revision in Git?", you need to use the full path from the root directory of the repo.
Hence the path/to/app.js used by Jakub in his example.
As Frosty mentions in the comment:
you will only get the most recent state of app.js
But, for git checkout
or git show
, you can actually reference any revision you want, as illustrated in the SO question "git checkout revision of a file in git gui":
$ git show $REVISION:$FILENAME
$ git checkout $REVISION -- $FILENAME
would be the same is $FILENAME is a full path of a versioned file.
$REVISION
can be as shown in git rev-parse
:
experiment@{yesterday}:app.js # app.js as it was yesterday
experiment^:app.js # app.js on the first commit parent
experiment@{2}:app.js # app.js two commits ago
and so on.
schmijos adds in the comments:
you also can do this from a stash:
git checkout stash -- app.js
This is very useful if you're working on two branches and don't want to commit.
Open the svg using Inkscape.
Inkscape is a svg editor it is a bit like Illustrator but as it is built specifically for svg it handles it way better. It is a free software and it's available @ https://inkscape.org/en/
done
all rect/circle have been converted to path
So you should be able to do:
Whatever.declaredMethods
.find { it.name == 'aMethod' }
.parameters
.collect { "$it.type : $it.name" }
But you'll probably get a list like so:
["int : arg0"]
I believe this will be fixed in Groovy 2.5+
So currently, the answer is:
See also:
For every method, then something like:
Whatever.declaredMethods
.findAll { !it.synthetic }
.collect { method ->
println method
method.name + " -> " + method.parameters.collect { "[$it.type : $it.name]" }.join(';')
}
.each {
println it
}
I got this error when I did a git merge BRANCH_NAME "some commit message"
- I'd forgotten to add the -m flag for the commit message, so it thought that the branch name included the comment.
You have to make the UL
inside the div
behave like a block. Try adding
.navigation ul {
display: inline-block;
}
Joining lines with svgs was worth a shot for me, and it worked perfectly...
first of all, Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation. SVG images and their behaviors are defined in XML text files. you can create an svg in HTML using <svg>
tag. Adobe Illustrator is one of the best software used to create an complex svgs using paths.
Procedure to join two divs using a line :
create two divs and give them any position as you need
<div id="div1" style="width: 100px; height: 100px; top:0; left:0; background:#e53935 ; position:absolute;"></div>
<div id="div2" style="width: 100px; height: 100px; top:0; left:300px; background:#4527a0 ; position:absolute;"></div>
(for the sake of explanation I am doing some inline styling but it is always good to make a separate css file for styling)
<svg><line id="line1"/></svg>
Line tag allows us to draw a line between two specified points(x1,y1) and (x2,y2). (for a reference visit w3schools.) we haven't specified them yet. because we will be using jQuery to edit the attributes (x1,y1,x2,y2) of line tag.
in <script>
tag write
line1 = $('#line1');
div1 = $('#div1');
div2 = $('#div2');
I used selectors to select the two divs and line...
var pos1 = div1.position();
var pos2 = div2.position();
jQuery position()
method allows us to obtain the current position of an element. For more information, visit https://api.jquery.com/position/ (you can use offset()
method too)
Now as we have obtained all the positions we need we can draw line as follows...
line1
.attr('x1', pos1.left)
.attr('y1', pos1.top)
.attr('x2', pos2.left)
.attr('y2', pos2.top);
jQuery .attr()
method is used to change attributes of the selected element.
All we did in above line is we changed attributes of line from
x1 = 0
y1 = 0
x2 = 0
y2 = 0
to
x1 = pos1.left
y1 = pos1.top
x2 = pos2.left
y2 = pos2.top
as position()
returns two values, one 'left' and other 'top', we can easily access them using .top and .left using the objects (here pos1 and pos2) ...
Now line tag has two distinct co-ordinates to draw line between two points.
Tip: add event listeners as you need to divs
Tip: make sure you import jQuery library first before writing anything in script tag
After adding co-ordinates through JQuery ... It will look something like this
Following snippet is for demonstration purpose only, please follow steps above to get correct solution
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="div1" style="width: 100px; height: 100px; top:0; left:0; background:#e53935 ; position:absolute;"></div>_x000D_
<div id="div2" style="width: 100px; height: 100px; top:0; left:300px; background:#4527a0 ; position:absolute;"></div>_x000D_
<svg width="500" height="500"><line x1="50" y1="50" x2="350" y2="50" stroke="red"/></svg>
_x000D_
Why the value had to be given in yyyy-MM-dd?
According to the input type = date spec of HTML 5, the value has to be in the format yyyy-MM-dd
since it takes the format of a valid full-date
which is specified in RFC3339 as
full-date = date-fullyear "-" date-month "-" date-mday
There is nothing to do with Angularjs since the directive input doesn't support date
type.
How do I get Firefox to accept my formatted value in the date input?
FF doesn't support date
type of input for at least up to the version 24.0. You can get this info from here. So for right now, if you use input with type being date
in FF, the text box takes whatever value you pass in.
My suggestion is you can use Angular-ui's Timepicker and don't use the HTML5 support for the date input.
Reducing the image size before output results in something that looks sharper, in my case:
convert -density 300 a.pdf -resize 25% a.png