Here's the briefest explanation:
A Turing Complete system means a system in which a program can be written that will find an answer (although with no guarantees regarding runtime or memory).
So, if somebody says "my new thing is Turing Complete" that means in principle (although often not in practice) it could be used to solve any computation problem.
Sometimes it's a joke... a guy wrote a Turing Machine simulator in vi, so it's possible to say that vi is the only computational engine ever needed in the world.
CSS is not a programming language, so the question of turing-completeness is a meaningless one. If programming extensions are added to CSS such as was the case in IE6 then that new synthesis is a whole different thing.
CSS is merely a description of styles; it does not have any logic, and its structure is flat.
Use file module to create a directory and get the details about file module using command "ansible-doc file"
Here is an option "state" that explains:
If
directory
, all immediate subdirectories will be created if they do not exist, since 1.7 they will be created with the supplied permissions.
Iffile
, the file will NOT be created if it does not exist, see the [copy] or [template] module if you want that behavior.
Iflink
, the symbolic link will be created or changed. Usehard
for hardlinks.
Ifabsent
, directories will be recursively deleted, and files or symlinks will be unlinked.Note that
file
will not fail if the path does not exist as the state did not change.If
touch
(new in 1.4), an empty file will be created if the path does not exist, while an existing file or directory will receive updated file access and modification times (similar to the waytouch
works from the command line).
I got the same problem, in my case I was using svn tortoise with the application I mean. Using the cmd shell of windows in root mode I applied svn cleanup and then svn update.... Then you can comeback to the application mode aand it will work perfectly!
You may want to use:
SELECT Name, 'Unpaid' AS Status FROM table;
The SELECT
clause syntax, as defined in MSDN: SELECT Clause (Transact-SQL), is as follows:
SELECT [ ALL | DISTINCT ]
[ TOP ( expression ) [ PERCENT ] [ WITH TIES ] ]
<select_list>
Where the expression
can be a constant, function, any combination of column names, constants, and functions connected by an operator or operators, or a subquery.
Lodash:
var args = _.toArray(arguments);
in action:
(function(){ console.log(_.toArray(arguments).splice(1)); })(1, 2, 3)
produces:
[2,3]
You need to put the entire ternary expression in parenthesis. Unfortunately that means you can't use "@:", but you could do something like this:
@(deletedView ? "Deleted" : "Created by")
Razor currently supports a subset of C# expressions without using @() and unfortunately, ternary operators are not part of that set.
Starting with C# 8.0, you can use the ??= operator to replace the code of the form
if (variable is null)
{
variable = expression;
}
with the following code:
variable ??= expression;
More information is here
In PHP use .=
to append strings, and not +=
.
Why does this output 0? [...] Does PHP not like += with strings?
+=
is an arithmetic operator to add a number to another number. Using that operator with strings leads to an automatic type conversion. In the OP's case the strings have been converted to integers of the value 0
.
More about operators in PHP:
OMG, I tried to find a simple solution to this for hours. I knew the code was simple but no one provided me what I wanted. So finally got to work on some example code and made something simple that anyone can use no JQuery required. Simple javascript and css and html. In order for the animation to work you have to set the height and width or the animation wont work. Found that out the hard way.
<script>
function dostuff() {
if (document.getElementById('MyBox').style.height == "0px") {
document.getElementById('MyBox').setAttribute("style", "background-color: #45CEE0; height: 200px; width: 200px; transition: all 2s ease;");
}
else {
document.getElementById('MyBox').setAttribute("style", "background-color: #45CEE0; height: 0px; width: 0px; transition: all 2s ease;");
}
}
</script>
<div id="MyBox" style="height: 0px; width: 0px;">
</div>
<input type="button" id="buttontest" onclick="dostuff()" value="Click Me">
$unixtime_to_date = date('jS F Y h:i:s A (T)', $unixtime);
This should work to.
As long as the macros in question are in the same workbook and you verify the names exist, you can call those macros from any other module by name, not by module.
So if in Module1 you had two macros Macro1 and Macro2 and in Module2 you had Macro3 and Macro 4, then in another macro you could call them all:
Sub MasterMacro()
Call Macro1
Call Macro2
Call Macro3
Call Macro4
End Sub
Having the same problem. I searched on Google and I want to share with stackoverflow community this solution.
Important:
I used the function shared by Yan Qing on github https://gist.github.com/zensh/4975495
function memorySizeOf(obj) {_x000D_
var bytes = 0;_x000D_
_x000D_
function sizeOf(obj) {_x000D_
if(obj !== null && obj !== undefined) {_x000D_
switch(typeof obj) {_x000D_
case 'number':_x000D_
bytes += 8;_x000D_
break;_x000D_
case 'string':_x000D_
bytes += obj.length * 2;_x000D_
break;_x000D_
case 'boolean':_x000D_
bytes += 4;_x000D_
break;_x000D_
case 'object':_x000D_
var objClass = Object.prototype.toString.call(obj).slice(8, -1);_x000D_
if(objClass === 'Object' || objClass === 'Array') {_x000D_
for(var key in obj) {_x000D_
if(!obj.hasOwnProperty(key)) continue;_x000D_
sizeOf(obj[key]);_x000D_
}_x000D_
} else bytes += obj.toString().length * 2;_x000D_
break;_x000D_
}_x000D_
}_x000D_
return bytes;_x000D_
};_x000D_
_x000D_
function formatByteSize(bytes) {_x000D_
if(bytes < 1024) return bytes + " bytes";_x000D_
else if(bytes < 1048576) return(bytes / 1024).toFixed(3) + " KiB";_x000D_
else if(bytes < 1073741824) return(bytes / 1048576).toFixed(3) + " MiB";_x000D_
else return(bytes / 1073741824).toFixed(3) + " GiB";_x000D_
};_x000D_
_x000D_
return formatByteSize(sizeOf(obj));_x000D_
};_x000D_
_x000D_
_x000D_
var sizeOfStudentObject = memorySizeOf({Student: {firstName: 'firstName', lastName: 'lastName', marks: 10}});_x000D_
console.log(sizeOfStudentObject);
_x000D_
What do you think about it?
There is a way to turn the validation back to 2.0 for one page. Just add the below code to your web.config:
<configuration>
<location path="XX/YY">
<system.web>
<httpRuntime requestValidationMode="2.0" />
</system.web>
</location>
...
the rest of your configuration
...
</configuration>
Most easy way: sort files with sort(1) and then use diff(1).
If you're inserting text content in your document in a location where text content is expected1, you typically only need to escape the same characters as you would in XML. Inside of an element, this just includes the entity escape ampersand &
and the element delimiter less-than and greater-than signs <
>
:
& becomes &
< becomes <
> becomes >
Inside of attribute values you must also escape the quote character you're using:
" becomes "
' becomes '
In some cases it may be safe to skip escaping some of these characters, but I encourage you to escape all five in all cases to reduce the chance of making a mistake.
If your document encoding does not support all of the characters that you're using, such as if you're trying to use emoji in an ASCII-encoded document, you also need to escape those. Most documents these days are encoded using the fully Unicode-supporting UTF-8 encoding where this won't be necessary.
In general, you should not escape spaces as
.
is not a normal space, it's a non-breaking space. You can use these instead of normal spaces to prevent a line break from being inserted between two words, or to insert extra space without it being automatically collapsed, but this is usually a rare case. Don't do this unless you have a design constraint that requires it.
1 By "a location where text content is expected", I mean inside of an element or quoted attribute value where normal parsing rules apply. For example: <p>HERE</p>
or <p title="HERE">...</p>
. What I wrote above does not apply to content that has special parsing rules or meaning, such as inside of a script or style tag, or as an element or attribute name. For example: <NOT-HERE>...</NOT-HERE>
, <script>NOT-HERE</script>
, <style>NOT-HERE</style>
, or <p NOT-HERE="...">...</p>
.
In these contexts, the rules are more complicated and it's much easier to introduce a security vulnerability. I strongly discourage you from ever inserting dynamic content in any of these locations. I have seen teams of competent security-aware developers introduce vulnerabilities by assuming that they had encoded these values correctly, but missing an edge case. There's usually a safer alternative, such as putting the dynamic value in an attribute and then handling it with JavaScript.
If you must, please read the Open Web Application Security Project's XSS Prevention Rules to help understand some of the concerns you will need to keep in mind.
Look at
For Each c as DataColumn in dt.Columns
'... = c.ColumnName
Next
or:
dt.GetDataTableSchema(...)
Java 8 provides the option of using streams and you can get a list from Set<String> setString
as:
List<String> stringList = setString.stream().collect(Collectors.toList());
Though the internal implementation as of now provides an instance of ArrayList
:
public static <T>
Collector<T, ?, List<T>> toList() {
return new CollectorImpl<>((Supplier<List<T>>) ArrayList::new, List::add,
(left, right) -> { left.addAll(right); return left; },
CH_ID);
}
but JDK does not guarantee it. As mentioned here:
There are no guarantees on the type, mutability, serializability, or thread-safety of the List returned; if more control over the returned List is required, use toCollection(Supplier).
In case you want to be sure always then you can request for an instance specifically as:
List<String> stringArrayList = setString.stream()
.collect(Collectors.toCollection(ArrayList::new));
Make a javascript function
function addSampleTextInInputBox(message) {
//set value in input box
document.getElementById('textInput').value = message + "";
//or show an alert
//window.alert(message);
}
Then simply call in your table row button click
<td class="center">
<a class="btn btn-success" onclick="addSampleTextInInputBox('<?php echo $row->message; ?>')" title="Add" data-toggle="tooltip" title="Add">
<span class="fa fa-plus"></span>
</a>
</td>
with a little help of math
#include <math.h>
int main(){
int a = -1;
unsigned int b;
b = abs(a);
}
In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?
Session.Abandon() destroys the session and the Session_OnEnd event is triggered.
Session.Clear() just removes all values (content) from the Object. The session with the same key is still alive.
So, if you use Session.Abandon(), you lose that specific session and the user will get a new session key. You could use it for example when the user logs out.
Use Session.Clear(), if you want that the user remaining in the same session (if you don't want him to relogin for example) and reset all his session specific data.
What is the difference between Session.Abandon() and Session.Clear()
Clear - Removes all keys and values from the session-state collection.
Abandon - removes all the objects stored in a Session. If you do not call the Abandon method explicitly, the server removes these objects and destroys the session when the session times out. It also raises events like Session_End.
Session.Clear can be compared to removing all books from the shelf, while Session.Abandon is more like throwing away the whole shelf.
...
Generally, in most cases you need to use Session.Clear. You can use Session.Abandon if you are sure the user is going to leave your site.
So back to the differences:
- Abandon raises Session_End request.
- Clear removes items immediately, Abandon does not.
- Abandon releases the SessionState object and its items so it can garbage collected.
- Clear keeps SessionState and resources associated with it.
Session.Clear() or Session.Abandon() ?
You use Session.Clear() when you don't want to end the session but rather just clear all the keys in the session and reinitialize the session.
Session.Clear() will not cause the Session_End eventhandler in your Global.asax file to execute.
But on the other hand Session.Abandon() will remove the session altogether and will execute Session_End eventhandler.
Session.Clear() is like removing books from the bookshelf
Session.Abandon() is like throwing the bookshelf itself.
Question
I check on some sessions if not equal null in the page load. if one of them equal null i wanna to clear all the sessions and redirect to the login page?
Answer
If you want the user to login again, use Session.Abandon.
If you want to put a view in the center of parent, you can do with following code..
public class myLayout extends LinearLayout {
public myLayout(Context context) {
super(context);
RelativeLayout vi = (RelativeLayout) ((LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
R.layout.activity_main, null);
LinearLayout.LayoutParams cc = new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
cc.gravity = Gravity.CENTER;
this.setGravity(Gravity.CENTER);
this.addView(vi);
}
}
these code section make LinearLayout put the first view elements in the center of parent. So, we system don't consider the initial width and high to arrange view in the center . I do the code section well.
You can use thread waiting handler
private readonly System.Threading.EventWaitHandle waitHandle = new System.Threading.AutoResetEvent(false);
private void btnOk_Click(object sender, EventArgs e)
{
// Do some work
Task<string> task = Task.Run(() => GreatBigMethod());
string GreatBigMethod = await task;
// Wait until condition is false
waitHandle.WaitOne();
Console.WriteLine("Excel is busy");
waitHandle.Reset();
// Do work
Console.WriteLine("YAY");
}
then some other job need to set your handler
void isExcelInteractive()
{
/// Do your check
waitHandle.Set()
}
Update: If you want use this solution, you have to call isExcelInteractive() continuously with specific interval:
var actions = new []{isExcelInteractive, () => Thread.Sleep(25)};
foreach (var action in actions)
{
action();
}
This will draw a line that passes through the points (-1, 1) and (12, 4), and another one that passes through the points (1, 3) et (10, 2)
x1 are the x coordinates of the points for the first line, y1 are the y coordinates for the same -- the elements in x1 and y1 must be in sequence.
x2 and y2 are the same for the other line.
import matplotlib.pyplot as plt
x1, y1 = [-1, 12], [1, 4]
x2, y2 = [1, 10], [3, 2]
plt.plot(x1, y1, x2, y2, marker = 'o')
plt.show()
I suggest you spend some time reading / studying the basic tutorials found on the very rich matplotlib website to familiarize yourself with the library.
There are no direct ways to have lines extend to infinity... matplotlib will either resize/rescale the plot so that the furthest point will be on the boundary and the other inside, drawing line segments in effect; or you must choose points outside of the boundary of the surface you want to set visible, and set limits for the x and y axis.
As follows:
import matplotlib.pyplot as plt
x1, y1 = [-1, 12], [1, 10]
x2, y2 = [-1, 10], [3, -1]
plt.xlim(0, 8), plt.ylim(-2, 8)
plt.plot(x1, y1, x2, y2, marker = 'o')
plt.show()
If any of these answers above don't work, and you're on an apache server, adding the following to your .htaccess file:
//most of the common formats, add any that apply
AddType video/mp4 .mp4
AddType audio/mp4 .m4a
AddType video/mp4 .m4v
AddType video/ogg .ogv
AddType video/ogg .ogg
AddType video/webm .webm
I had a similar problem and adding this solved all my playback issues.
I would use Application Context to get a System Service in the constructor. This eases testing & benefits from composition
public class MyActivity extends Activity {
private final NotificationManager notificationManager;
public MyActivity() {
this(MyApp.getContext().getSystemService(NOTIFICATION_SERVICE));
}
public MyActivity(NotificationManager notificationManager) {
this.notificationManager = notificationManager;
}
// onCreate etc
}
Test class would then use the overloaded constructor.
Android would use the default constructor.
You should look at the members of the thrown exception, particularly .Message
and .InnerException
.
I would also see whether or not the documentation for InvokeMethod tells you whether it throws some more specialized Exception class than Exception - such as the Win32Exception suggested by @Preet. Catching and just looking at the Exception base class may not be particularly useful.
You have a couple of questions here, so I'll address them separately:
My general rule is: don't. This is something which all but requires a second table (or third) with a foreign key. Sure, it may seem easier now, but what if the use case comes along where you need to actually query for those items individually? It also means that you have more options for lazy instantiation and you have a more consistent experience across multiple frameworks/languages. Further, you are less likely to have connection timeout issues (30,000 characters is a lot).
You mentioned that you were thinking about using ENUM. Are these values fixed? Do you know them ahead of time? If so this would be my structure:
Base table (what you have now):
| id primary_key sequence
| -- other columns here.
Items table:
| id primary_key sequence
| descript VARCHAR(30) UNIQUE
Map table:
| base_id bigint
| items_id bigint
Map table would have foreign keys so base_id maps to Base table, and items_id would map to the items table.
And if you'd like an easy way to retrieve this from a DB, then create a view which does the joins. You can even create insert and update rules so that you're practically only dealing with one table.
If you have to do something like this, why not just use a character delineated string? It will take less processing power than a CSV, XML, or JSON, and it will be shorter.
Personally, I would use TEXT
. It does not sound like you'd gain much by making this a BLOB
, and TEXT
, in my experience, is easier to read if you're using some form of IDE.
Trying to run a servlet in Eclipse (right-click + "Run on Server") I encountered the very same problem: "HTTP Status: 404 / Description: The origin server did not find a current representation for the target resource or is not willing to disclose that one exists." Adding an index.html did not help, neither changing various settings of the tomcat.
Finally, I found the problem in an unexpected place: In Eclipse, the Option "Build automatically" was not set. Thus the servlet was not compiled, and no File "myServlet.class" was deployed to the server (in my case in the path .wtpwebapps/projectXX/WEB-INF/classes/XXpackage/). Building the project manually and restarting the server solved the problem.
My environment: Eclipse Neon.3 Release 4.6.3, Tomcat-Version 8.5.14., OS Linux Mint 18.1.
in my .net core 3.1 applications I am getting two problem where inner cause was timeout exception. 1, one is i am getting aggregate exception and in it's inner exception was timeout exception 2, other case was Task canceled exception
My solution is
catch (Exception ex)
{
if (ex.InnerException is TimeoutException)
{
ex = ex.InnerException;
}
else if (ex is TaskCanceledException)
{
if ((ex as TaskCanceledException).CancellationToken == null || (ex as TaskCanceledException).CancellationToken.IsCancellationRequested == false)
{
ex = new TimeoutException("Timeout occurred");
}
}
Logger.Fatal(string.Format("Exception at calling {0} :{1}", url, ex.Message), ex);
}
Please check your app.json file in project. if there has not line appKey then you must add it
{
"expo": {
"sdkVersion": "27.0.0",
"appKey": "mydojo"
},
"name": "mydojo",
"displayName": "mydojo"
}
Accessing & Assigning the Session Variable using Javascript:
Assigning the ASP.NET Session Variable using Javascript:
<script type="text/javascript">
function SetUserName()
{
var userName = "Shekhar Shete";
'<%Session["UserName"] = "' + userName + '"; %>';
alert('<%=Session["UserName"] %>');
}
</script>
Accessing ASP.NET Session variable using Javascript:
<script type="text/javascript">
function GetUserName()
{
var username = '<%= Session["UserName"] %>';
alert(username );
}
</script>
Here is what made the error disappear for me:
Close eclipse, open up a terminal window and run:
$ mvn clean eclipse:clean eclipse:eclipse
Are you using Maven? If so,
To add it: Right-click on the project, Maven → Disable Maven Nature Right-click on the project, Configure → Convert to Maven Project.
And then clean
Edit 1:
If that doesn't resolve the issue try right-clicking on your project and select properties. Select Java Build Path → Library tab. Look for a JVM. If it's not there, click to add Library and add the default JVM. If VM is there, click edit and select the default JVM. Hopefully, that works.
Edit 2:
You can also try going into the folder where you have all your projects and delete the .metadata
for eclipse (be aware that you'll have to re-import all the projects afterwards! Also all the environment settings you've set would also have to be redone). After it was deleted just import the project again, and hopefully, it works.
The problem I run into is I have an existing IIS machine. I then deploy a static React app to it. When you use router, the URL that displays is actually virtual, not real. If you hit F5 it goes to IIS, not index.js, and your return will be 404 file not found. How I resolved it was simple. I have a public folder in my react app. In that public folder I created the same folder name as the virtual routing. In this folder, I have an index.html with the following code:
<script>
{
localStorage.setItem("redirect", "/ansible/");
location.href = "/";
}
</script>
Now what this does is for this session, I'm adding the "routing" path I want it to go. Then inside my App.js I do this (Note ... is other code but too much to put here for a demo):
import React, { Component } from "react";
import { Route, Link } from "react-router-dom";
import { BrowserRouter as Router } from "react-router-dom";
import { Redirect } from 'react-router';
import Ansible from "./Development/Ansible";
import Code from "./Development/Code";
import Wood from "./WoodWorking";
import "./App.css";
class App extends Component {
render() {
const redirect = localStorage.getItem("redirect");
if(redirect) {
localStorage.removeItem("redirect");
}
return (
<Router>
{redirect ?<Redirect to={redirect}/> : ""}
<div className="App">
...
<Link to="/">
<li>Home</li>
</Link>
<Link to="/dev">
<li>Development</li>
</Link>
<Link to="/wood">
<li>Wood Working</li>
</Link>
...
<Route
path="/"
exact
render={(props) => (
<Home {...props} />
)}
/>
<Route
path="/dev"
render={(props) => (
<Code {...props} />
)}
/>
<Route
path="/wood"
render={(props) => (
<Wood {...props} />
)}
/>
<Route
path="/ansible/"
exact
render={(props) => (
<Ansible {...props} checked={this.state.checked} />
)}
/>
...
</Router>
);
}
}
export default App;
Actual usage: chizl.com
You could also use CEILING
which rounds up to an integer or desired multiple of significance
ie
=CEILING(A1,10)
rounds up to a multiple of 10
12340.0001
will become 12350
Like you I also faced many problems implementing OCR in Android, but after much Googling I found the solution, and it surely is the best example of OCR.
Let me explain using step-by-step guidance.
First, download the source code from https://github.com/rmtheis/tess-two.
Import all three projects. After importing you will get an error.
To solve the error you have to create a res
folder in the tess-two project
First, just create res folder in tess-two by tess-two->RightClick->new Folder->Name it "res"
After doing this in all three project the error should be gone.
Now download the source code from https://github.com/rmtheis/android-ocr, here you will get best example.
Now you just need to import it into your workspace, but first you have to download android-ndk from this site:
http://developer.android.com/tools/sdk/ndk/index.html i have windows 7 - 32 bit PC so I have download http://dl.google.com/android/ndk/android-ndk-r9-windows-x86.zip this file
Now extract it suppose I have extract it into E:\Software\android-ndk-r9 so I will set this path on Environment Variable
Right Click on MyComputer->Property->Advance-System-Settings->Advance->Environment Variable-> find PATH on second below Box and set like path like below picture
done it
Now open cmd and go to on D:\Android Workspace\tess-two like below
If you have successfully set up environment variable of NDK then just type ndk-build just like above picture than enter you will not get any kind of error and all file will be compiled successfully:
Now download other source code also from https://github.com/rmtheis/tess-two , and extract and import it and give it name OCRTest, like in my PC which is in D:\Android Workspace\OCRTest
Import test-two in this and run OCRTest and run it; you will get the best example of OCR.
I think it would be better to actually bind your listBoxes to a datasource, since it looks like you are adding the same elements to each listbox. A simple example would be something like this:
private List<String> _weight = new List<string>() { "kilogram", "pound" };
private List<String> _height = new List<string>() { "foot", "inch", "meter" };
public Window1()
{
InitializeComponent();
}
private void Weight_Click(object sender, RoutedEventArgs e)
{
listBox1.ItemsSource = _weight;
listBox2.ItemsSource = _weight;
}
private void Height_Click(object sender, RoutedEventArgs e)
{
listBox1.ItemsSource = _height;
listBox2.ItemsSource = _height;
}
When entered as the reference of a Named range
, it refers to range on the sheet the named range is used on.
For example, create a named range MyName
refering to =SUM(!B1:!K1)
Place a formula on Sheet1
=MyName
. This will sum Sheet1!B1:K1
Now place the same formula (=MyName
) on Sheet2
. That formula will sum Sheet2!B1:K1
Note: (as pnuts commented) this and the regular SheetName!B1:K1
format are relative, so reference different cells as the =MyName
formula is entered into different cells.
If you can't add a "visited" property to the nodes, use a set (or map) and just add all visited nodes to the set unless they are already in the set. Use a unique key or the address of the objects as the "key".
This also gives you the information about the "root" node of the cyclic dependency which will come in handy when a user has to fix the problem.
Another solution is to try to find the next dependency to execute. For this, you must have some stack where you can remember where you are now and what you need to do next. Check if a dependency is already on this stack before you execute it. If it is, you've found a cycle.
While this might seem to have a complexity of O(N*M) you must remember that the stack has a very limited depth (so N is small) and that M becomes smaller with each dependency that you can check off as "executed" plus you can stop the search when you found a leaf (so you never have to check every node -> M will be small, too).
In MetaMake, I created the graph as a list of lists and then deleted every node as I executed them which naturally cut down the search volume. I never actually had to run an independent check, it all happened automatically during normal execution.
If you need a "test only" mode, just add a "dry-run" flag which disables the execution of the actual jobs.
If all else fails (or perhaps before then) you may want to check and see if NuGet is a package source. I installed VS2017, and it was NOT there by default. I thought it was kind of odd.
Writing Java servlets is easy if you use Java EE 7
@WebServlet("/hello-world")
public class HelloWorld extends HttpServlet {
@Override
public void doGet(HttpServletRequest request,
HttpServletResponse response) {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("Hello World");
out.flush();
}
}
Since servlet 3.0
The good news is the deployment descriptor is no longer required!
Read the tutorial for Java Servlets.
On Click event On webView works in onTouch like this:
imagewebViewNewsChart.setOnTouchListener(new View.OnTouchListener(){
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction()==MotionEvent.ACTION_MOVE){
return false;
}
if (event.getAction()==MotionEvent.ACTION_UP){
startActivity(new Intent(this,Example.class));
}
return false;
}
});
A sed
or awk
solution would probably be shorter, but here's one for Perl:
perl -F/,/ -ane 'print if $F[<INDEX>] eq "<VALUE>"`
where <INDEX>
is 0-based (0 for first column, 1 for 2nd column, etc.)
I ended up fixing our Ubuntu 18.04 / Apache 2.4.29 / PHP 7.2 install for Chrome 80 by installing mod_headers:
a2enmod headers
Adding the following directive to our Apache VirtualHost configurations:
Header edit Set-Cookie ^(.*)$ "$1; Secure; SameSite=None"
And restarting Apache:
service apache2 restart
In reviewing the docs (http://www.balkangreenfoundation.org/manual/en/mod/mod_headers.html) I noticed the "always" condition has certain situations where it does not work from the same pool of response headers. Thus not using "always" is what worked for me with PHP but the docs suggest that if you want to cover all your bases you could add the directive both with and without "always". I have not tested that.
unicode
is meant to handle text. Text is a sequence of code points which may be bigger than a single byte. Text can be encoded in a specific encoding to represent the text as raw bytes(e.g. utf-8
, latin-1
...).
Note that unicode
is not encoded! The internal representation used by python is an implementation detail, and you shouldn't care about it as long as it is able to represent the code points you want.
On the contrary str
in Python 2 is a plain sequence of bytes. It does not represent text!
You can think of unicode
as a general representation of some text, which can be encoded in many different ways into a sequence of binary data represented via str
.
Note: In Python 3, unicode
was renamed to str
and there is a new bytes
type for a plain sequence of bytes.
Some differences that you can see:
>>> len(u'à') # a single code point
1
>>> len('à') # by default utf-8 -> takes two bytes
2
>>> len(u'à'.encode('utf-8'))
2
>>> len(u'à'.encode('latin1')) # in latin1 it takes one byte
1
>>> print u'à'.encode('utf-8') # terminal encoding is utf-8
à
>>> print u'à'.encode('latin1') # it cannot understand the latin1 byte
?
Note that using str
you have a lower-level control on the single bytes of a specific encoding representation, while using unicode
you can only control at the code-point level. For example you can do:
>>> 'àèìòù'
'\xc3\xa0\xc3\xa8\xc3\xac\xc3\xb2\xc3\xb9'
>>> print 'àèìòù'.replace('\xa8', '')
à?ìòù
What before was valid UTF-8, isn't anymore. Using a unicode string you cannot operate in such a way that the resulting string isn't valid unicode text. You can remove a code point, replace a code point with a different code point etc. but you cannot mess with the internal representation.
If you don't want to use any object, you can still use setattr()
inside your current module:
import sys
current_module = module = sys.modules[__name__] # i.e the "file" where your code is written
setattr(current_module, 'variable_name', 15) # 15 is the value you assign to the var
print(variable_name) # >>> 15, created from a string
As short as the question:
SELECT DeptID, MAX(Salary) FROM EmpDetails GROUP BY DeptID
Simpal an easy In my case it solved by as below
Make sure your pakage name in mainifests file same as your gradle's applicationId.
I tried the following code that seemed to work:
if(open(my $FILE, "<File.txt")) {
while(<$FILE>){
print "$_";}
} else {
print "File could not be opened or did not exists\n";
}
? HTTP 1.0 (1994)
? HTTP 1.1 (1996- 2015)
HTTP 1.1 is an enhancement of HTTP 1.0. The following lists the four major improvements:
Efficient use of IP addresses, by allowing multiple domains to be served from a single IP address.
Faster response, by allowing a web browser to send multiple requests over a single persistent connection.
Probably because you're using unsafe code.
Are you doing something with pointers or unmanaged assemblies somewhere?
With BS 4, you can also use the sizing, and apply w-100 so that the button can occupy the complete width of the parent container.
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<p>_x000D_
Using btn-block_x000D_
</p>_x000D_
<div class="container-fluid">_x000D_
<div class="btn-group col" role="group" aria-label="Basic example">_x000D_
<button type="button" class="btn btn-outline-secondary">Left</button>_x000D_
<button type="button" class="btn btn-outline-secondary btn-block">Middle</button>_x000D_
<button type="button" class="btn btn-outline-secondary">Right</button>_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
<p>_x000D_
Using w-100_x000D_
</p>_x000D_
<div class="container-fluid">_x000D_
<div class="btn-group col" role="group" aria-label="Basic example">_x000D_
<button type="button" class="btn btn-outline-secondary">Left</button>_x000D_
<button type="button" class="btn btn-outline-secondary w-100">Middle</button>_x000D_
<button type="button" class="btn btn-outline-secondary">Right</button>_x000D_
</div>_x000D_
</div>
_x000D_
You can split and join the string, but why not use substrings? Then you only end up with one split instead of splitting the string into 5 parts and re-joining it. The end result is the same, but the substring is probably a bit faster.
string lcStart = "Some Very Large String Here";
int lnSpace = lcStart.IndexOf(' ');
if (lnSpace > -1)
{
string lcFirst = lcStart.Substring(0, lnSpace);
string lcRest = lcStart.Substring(lnSpace + 1);
}
For any method in a Spring CrudRepository you should be able to specify the @Query yourself. Something like this should work:
@Query( "select o from MyObject o where inventoryId in :ids" )
List<MyObject> findByInventoryIds(@Param("ids") List<Long> inventoryIdList);
Also you can do gem install username-projectname -s http://gems.github.com
Yes, Spring framework logging is very detailed, You did not mention in your post, if you are already using a logging framework or not. If you are using log4j then just add spring appenders to the log4j config (i.e to log4j.xml or log4j.properties), If you are using log4j xml config you can do some thing like this
<category name="org.springframework.beans">
<priority value="debug" />
</category>
or
<category name="org.springframework">
<priority value="debug" />
</category>
I would advise you to test this problem in isolation using JUnit test, You can do this by using spring testing module in conjunction with Junit. If you use spring test module it will do the bulk of the work for you it loads context file based on your context config and starts container so you can just focus on testing your business logic. I have a small example here
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:springContext.xml"})
@Transactional
public class SpringDAOTest
{
@Autowired
private SpringDAO dao;
@Autowired
private ApplicationContext appContext;
@Test
public void checkConfig()
{
AnySpringBean bean = appContext.getBean(AnySpringBean.class);
Assert.assertNotNull(bean);
}
}
I am not advising you to change the way you load logging but try this in your dev environment, Add this snippet to your web.xml file
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
UPDATE log4j config file
I tested this on my local tomcat and it generated a lot of logging on application start up. I also want to make a correction: use debug not info as @Rayan Stewart mentioned.
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
<param name="Threshold" value="debug" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%d{HH:mm:ss} %p [%t]:%c{3}.%M()%L - %m%n" />
</layout>
</appender>
<appender name="springAppender" class="org.apache.log4j.RollingFileAppender">
<param name="file" value="C:/tomcatLogs/webApp/spring-details.log" />
<param name="append" value="true" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%d{MM/dd/yyyy HH:mm:ss} [%t]:%c{5}.%M()%L %m%n" />
</layout>
</appender>
<category name="org.springframework">
<priority value="debug" />
</category>
<category name="org.springframework.beans">
<priority value="debug" />
</category>
<category name="org.springframework.security">
<priority value="debug" />
</category>
<category
name="org.springframework.beans.CachedIntrospectionResults">
<priority value="debug" />
</category>
<category name="org.springframework.jdbc.core">
<priority value="debug" />
</category>
<category name="org.springframework.transaction.support.TransactionSynchronizationManager">
<priority value="debug" />
</category>
<root>
<priority value="debug" />
<appender-ref ref="springAppender" />
<!-- <appender-ref ref="STDOUT"/> -->
</root>
</log4j:configuration>
What worked for me after following all your workarounds was to call the API:
<script async defer src="https://maps.googleapis.com/maps/api/js?key=you_API_KEY&callback=initMap&libraries=places"
type="text/javascript"></script>
before my : <div id="map"></div>
I am using .ASP NET (MVC)
HTML DOM querySelectorAll() method seems apt here.
W3School Link given here
Syntax (As given in W3School)
document.querySelectorAll(CSS selectors)
So the answer.
document.querySelectorAll("[name^=q1_]")
Edit:
Considering FLX's suggestion adding link to MDN here
Java is only pass-by-value. (or better - pass-reference-by-value)
So the passed argument and the argument within the method are two different handlers pointing to the same object (value).
Therefore if you change the state of the object, it is reflected to every other variable that's referencing it. But if you re-assign a new object (value) to the argument, then other variables pointing to this object (value) do not get re-assigned.
Assuming a and b are the dictionaries you want to merge:
c = {key: value for (key, value) in (a.items() + b.items())}
To convert your string to python dictionary you use the following:
import json
my_dict = json.loads(json_str)
Update: full code using strings:
# test cases for jsonStringA and jsonStringB according to your data input
jsonStringA = '{"error_1395946244342":"valueA","error_1395952003":"valueB"}'
jsonStringB = '{"error_%d":"Error Occured on machine %s in datacenter %s on the %s of process %s"}' % (timestamp_number, host_info, local_dc, step, c)
# now we have two json STRINGS
import json
dictA = json.loads(jsonStringA)
dictB = json.loads(jsonStringB)
merged_dict = {key: value for (key, value) in (dictA.items() + dictB.items())}
# string dump of the merged dict
jsonString_merged = json.dumps(merged_dict)
But I have to say that in general what you are trying to do is not the best practice. Please read a bit on python dictionaries.
Alternative solution:
jsonStringA = get_my_value_as_string_from_somewhere()
errors_dict = json.loads(jsonStringA)
new_error_str = "Error Ocurred in datacenter %s blah for step %s blah" % (datacenter, step)
new_error_key = "error_%d" % (timestamp_number)
errors_dict[new_error_key] = new_error_str
# and if I want to export it somewhere I use the following
write_my_dict_to_a_file_as_string(json.dumps(errors_dict))
And actually you can avoid all these if you just use an array to hold all your errors.
Since explode()
returns an array, you can add square brackets directly to the end of that function, if you happen to know the position of the last array item.
$email = '[email protected]';
$provider = explode('@', $email)[1];
echo $provider; // example.com
Or another way is list()
:
$email = '[email protected]';
list($prefix, $provider) = explode('@', $email);
echo $provider; // example.com
If you don't know the position:
$path = 'one/two/three/four';
$dirs = explode('/', $path);
$last_dir = $dirs[count($dirs) - 1];
echo $last_dir; // four
Here is a version of the answer in
// MARK: - Hiding Back Button
extension UINavigationItem {
/// A Boolean value that determines whether the back button is hidden.
///
/// When set to `true`, the back button is hidden when this navigation item
/// is the top item. This is true regardless of the value in the
/// `leftItemsSupplementBackButton` property. When set to `false`, the back button
/// is shown if it is still present. (It can be replaced by values in either
/// the `leftBarButtonItem` or `leftBarButtonItems` properties.) The default value is `false`.
@IBInspectable var hideBackButton: Bool {
get { hidesBackButton }
set { hidesBackButton = newValue }
}
}
Every navigation item of a view controller will have this new property in the top section of attributes inspector
Try setting the checkbox's opacity to 0. If you want the checkbox to be out of flow try position:absolute
and offset the checkbox by a large number.
HTML
<label class="checkbox"><input type="checkbox" value="valueofcheckbox" checked="checked" style="opacity:0; position:absolute; left:9999px;">Option Text</label>
Your query ($myQuery) is failing and therefore not producing a query resource, but instead producing FALSE.
To reveal what your dynamically generated query looks like and reveal the errors, try this:
$result2 = mysql_query($myQuery) or die($myQuery."<br/><br/>".mysql_error());
The error message will guide you to the solution, which from your comment below is related to using ORDER BY on a field that doesn't exist in the table you're SELECTing from.
try using concatenation of string
Statistics(string date)
{
this->date += date;
}
acually this was a part of a class..
You could do this by styling an "x"
text-align: center;
font-size: 120px;
line-height: 100px;
color: white;
font-family: monospace;
You don't tend to execute the make file itself, rather you execute make
, giving it the make file as an argument:
make -f pax.mk
If your make file is actually one of the standard names (like makefile
or Makefile
), you don't even need to specify it. It'll be picked up by default (if you have more than one of these standard names in your build directory, you better look up the make
man page to see which takes precedence).
$objPHPExcel->getActiveSheet()->getStyle('B3:B7')->getFill()
->setFillType(PHPExcel_Style_Fill::FILL_SOLID)
->getStartColor()->setARGB('FFFF0000');
It's in the documentation, located here: https://github.com/PHPOffice/PHPExcel/wiki/User-Documentation-Overview-and-Quickstart-Guide
I don't know if this is good practice or not, but casting a Context object to an Activity object compiles fine.
Try this: ((Activity) mContext).startActivity(...)
Set the GET query parameters as managed properties in faces-config.xml
so that you don't need to gather them manually:
<managed-bean>
<managed-bean-name>forward</managed-bean-name>
<managed-bean-class>com.example.ForwardBean</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
<managed-property>
<property-name>action</property-name>
<value>#{param.action}</value>
</managed-property>
<managed-property>
<property-name>actionParam</property-name>
<value>#{param.actionParam}</value>
</managed-property>
</managed-bean>
This way the request forward.jsf?action=outcome1&actionParam=123
will let JSF set the action
and actionParam
parameters as action
and actionParam
properties of the ForwardBean
.
Create a small view forward.xhtml
(so small that it fits in default response buffer (often 2KB) so that it can be resetted by the navigationhandler, otherwise you've to increase the response buffer in the servletcontainer's configuration), which invokes a bean method on beforePhase
of the f:view
:
<!DOCTYPE html>
<html xmlns:f="http://java.sun.com/jsf/core">
<f:view beforePhase="#{forward.navigate}" />
</html>
The ForwardBean
can look like this:
public class ForwardBean {
private String action;
private String actionParam;
public void navigate(PhaseEvent event) {
FacesContext facesContext = FacesContext.getCurrentInstance();
String outcome = action; // Do your thing?
facesContext.getApplication().getNavigationHandler().handleNavigation(facesContext, null, outcome);
}
// Add/generate the usual boilerplate.
}
The navigation-rule
speaks for itself (note the <redirect />
entries which would do ExternalContext#redirect()
instead of ExternalContext#dispatch()
under the covers):
<navigation-rule>
<navigation-case>
<from-outcome>outcome1</from-outcome>
<to-view-id>/outcome1.xhtml</to-view-id>
<redirect />
</navigation-case>
<navigation-case>
<from-outcome>outcome2</from-outcome>
<to-view-id>/outcome2.xhtml</to-view-id>
<redirect />
</navigation-case>
</navigation-rule>
An alternative is to use forward.xhtml
as
<!DOCTYPE html>
<html>#{forward}</html>
and update the navigate()
method to be invoked on @PostConstruct
(which will be invoked after bean's construction and all managed property setting):
@PostConstruct
public void navigate() {
// ...
}
It has the same effect, however the view side is not really self-documenting. All it basically does is printing ForwardBean#toString()
(and hereby implicitly constructing the bean if not present yet).
Note for the JSF2 users, there is a cleaner way of passing parameters with <f:viewParam>
and more robust way of handling the redirect/navigation by <f:event type="preRenderView">
. See also among others:
To answer your question, on Windows, the my.cnf
file may be called my.ini
. MySQL looks for it in the following locations (in this order):
%PROGRAMDATA%\MySQL\MySQL Server 5.7\my.ini
, %PROGRAMDATA%\MySQL\MySQL Server 5.7\my.cnf
%WINDIR%\my.ini
, %WINDIR%\my.cnf
C:\my.ini
, C:\my.cnf
\my.ini
, INSTALLDIR\my.cnf
See also http://dev.mysql.com/doc/refman/5.7/en/option-files.html
Then you can edit the config file and add an entry like this:
[mysqld]
skip-grant-tables
Then restart the MySQL Service and you can log in and do what you need to do. Of course you want to disable that entry in the config file as soon as possible!
See also http://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html
"error: unmappable character for encoding UTF-8" means, java has found a character which is not representing in UTF-8. Hence open the file in an editor and set the character encoding to UTF-8. You should be able to find a character which is not represented in UTF-8.Take off this character and recompile.
On the low level, these events can be caught using rtnetlink sockets, without any polling. Side note: if you use rtnetlink, you have to work together with udev, or your program may get confused when udev renames a new network interface.
The problem with doing network configurations with shell scripts is that shell scripts are terrible for event handling (such as a network cable being plugged in and out). If you need something more powerful, take a look at my NCD programming language, a programming language designed for network configurations.
For example, a simple NCD script that will print "cable in" and "cable out" to stdout (assuming the interface is already up):
process foo {
# Wait for device to appear and be configured by udev.
net.backend.waitdevice("eth0");
# Wait for cable to be plugged in.
net.backend.waitlink("eth0");
# Print "cable in" when we reach this point, and "cable out"
# when we regress.
println("cable in"); # or pop_bubble("Network cable in.");
rprintln("cable out"); # or rpop_bubble("Network cable out!");
# just joking, there's no pop_bubble() in NCD yet :)
}
(internally, net.backend.waitlink()
uses rtnetlink, and net.backend.waitdevice()
uses udev)
The idea of NCD is that you use it exclusively to configure the network, so normally, configuration commands would come in between, such as:
process foo {
# Wait for device to appear and be configured by udev.
net.backend.waitdevice("eth0");
# Set device up.
net.up("eth0");
# Wait for cable to be plugged in.
net.backend.waitlink("eth0");
# Add IP address to device.
net.ipv4.addr("eth0", "192.168.1.61", "24");
}
The important part to note is that execution is allowed to regress; in the second example, for instance, if the cable is pulled out, the IP address will automatically be removed.
This is cleaner and will put in a csv.
Import-Module ActiveDirectory
$Groups = (Get-AdGroup -filter * | Where {$_.name -like "**"} | select name -expandproperty name)
$Table = @()
$Record = [ordered]@{
"Group Name" = ""
"Name" = ""
"Username" = ""
}
Foreach ($Group in $Groups)
{
$Arrayofmembers = Get-ADGroupMember -identity $Group | select name,samaccountname
foreach ($Member in $Arrayofmembers)
{
$Record."Group Name" = $Group
$Record."Name" = $Member.name
$Record."UserName" = $Member.samaccountname
$objRecord = New-Object PSObject -property $Record
$Table += $objrecord
}
}
$Table | export-csv "C:\temp\SecurityGroups.csv" -NoTypeInformation
You need to add width: 0
to make columns equal if contents of the items make it grow bigger.
.item {
flex: 1 1 0;
width: 0;
}
Go to the Users & Groups pane of the System Preferences -> Select the User -> Click the lock to make changes (bottom left corner) -> right click the current user select Advanced options... -> Select the Login Shell: /bin/zsh and OK
There is a pitfall I have experienced with "Error 1215: Cannot add foreign key constraint" when using Laravel 4, especially with JeffreyWay's Laravel 4 Generators.
In Laravel 4, you can use JeffreyWay's Generators to generate migration files to create tables one-by-one, which means, each migration file generates one table. You have to be aware of the fact that each migration file is generated with a timestamp in the filename, which gives the files an order. The order of generation is also the order of migration operation when you fire the Artisan CLI command "php artisan migrate". So, if a file asks for a foreign key constraint referring to a key which will be, but not yet, generated in a latter file, the Error 1215 is fired. In such case, what you have to do is adjust the order of migration files generation. Generate new files in proper order, copy-in the content, then delete the disordered old files.
CaseInsensitiveString and String are different objects. You can't do:
CaseInsensitiveString cis = "Polish";
because "Polish" is a String, not a CaseInsensitiveString. If String extended CaseInsensitiveString String then you'd be OK, but obviously it doesn't.
And don't worry about the construction here, you won't be making unecessary objects. If you look at the code of the constructor, all it's doing is storing a reference to the string you passed in. Nothing extra is being created.
In the String s = new String("foobar") case it's doing something different. You are first creating the literal string "foobar", then creating a copy of it by constructing a new string out of it. There's no need to create that copy.
Yes, you can use Type.InvokeMember()
:
using System.Reflection;
MyObject obj = new MyObject();
obj.GetType().InvokeMember("Name",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.SetProperty,
Type.DefaultBinder, obj, "Value");
This will throw an exception if obj
doesn't have a property called Name
, or it can't be set.
Another approach is to get the metadata for the property, and then set it. This will allow you to check for the existence of the property, and verify that it can be set:
using System.Reflection;
MyObject obj = new MyObject();
PropertyInfo prop = obj.GetType().GetProperty("Name", BindingFlags.Public | BindingFlags.Instance);
if(null != prop && prop.CanWrite)
{
prop.SetValue(obj, "Value", null);
}
Building of off an earlier example, I think there is a cleaner way of doing this. Create an index.html
file in your project and using Stephen's code from above, just convert it into an HTML doc.
<!DOCTYPE html>
<html>
<base target="_top">
<script>
function onSuccess(url) {
var a = document.createElement("a");
a.href = url;
a.target = "_blank";
window.close = function () {
window.setTimeout(function() {
google.script.host.close();
}, 9);
};
if (document.createEvent) {
var event = document.createEvent("MouseEvents");
if (navigator.userAgent.toLowerCase().indexOf("firefox") > -1) {
window.document.body.append(a);
}
event.initEvent("click", true, true);
a.dispatchEvent(event);
} else {
a.click();
}
close();
}
function onFailure(url) {
var div = document.getElementById('failureContent');
var link = '<a href="' + url + '" target="_blank">Process</a>';
div.innerHtml = "Failure to open automatically: " + link;
}
google.script.run.withSuccessHandler(onSuccess).withFailureHandler(onFailure).getUrl();
</script>
<body>
<div id="failureContent"></div>
</body>
<script>
google.script.host.setHeight(40);
google.script.host.setWidth(410);
</script>
</html>
Then, in your Code.gs
script, you can have something like the following,
function getUrl() {
return 'http://whatever.com';
}
function openUrl() {
var html = HtmlService.createHtmlOutputFromFile("index");
html.setWidth(90).setHeight(1);
var ui = SpreadsheetApp.getUi().showModalDialog(html, "Opening ..." );
}
Yes, it is possible. You have to do something like this:
if(isset($_POST['submit']))
{
$type_id = ($_POST['type_id'] == '' ? "null" : "'".$_POST['type_id']."'");
$sql = "INSERT INTO `table` (`type_id`) VALUES (".$type_id.")";
}
It checks if the $_POST['type_id']
variable has an empty value.
If yes, it assign NULL
as a string to it.
If not, it assign the value with ' to it for the SQL
notation
why not just use a button instead of submit. clicking the button will let you construct a proper url for your browser to redirect to.
$("#button").click(function() {
var url = 'site.com/process.php?';
$('form input').each(function() {
url += 'key=' + $(this).val() + "&";
});
// handle removal of last &.
window.location.replace(url);
});
As well as Amateras you could try Web Tools Project or Aptana. Although they will both give you way more than just a jsp editor.
Edit 2010/10/26 (comment from Simon Gibbs):
The Web Tools Project JSP editor is in the "Web Page Editor (Optional)" project.
Edit 2016/08/16 (extended comment from Dan Carter):
From Kepler (Eclipse 4.3.x) on, this is called "JSF Tools - Web Page Editor".
try it----------
function myFun(){_x000D_
var inputVal=document.getElementById("inputId").value;_x000D_
if(inputVal){_x000D_
document.getElementById("result").innerHTML="<span style='color:green'>The value is "+inputVal+'</span>';_x000D_
}_x000D_
else{_x000D_
document.getElementById("result").innerHTML="<span style='color:red'>Something error happen! the input May be empty.</span>";_x000D_
}_x000D_
}
_x000D_
<input type="text" id="inputId">_x000D_
<input type="button" onclick="myFun()" value="View Result">_x000D_
<h1 id="result"></h1>
_x000D_
$( ".selector" ).datepicker( "option", "dateFormat", 'yy-mm-dd' );
See: http://jqueryui.com/demos/datepicker/ and http://docs.jquery.com/UI/Datepicker/formatDate#utility-formatDate
myList = [i.split('\t')[0] for i in myList]
Do you mean elif
?
As said by JW, you can't find the current focused element, at least in a browser-independent way. But if your app is IE only (some are...), you can find it the following way :
document.activeElement
EDIT: It looks like IE did not have everything wrong after all, this is part of HTML5 draft and seems to be supported by the latest version of Chrome, Safari and Firefox at least.
// This is the recursive solution in Java // Called as following from main product(a,1,0);
public static double product(double[] a, double fwdprod, int index){
double revprod = 1;
if (index < a.length){
revprod = product2(a, fwdprod*a[index], index+1);
double cur = a[index];
a[index] = fwdprod * revprod;
revprod *= cur;
}
return revprod;
}
The simplest way of doing this would be to rename the root app folder from com.example.MyApp
to com.newcompanyname.MyNewAppName
and then replace all occurrences of the old path to the new path in whatever IDE you're using.
If you want to duplicate the table with all its constraints & keys follows this below steps:
Then for copying the data run this below script:
SET IDENTITY_INSERT DuplicateTable ON
INSERT Into DuplicateTable ([Column1], [Column2], [Column3], [Column4],... )
SELECT [Column1], [Column2], [Column3], [Column4],... FROM MainTable
SET IDENTITY_INSERT DuplicateTable OFF
jQuery 'fixes up' events to account for browser differences. When it does so, you can always access the 'native' event with event.originalEvent
(see the Special Properties subheading on this page).
OCR which stands for Optical Character Recognition is a computer vision technique used to identify the different types of handwritten digits that are used in common mathematics. To perform OCR in OpenCV we will use the KNN algorithm which detects the nearest k neighbors of a particular data point and then classifies that data point based on the class type detected for n neighbors.
Data Used
This data contains 5000 handwritten digits where there are 500 digits for every type of digit. Each digit is of 20×20 pixel dimensions. We will split the data such that 250 digits are for training and 250 digits are for testing for every class.
Below is the implementation.
import numpy as np import cv2 # Read the image image = cv2.imread( 'digits.png' ) # gray scale conversion gray_img = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) # We will divide the image # into 5000 small dimensions # of size 20x20 divisions = list (np.hsplit(i, 100 ) for i in np.vsplit(gray_img, 50 )) # Convert into Numpy array # of size (50,100,20,20) NP_array = np.array(divisions) # Preparing train_data # and test_data. # Size will be (2500,20x20) train_data = NP_array[:,: 50 ].reshape( - 1 , 400 ).astype(np.float32) # Size will be (2500,20x20) test_data = NP_array[:, 50 : 100 ].reshape( - 1 , 400 ).astype(np.float32) # Create 10 different labels # for each type of digit k = np.arange( 10 ) train_labels = np.repeat(k, 250 )[:,np.newaxis] test_labels = np.repeat(k, 250 )[:,np.newaxis] # Initiate kNN classifier knn = cv2.ml.KNearest_create() # perform training of data knn.train(train_data, cv2.ml.ROW_SAMPLE, train_labels) # obtain the output from the # classifier by specifying the # number of neighbors. ret, output ,neighbours, distance = knn.findNearest(test_data, k = 3 ) # Check the performance and # accuracy of the classifier. # Compare the output with test_labels # to find out how many are wrong. matched = output = = test_labels correct_OP = np.count_nonzero(matched) #Calculate the accuracy. accuracy = (correct_OP * 100.0 ) / (output.size) # Display accuracy. print (accuracy) |
Output
91.64
Well, I decided to workout myself on my question to solve the above problem. What I wanted is to implement a simple OCR using KNearest or SVM features in OpenCV. And below is what I did and how. (it is just for learning how to use KNearest for simple OCR purposes).
1) My first question was about letter_recognition.data
file that comes with OpenCV samples. I wanted to know what is inside that file.
It contains a letter, along with 16 features of that letter.
And this SOF
helped me to find it. These 16 features are explained in the paper Letter Recognition Using Holland-Style Adaptive Classifiers
.
(Although I didn't understand some of the features at the end)
2) Since I knew, without understanding all those features, it is difficult to do that method. I tried some other papers, but all were a little difficult for a beginner.
So I just decided to take all the pixel values as my features. (I was not worried about accuracy or performance, I just wanted it to work, at least with the least accuracy)
I took the below image for my training data:
(I know the amount of training data is less. But, since all letters are of the same font and size, I decided to try on this).
To prepare the data for training, I made a small code in OpenCV. It does the following things:
key press manually
. This time we press the digit key ourselves corresponding to the letter in the box..txt
files.At the end of the manual classification of digits, all the digits in the training data (train.png
) are labeled manually by ourselves, image will look like below:
Below is the code I used for the above purpose (of course, not so clean):
import sys
import numpy as np
import cv2
im = cv2.imread('pitrain.png')
im3 = im.copy()
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray,(5,5),0)
thresh = cv2.adaptiveThreshold(blur,255,1,1,11,2)
################# Now finding Contours ###################
contours,hierarchy = cv2.findContours(thresh,cv2.RETR_LIST,cv2.CHAIN_APPROX_SIMPLE)
samples = np.empty((0,100))
responses = []
keys = [i for i in range(48,58)]
for cnt in contours:
if cv2.contourArea(cnt)>50:
[x,y,w,h] = cv2.boundingRect(cnt)
if h>28:
cv2.rectangle(im,(x,y),(x+w,y+h),(0,0,255),2)
roi = thresh[y:y+h,x:x+w]
roismall = cv2.resize(roi,(10,10))
cv2.imshow('norm',im)
key = cv2.waitKey(0)
if key == 27: # (escape to quit)
sys.exit()
elif key in keys:
responses.append(int(chr(key)))
sample = roismall.reshape((1,100))
samples = np.append(samples,sample,0)
responses = np.array(responses,np.float32)
responses = responses.reshape((responses.size,1))
print "training complete"
np.savetxt('generalsamples.data',samples)
np.savetxt('generalresponses.data',responses)
Now we enter in to training and testing part.
For the testing part, I used the below image, which has the same type of letters I used for the training phase.
For training we do as follows:
.txt
files we already saved earlierFor testing purposes, we do as follows:
I included last two steps (training and testing) in single code below:
import cv2
import numpy as np
####### training part ###############
samples = np.loadtxt('generalsamples.data',np.float32)
responses = np.loadtxt('generalresponses.data',np.float32)
responses = responses.reshape((responses.size,1))
model = cv2.KNearest()
model.train(samples,responses)
############################# testing part #########################
im = cv2.imread('pi.png')
out = np.zeros(im.shape,np.uint8)
gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
thresh = cv2.adaptiveThreshold(gray,255,1,1,11,2)
contours,hierarchy = cv2.findContours(thresh,cv2.RETR_LIST,cv2.CHAIN_APPROX_SIMPLE)
for cnt in contours:
if cv2.contourArea(cnt)>50:
[x,y,w,h] = cv2.boundingRect(cnt)
if h>28:
cv2.rectangle(im,(x,y),(x+w,y+h),(0,255,0),2)
roi = thresh[y:y+h,x:x+w]
roismall = cv2.resize(roi,(10,10))
roismall = roismall.reshape((1,100))
roismall = np.float32(roismall)
retval, results, neigh_resp, dists = model.find_nearest(roismall, k = 1)
string = str(int((results[0][0])))
cv2.putText(out,string,(x,y+h),0,1,(0,255,0))
cv2.imshow('im',im)
cv2.imshow('out',out)
cv2.waitKey(0)
And it worked, below is the result I got:
Here it worked with 100% accuracy. I assume this is because all the digits are of the same kind and the same size.
But anyway, this is a good start to go for beginners (I hope so).
Create a new style
<style name="my_dialog_theme" parent="ThemeOverlay.AppCompat.Dialog">
<item name="colorAccent">@color/colorAccent</item> <!--header background-->
<item name="android:windowBackground">@color/colorPrimary</item> <!--calendar background-->
<item name="android:colorControlActivated">@color/colorAccent</item> <!--selected day-->
<item name="android:textColorPrimary">@color/colorPrimaryText</item> <!--days of the month-->
<item name="android:textColorSecondary">@color/colorAccent</item> <!--days of the week-->
</style>
Then initialize the dialog
Calendar mCalendar = new GregorianCalendar();
mCalendar.setTime(new Date());
new DatePickerDialog(mContext, R.style.my_dialog_theme, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
//do something with the date
}
}, mCalendar.get(Calendar.YEAR), mCalendar.get(Calendar.MONTH), mCalendar.get(Calendar.DAY_OF_MONTH)).show();
Result:
This related question's answer provided the solution for me... it was just a dumb mistake:
Remember to commit first!
https://stackoverflow.com/a/7572252
If you have not yet committed to your local repo, there is nothing to push, but the Git error message you get back doesn't help you too much.
How about
sub foo()
dim r As Range, rows As Long, i As Long
Set r = ActiveSheet.Range("A1:Z50")
rows = r.rows.Count
For i = rows To 1 Step (-1)
If WorksheetFunction.CountA(r.rows(i)) = 0 Then r.rows(i).Delete
Next
End Sub
Try this
Option Explicit
Sub Sample()
Dim i As Long
Dim DelRange As Range
On Error GoTo Whoa
Application.ScreenUpdating = False
For i = 1 To 50
If Application.WorksheetFunction.CountA(Range("A" & i & ":" & "Z" & i)) = 0 Then
If DelRange Is Nothing Then
Set DelRange = Range("A" & i & ":" & "Z" & i)
Else
Set DelRange = Union(DelRange, Range("A" & i & ":" & "Z" & i))
End If
End If
Next i
If Not DelRange Is Nothing Then DelRange.Delete shift:=xlUp
LetsContinue:
Application.ScreenUpdating = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume LetsContinue
End Sub
IF you want to delete the entire row then use this code
Option Explicit
Sub Sample()
Dim i As Long
Dim DelRange As Range
On Error GoTo Whoa
Application.ScreenUpdating = False
For i = 1 To 50
If Application.WorksheetFunction.CountA(Range("A" & i & ":" & "Z" & i)) = 0 Then
If DelRange Is Nothing Then
Set DelRange = Rows(i)
Else
Set DelRange = Union(DelRange, Rows(i))
End If
End If
Next i
If Not DelRange Is Nothing Then DelRange.Delete shift:=xlUp
LetsContinue:
Application.ScreenUpdating = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume LetsContinue
End Sub
The simple way to avoid this is not to use the worksheet method ShowAllData
Autofilter has the same ShowAllData method which doesn't throw an error when the filter is enabled but no filter is set
If ActiveSheet.AutoFilterMode Then ActiveSheet.AutoFilter.ShowAllData
I am new to retrofit and I am enjoying it. So here is a simple way to understand it for those that might want to query with more than one query: The ? and & are automatically added for you.
Interface:
public interface IService {
String BASE_URL = "https://api.test.com/";
String API_KEY = "SFSDF24242353434";
@GET("Search") //i.e https://api.test.com/Search?
Call<Products> getProducts(@Query("one") String one, @Query("two") String two,
@Query("key") String key)
}
It will be called this way. Considering you did the rest of the code already.
Call<Results> call = service.productList("Whatever", "here", IService.API_KEY);
For example, when a query is returned, it will look like this.
//-> https://api.test.com/Search?one=Whatever&two=here&key=SFSDF24242353434
Link to full project: Please star etc: https://github.com/Cosmos-it/ILoveZappos
If you found this useful, don't forget to star it please. :)
An issue with Gulp 4.
For solving this problem try to change your current code:
gulp.task('simpleTaskName', function() {
// code...
});
for example into this:
gulp.task('simpleTaskName', async function() {
// code...
});
or into this:
gulp.task('simpleTaskName', done => {
// code...
done();
});
If you want to use double quotes in strings but not single quotes, you can just use single quotes as the delimiter instead:
r'what"ever'
If you need both kinds of quotes in your string, use a triple-quoted string:
r"""what"ev'er"""
If you want to include both kinds of triple-quoted strings in your string (an extremely unlikely case), you can't do it, and you'll have to use non-raw strings with escapes.
Something like
select *
from foo
where regexp_like( col1, '[^[:alpha:]]' ) ;
should work
SQL> create table foo( col1 varchar2(100) );
Table created.
SQL> insert into foo values( 'abc' );
1 row created.
SQL> insert into foo values( 'abc123' );
1 row created.
SQL> insert into foo values( 'def' );
1 row created.
SQL> select *
2 from foo
3 where regexp_like( col1, '[^[:alpha:]]' ) ;
COL1
--------------------------------------------------------------------------------
abc123
You can use the following script. It worked for me
The modal itself consists of a main modal container, a header, a body, and a footer. The footer contains the actions, which in this case is the OK button, the header holds the title and the close button, and the body contains the modal content.
$(function () {
modalPosition();
$(window).resize(function () {
modalPosition();
});
$('.openModal').click(function (e) {
$('.modal, .modal-backdrop').fadeIn('fast');
e.preventDefault();
});
$('.close-modal').click(function (e) {
$('.modal, .modal-backdrop').fadeOut('fast');
});
});
function modalPosition() {
var width = $('.modal').width();
var pageWidth = $(window).width();
var x = (pageWidth / 2) - (width / 2);
$('.modal').css({ left: x + "px" });
}
if you use one line folder or file
chmod 755 $(find /yourfolder -type d)
chmod 644 $(find /yourfolder -type f)
Because it's an object, the way to assign value to its properties is using :
.
Change the =
to :
to fix the error.
var options = {
host: 'localhost',
port: 8080,
path: '/',
method: 'POST'
}
Console.Write will not work in ASP.NET as it is called using the browser. Use Response.Write instead.
See Stack Overflow question Where does Console.WriteLine go in ASP.NET?.
If you want to write something to Output window during debugging, you can use
System.Diagnostics.Debug.WriteLine("SomeText");
but this will work only during debug.
See Stack Overflow question Debug.WriteLine not working.
Pretty easy to overlook like I did, but don't forget to use UITapGestureRecognizer
rather than UIGestureRecognizer
.
Linux kernel 5.0 source comments
I knew that x86 specifics are under arch/x86
, and that syscall stuff goes under arch/x86/entry
. So a quick git grep rdi
in that directory leads me to arch/x86/entry/entry_64.S:
/*
* 64-bit SYSCALL instruction entry. Up to 6 arguments in registers.
*
* This is the only entry point used for 64-bit system calls. The
* hardware interface is reasonably well designed and the register to
* argument mapping Linux uses fits well with the registers that are
* available when SYSCALL is used.
*
* SYSCALL instructions can be found inlined in libc implementations as
* well as some other programs and libraries. There are also a handful
* of SYSCALL instructions in the vDSO used, for example, as a
* clock_gettimeofday fallback.
*
* 64-bit SYSCALL saves rip to rcx, clears rflags.RF, then saves rflags to r11,
* then loads new ss, cs, and rip from previously programmed MSRs.
* rflags gets masked by a value from another MSR (so CLD and CLAC
* are not needed). SYSCALL does not save anything on the stack
* and does not change rsp.
*
* Registers on entry:
* rax system call number
* rcx return address
* r11 saved rflags (note: r11 is callee-clobbered register in C ABI)
* rdi arg0
* rsi arg1
* rdx arg2
* r10 arg3 (needs to be moved to rcx to conform to C ABI)
* r8 arg4
* r9 arg5
* (note: r12-r15, rbp, rbx are callee-preserved in C ABI)
*
* Only called from user space.
*
* When user can change pt_regs->foo always force IRET. That is because
* it deals with uncanonical addresses better. SYSRET has trouble
* with them due to bugs in both AMD and Intel CPUs.
*/
and for 32-bit at arch/x86/entry/entry_32.S:
/*
* 32-bit SYSENTER entry.
*
* 32-bit system calls through the vDSO's __kernel_vsyscall enter here
* if X86_FEATURE_SEP is available. This is the preferred system call
* entry on 32-bit systems.
*
* The SYSENTER instruction, in principle, should *only* occur in the
* vDSO. In practice, a small number of Android devices were shipped
* with a copy of Bionic that inlined a SYSENTER instruction. This
* never happened in any of Google's Bionic versions -- it only happened
* in a narrow range of Intel-provided versions.
*
* SYSENTER loads SS, ESP, CS, and EIP from previously programmed MSRs.
* IF and VM in RFLAGS are cleared (IOW: interrupts are off).
* SYSENTER does not save anything on the stack,
* and does not save old EIP (!!!), ESP, or EFLAGS.
*
* To avoid losing track of EFLAGS.VM (and thus potentially corrupting
* user and/or vm86 state), we explicitly disable the SYSENTER
* instruction in vm86 mode by reprogramming the MSRs.
*
* Arguments:
* eax system call number
* ebx arg1
* ecx arg2
* edx arg3
* esi arg4
* edi arg5
* ebp user stack
* 0(%ebp) arg6
*/
glibc 2.29 Linux x86_64 system call implementation
Now let's cheat by looking at a major libc implementations and see what they are doing.
What could be better than looking into glibc that I'm using right now as I write this answer? :-)
glibc 2.29 defines x86_64 syscalls at sysdeps/unix/sysv/linux/x86_64/sysdep.h
and that contains some interesting code, e.g.:
/* The Linux/x86-64 kernel expects the system call parameters in
registers according to the following table:
syscall number rax
arg 1 rdi
arg 2 rsi
arg 3 rdx
arg 4 r10
arg 5 r8
arg 6 r9
The Linux kernel uses and destroys internally these registers:
return address from
syscall rcx
eflags from syscall r11
Normal function call, including calls to the system call stub
functions in the libc, get the first six parameters passed in
registers and the seventh parameter and later on the stack. The
register use is as follows:
system call number in the DO_CALL macro
arg 1 rdi
arg 2 rsi
arg 3 rdx
arg 4 rcx
arg 5 r8
arg 6 r9
We have to take care that the stack is aligned to 16 bytes. When
called the stack is not aligned since the return address has just
been pushed.
Syscalls of more than 6 arguments are not supported. */
and:
/* Registers clobbered by syscall. */
# define REGISTERS_CLOBBERED_BY_SYSCALL "cc", "r11", "cx"
#undef internal_syscall6
#define internal_syscall6(number, err, arg1, arg2, arg3, arg4, arg5, arg6) \
({ \
unsigned long int resultvar; \
TYPEFY (arg6, __arg6) = ARGIFY (arg6); \
TYPEFY (arg5, __arg5) = ARGIFY (arg5); \
TYPEFY (arg4, __arg4) = ARGIFY (arg4); \
TYPEFY (arg3, __arg3) = ARGIFY (arg3); \
TYPEFY (arg2, __arg2) = ARGIFY (arg2); \
TYPEFY (arg1, __arg1) = ARGIFY (arg1); \
register TYPEFY (arg6, _a6) asm ("r9") = __arg6; \
register TYPEFY (arg5, _a5) asm ("r8") = __arg5; \
register TYPEFY (arg4, _a4) asm ("r10") = __arg4; \
register TYPEFY (arg3, _a3) asm ("rdx") = __arg3; \
register TYPEFY (arg2, _a2) asm ("rsi") = __arg2; \
register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \
asm volatile ( \
"syscall\n\t" \
: "=a" (resultvar) \
: "0" (number), "r" (_a1), "r" (_a2), "r" (_a3), "r" (_a4), \
"r" (_a5), "r" (_a6) \
: "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \
(long int) resultvar; \
})
which I feel are pretty self explanatory. Note how this seems to have been designed to exactly match the calling convention of regular System V AMD64 ABI functions: https://en.wikipedia.org/wiki/X86_calling_conventions#List_of_x86_calling_conventions
Quick reminder of the clobbers:
cc
means flag registers. But Peter Cordes comments that this is unnecessary here.memory
means that a pointer may be passed in assembly and used to access memoryFor an explicit minimal runnable example from scratch see this answer: How to invoke a system call via syscall or sysenter in inline assembly?
Make some syscalls in assembly manually
Not very scientific, but fun:
x86_64.S
.text
.global _start
_start:
asm_main_after_prologue:
/* write */
mov $1, %rax /* syscall number */
mov $1, %rdi /* stdout */
mov $msg, %rsi /* buffer */
mov $len, %rdx /* len */
syscall
/* exit */
mov $60, %rax /* syscall number */
mov $0, %rdi /* exit status */
syscall
msg:
.ascii "hello\n"
len = . - msg
Make system calls from C
Here's an example with register constraints: How to invoke a system call via syscall or sysenter in inline assembly?
aarch64
I've shown a minimal runnable userland example at: https://reverseengineering.stackexchange.com/questions/16917/arm64-syscalls-table/18834#18834 TODO grep kernel code here, should be easy.
You can use LENGTH() for CHAR / VARCHAR2 and DBMS_LOB.GETLENGTH() for CLOB. Both functions will count actual characters (not bytes).
See the linked documentation if you do need bytes.
I think that most fast way should not taking higher than O(n^2) also in this way you can use just O(1) space :
the way to do that is to swap in pairs because when you transpose a matrix then what you do is: M[i][j]=M[j][i] , so store M[i][j] in temp, then M[i][j]=M[j][i],and the last step : M[j][i]=temp. this could be done by one pass so it should take O(n^2)
//add cookie
var panelIdCookie = new HttpCookie("panelIdCookie");
panelIdCookie.Values.Add("panelId", panelId.ToString(CultureInfo.InvariantCulture));
panelIdCookie.Expires = DateTime.Now.AddMonths(2);
Response.Cookies.Add(panelIdCookie);
//read cookie
var httpCookie = Request.Cookies["panelIdCookie"];
if (httpCookie != null)
{
panelId = Convert.ToInt32(httpCookie["panelId"]);
}
This works well for me:
jQuery(document).ready(function($) {
var intputElements = document.getElementsByTagName("INPUT");
for (var i = 0; i < intputElements.length; i++) {
intputElements[i].oninvalid = function (e) {
e.target.setCustomValidity("");
if (!e.target.validity.valid) {
if (e.target.name == "email") {
e.target.setCustomValidity("Please enter a valid email address.");
} else {
e.target.setCustomValidity("Please enter a password.");
}
}
}
}
});
and the form I'm using it with (truncated):
<form id="welcome-popup-form" action="authentication" method="POST">
<input type="hidden" name="signup" value="1">
<input type="email" name="email" id="welcome-email" placeholder="Email" required></div>
<input type="password" name="passwd" id="welcome-passwd" placeholder="Password" required>
<input type="submit" id="submitSignup" name="signup" value="SUBMIT" />
</form>
Try this:
Select Project_Name, ReleaseDate, TaskName
From DB_Table
Where Project_Name like '{?Pm-?Proj_Name}'
And ReleaseDate >= currentdate
currentdate should be a valid database function or field to work. If you are using MS SQL Server, use GETDATE() instead.
If all you want is to filter records in a subreport based on a parameter from the main report, it might be easier to simply add the table to the subreport, and then create a Project_Name link between the main report and subreport. You can then use the Select Expert to filter the ReleaseDate as well.
(Window) If Pilow not work try download pil at http://www.pythonware.com/products/pil/
According to Apple's Data Formatting Guide
Creating a date formatter is not a cheap operation. If you are likely to use a formatter frequently, it is typically more efficient to cache a single instance than to create and dispose of multiple instances. One approach is to use a static variable
And while I agree with @Leon that this should be failable initializer, when you enter seed data, we could have one that isn't failable (just like there is UIImage(imageLiteralResourceName:)
).
So here's my approach:
extension DateFormatter {
static let yyyyMMdd: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd"
formatter.calendar = Calendar(identifier: .iso8601)
formatter.timeZone = TimeZone(secondsFromGMT: 0)
formatter.locale = Locale(identifier: "en_US_POSIX")
return formatter
}()
}
extension Date {
init?(yyyyMMdd: String) {
guard let date = DateFormatter.yyyyMMdd.date(from: yyyyMMdd) else { return nil }
self.init(timeInterval: 0, since: date)
}
init(dateLiteralString yyyyMMdd: String) {
let date = DateFormatter.yyyyMMdd.date(from: yyyyMMdd)!
self.init(timeInterval: 0, since: date)
}
}
And now enjoy simply calling:
// For seed data
Date(dateLiteralString: "2020-03-30")
// When parsing data
guard let date = Date(yyyyMMdd: "2020-03-30") else { return nil }
*nix provides a nice little command which makes our lives a lot easier.
GET:
with JSON:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource
with XML:
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource
POST:
For posting data:
curl --data "param1=value1¶m2=value2" http://hostname/resource
For file upload:
curl --form "[email protected]" http://hostname/resource
RESTful HTTP Post:
curl -X POST -d @filename http://hostname/resource
For logging into a site (auth):
curl -d "username=admin&password=admin&submit=Login" --dump-header headers http://localhost/Login
curl -L -b headers http://localhost/
Pretty-printing the curl results:
For JSON:
If you use npm
and nodejs
, you can install json
package by running this command:
npm install -g json
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | json
If you use pip
and python
, you can install pjson
package by running this command:
pip install pjson
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | pjson
If you use Python 2.6+, json tool is bundled within.
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | python -m json.tool
If you use gem
and ruby
, you can install colorful_json
package by running this command:
gem install colorful_json
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | cjson
If you use apt-get
(aptitude package manager of your Linux distro), you can install yajl-tools
package by running this command:
sudo apt-get install yajl-tools
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | json_reformat
For XML:
If you use *nix with Debian/Gnome envrionment, install libxml2-utils
:
sudo apt-get install libxml2-utils
Usage:
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource | xmllint --format -
or install tidy
:
sudo apt-get install tidy
Usage:
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource | tidy -xml -i -
Saving the curl response to a file
curl http://hostname/resource >> /path/to/your/file
or
curl http://hostname/resource -o /path/to/your/file
For detailed description of the curl command, hit:
man curl
For details about options/switches of the curl command, hit:
curl -h
@echo off
color 1F
@sc query >%COMPUTERNAME%_START.TXT
find /I "AcPrfMgrSvc" %COMPUTERNAME%_START.TXT >nul
IF ERRORLEVEL 0 EXIT
IF ERRORLEVEL 1 NET START "AcPrfMgrSvc"
.php
file and run in destination server<html>
<form method="post">
<input name="url" size="50" />
<input name="submit" type="submit" />
</form>
<?php
// maximum execution time in seconds
set_time_limit (24 * 60 * 60);
if (!isset($_POST['submit'])) die();
// folder to save downloaded files to. must end with slash
$destination_folder = 'downloads/';
$url = $_POST['url'];
$newfname = $destination_folder . basename($url);
$file = fopen ($url, "rb");
if ($file) {
$newf = fopen ($newfname, "wb");
if ($newf)
while(!feof($file)) {
fwrite($newf, fread($file, 1024 * 8 ), 1024 * 8 );
}
}
if ($file) {
fclose($file);
}
if ($newf) {
fclose($newf);
}
?>
</html>
For the record, none of the answers above helped except for one. To summarize, you can do the backup operation using --files-from=
by using either:
rsync -aSvuc `cat rsync-src-files` /mnt/d/rsync_test/
OR
rsync -aSvuc --recursive --files-from=rsync-src-files . /mnt/d/rsync_test/
The former command is self explanatory, beside the content of the file rsync-src-files
which I will elaborate down below. Now, if you want to use the latter version, you need to keep in mind the following four remarks:
--files-from
and the source directory--recursive
. rsync-src-files
is a user created file and it was placed within the src directory for this testrsyn-src-files
contain the files and folders to copy and they are taken relative to the source directory. IMPORTANT: Make sure there is not trailing spaces or blank lines in the file. In the example below, there are only two lines, not three (Figure it out by chance). Content of rsynch-src-files
is:folderName1
folderName2
SELECT ROUTINE_NAME, ROUTINE_DEFINITION
FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_DEFINITION LIKE '%Foo%'
AND ROUTINE_TYPE='PROCEDURE'
SELECT OBJECT_NAME(id)
FROM SYSCOMMENTS
WHERE [text] LIKE '%Foo%'
AND OBJECTPROPERTY(id, 'IsProcedure') = 1
GROUP BY OBJECT_NAME(id)
SELECT OBJECT_NAME(object_id)
FROM sys.sql_modules
WHERE OBJECTPROPERTY(object_id, 'IsProcedure') = 1
AND definition LIKE '%Foo%'
When you remove a cell of your tableview, you also have to remove your array object at index x.
I think you can remove it by using a swipe gesture. The table view will call the Delegate:
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
//add code here for when you hit delete
[dataSourceArray removeObjectAtIndex:indexPath.row];
}
}
After removing the object. You have to reload the tableview use. Add the following line in your code:
[tableView reloadData];
after that, you have deleted the row successfully. And when you reload the view or adding data to the DataSource the object will not be there anymore.
For all other is the answer from Kurbz correct.
I only wanted to remind you that the delegate function won't be enough if you want to remove the object from the DataSource array.
I hope I have helped you out.
if you can, use flexbox:
<ul>
<li>HOME</li>
<li>ABOUT US</li>
<li>SERVICES</li>
<li>PREVIOUS PROJECTS</li>
<li>TESTIMONIALS</li>
<li>NEWS</li>
<li>RESEARCH & DEV</li>
<li>CONTACT</li>
</ul>
ul {
display: flex;
justify-content:space-between;
list-style-type: none;
}
jsfiddle: http://jsfiddle.net/RAaJ8/
Browser support is actually quite good (with prefixes an other nasty stuff): http://caniuse.com/flexbox
This command will get you the last commit message:
git log -1 --oneline --format=%s | sed 's/^.*: //'
outputs something similar to:
Create FUNDING.yml
You can change the -1 to any negative number to increase the range of commit messages retrieved
Use css:
<style>
input[name=btnsubmit]:active {
color: green;
}
</style>
I have found a good work-around for continue (love the break sample above). Here I do not want to list "agency". In PHP I'd "continue" but in twig, I came up with alternative:
{% for basename, perms in permsByBasenames %}
{% if basename == 'agency' %}
{# do nothing #}
{% else %}
<a class="scrollLink" onclick='scrollToSpot("#{{ basename }}")'>{{ basename }}</a>
{% endif %}
{% endfor %}
OR I simply skip it if it doesn't meet my criteria:
{% for tr in time_reports %}
{% if not tr.isApproved %}
.....
{% endif %}
{% endfor %}
Excel has no way of gathering that attribute with it's built-in functions. If you're willing to use some VB, all your color-related questions are answered here:
http://www.cpearson.com/excel/colors.aspx
Example form the site:
The SumColor function is a color-based analog of both the SUM and SUMIF function. It allows you to specify separate ranges for the range whose color indexes are to be examined and the range of cells whose values are to be summed. If these two ranges are the same, the function sums the cells whose color matches the specified value. For example, the following formula sums the values in B11:B17 whose fill color is red.
=SUMCOLOR(B11:B17,B11:B17,3,FALSE)
If you use jQuery you can write:
$( _checkbox ).click( function( e ){ /*process event here*/ } )
The spirit of the question, I think, was not truly answered. No, you cannot use a video tag to play rtsp streams as of now. The other answer regarding the link to Chromium guy's "never" is a bit misleading as the linked thread / answer is not directly referring to Chrome playing rtsp via the video tag. Read the entire linked thread, especially the comments at the very bottom and links to other threads.
The real answer is this: No, you cannot just put a video tag on an html 5 page and play rtsp. You need to use a Javascript library of some sort (unless you want to get into playing things with flash and silverlight players) to play streaming video. {IMHO} At the rate the html 5 video discussion and implementation is going, the various vendors of proprietary video standards are not interested in helping this move forward so don't count of the promised ease of use of the video tag unless the browser makers take it upon themselves to somehow solve the problem...again, not likely.{/IMHO}
Here is a way to add an as_dict() method on every class, as well as any other method you want to have on every single class. Not sure if this is the desired way or not, but it works...
class Base(object):
def as_dict(self):
return dict((c.name,
getattr(self, c.name))
for c in self.__table__.columns)
Base = declarative_base(cls=Base)
left: 50% works resectively to the nearest parent with static width assigned. Try width: 500px or something on parent div. Alternatively, make the content you need to center display:block and set left and right margins to auto.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
titolorecuperato = (TextView) findViewById(R.id.textView);
String stitolo = titolorecuperato.getText().toString();
Button btnHome = (Button) findViewById(R.id.button);
btnHome.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
}
});
same thing as Nic007 said before.
You do need to write code inside "onCreate" method. Sorry me too for the indent... (first comment here)
Not really an answer to your question but validating url's is really a serious p.i.t.a You're probably just better off validating the domainname and leave query part of the url be. That is my experience. You could also resort to pinging the url and seeing if it results in a valid response but that might be too much for such a simple task.
Regular expressions to detect url's are abundant, google it :)
I'm writing this answer w.r.t. to python 3, as I've initially got the same problem.
I was supposed to get data from arduino using PySerial
, and write them in a .csv file. Each reading in my case ended with '\r\n'
, so newline was always separating each line.
In my case, newline=''
option didn't work. Because it showed some error like :
with open('op.csv', 'a',newline=' ') as csv_file:
ValueError: illegal newline value: ''
So it seemed that they don't accept omission of newline here.
Seeing one of the answers here only, I mentioned line terminator in the writer object, like,
writer = csv.writer(csv_file, delimiter=' ',lineterminator='\r')
and that worked for me for skipping the extra newlines.
I think it's worth showing the difference between the various options mentioned - often a picture is worth a thousand words.
>>> from pprint import pprint
>>> import inspect
>>>
>>> class a():
x = 1 # static class member
def __init__(self):
self.y = 2 # static instance member
@property
def dyn_prop(self): # dynamic property
print('DYNPROP WAS HERE')
return 3
def test(self): # function member
pass
@classmethod
def myclassmethod(cls): # class method; static methods behave the same
pass
>>> i = a()
>>> pprint(i.__dict__)
{'y': 2}
>>> pprint(vars(i))
{'y': 2}
>>> pprint(dir(i))
['__class__',
'__delattr__',
'__dict__',
'__dir__',
'__doc__',
'__eq__',
'__format__',
'__ge__',
'__getattribute__',
'__gt__',
'__hash__',
'__init__',
'__init_subclass__',
'__le__',
'__lt__',
'__module__',
'__ne__',
'__new__',
'__reduce__',
'__reduce_ex__',
'__repr__',
'__setattr__',
'__sizeof__',
'__str__',
'__subclasshook__',
'__weakref__',
'dyn_prop',
'myclassmethod',
'test',
'x',
'y']
>>> pprint(inspect.getmembers(i))
DYNPROP WAS HERE
[('__class__', <class '__main__.a'>),
('__delattr__',
<method-wrapper '__delattr__' of a object at 0x000001CB891BC7F0>),
('__dict__', {'y': 2}),
('__dir__', <built-in method __dir__ of a object at 0x000001CB891BC7F0>),
('__doc__', None),
('__eq__', <method-wrapper '__eq__' of a object at 0x000001CB891BC7F0>),
('__format__', <built-in method __format__ of a object at 0x000001CB891BC7F0>),
('__ge__', <method-wrapper '__ge__' of a object at 0x000001CB891BC7F0>),
('__getattribute__',
<method-wrapper '__getattribute__' of a object at 0x000001CB891BC7F0>),
('__gt__', <method-wrapper '__gt__' of a object at 0x000001CB891BC7F0>),
('__hash__', <method-wrapper '__hash__' of a object at 0x000001CB891BC7F0>),
('__init__',
<bound method a.__init__ of <__main__.a object at 0x000001CB891BC7F0>>),
('__init_subclass__',
<built-in method __init_subclass__ of type object at 0x000001CB87CA6A70>),
('__le__', <method-wrapper '__le__' of a object at 0x000001CB891BC7F0>),
('__lt__', <method-wrapper '__lt__' of a object at 0x000001CB891BC7F0>),
('__module__', '__main__'),
('__ne__', <method-wrapper '__ne__' of a object at 0x000001CB891BC7F0>),
('__new__', <built-in method __new__ of type object at 0x00007FFCA630AB50>),
('__reduce__', <built-in method __reduce__ of a object at 0x000001CB891BC7F0>),
('__reduce_ex__',
<built-in method __reduce_ex__ of a object at 0x000001CB891BC7F0>),
('__repr__', <method-wrapper '__repr__' of a object at 0x000001CB891BC7F0>),
('__setattr__',
<method-wrapper '__setattr__' of a object at 0x000001CB891BC7F0>),
('__sizeof__', <built-in method __sizeof__ of a object at 0x000001CB891BC7F0>),
('__str__', <method-wrapper '__str__' of a object at 0x000001CB891BC7F0>),
('__subclasshook__',
<built-in method __subclasshook__ of type object at 0x000001CB87CA6A70>),
('__weakref__', None),
('dyn_prop', 3),
('myclassmethod', <bound method a.myclassmethod of <class '__main__.a'>>),
('test', <bound method a.test of <__main__.a object at 0x000001CB891BC7F0>>),
('x', 1),
('y', 2)]
To summarize:
vars()
and __dict__
only return instance-local properties;dir()
returns everything, but only as a list of string member names; dynamic properties are not called;inspect.getmembers()
returns everything, as a list of tuples (name, value)
; it actually runs dynamic properties, and accepts an optional predicate
argument that can filter out members by value.So my common-sense approach is typically to use dir()
on the command line, and getmembers()
in programs, unless specific performance considerations apply.
Note that, to keep things cleaner, I did not include __slots__
- if present, it was explicitly put there to be queried, and should be used directly. I also did not cover metaclasses, which can get a bit hairy (most people will never use them anyway).
Suppose you have below String.
Our Deluxe cabins are warm, cozy & comfortable
var str = $("p").text(); // get the text from <p> tag
$('p').html(str).text(); // Now,decode html entities in your variable i.e
str and assign back to
tag.
that's it.
Your Application Pool is in classic mode but your Application need integrated mode to fire. change it to Integrated Mode:
Open IIS Manager
Application Pool
Select pool that your app are run in it
In right panel select Basic Setting
Manage Pipeline Mode change to Integrated
You can remove a specific event handler that was attached by on
, using off
$("#ID").on ("eventName", additionalCss, handlerFunction);
// to remove the specific handler
$("#ID").off ("eventName", additionalCss, handlerFunction);
Using this, you will remove only handlerFunction
Another good practice, is to set a nameSpace for multiple attached events
$("#ID").on ("eventName1.nameSpace", additionalCss, handlerFunction1);
$("#ID").on ("eventName2.nameSpace", additionalCss, handlerFunction2);
// ...
$("#ID").on ("eventNameN.nameSpace", additionalCss, handlerFunctionN);
// and to remove handlerFunction from 1 to N, just use this
$("#ID").off(".nameSpace");
While installing Netbeans itself, you will get an option which servers needs to be installed and integrated with Netbeans. First screen itself will show.
Another option is to reinstall Netbeans by closing all the open projects.
you can convert like below code snippet
Collection<A> obj=new Collection<return ListRetunAPI()>
In my case, you need to convert the column(you think this column is numeric, but actually not) to numeric
geom_segment(data=tmpp,
aes(x=start_pos,
y=lib.complexity,
xend=end_pos,
yend=lib.complexity)
)
# to
geom_segment(data=tmpp,
aes(x=as.numeric(start_pos),
y=as.numeric(lib.complexity),
xend=as.numeric(end_pos),
yend=as.numeric(lib.complexity))
)
Solved this by adding following
RewriteCond %{ENV:REDIRECT_STATUS} 200 [OR]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
Using =
causes the variable to be assigned a value. If the variable already had a value, it is replaced. This value will be expanded when it is used. For example:
HELLO = world
HELLO_WORLD = $(HELLO) world!
# This echoes "world world!"
echo $(HELLO_WORLD)
HELLO = hello
# This echoes "hello world!"
echo $(HELLO_WORLD)
Using :=
is similar to using =
. However, instead of the value being expanded when it is used, it is expanded during the assignment. For example:
HELLO = world
HELLO_WORLD := $(HELLO) world!
# This echoes "world world!"
echo $(HELLO_WORLD)
HELLO = hello
# Still echoes "world world!"
echo $(HELLO_WORLD)
HELLO_WORLD := $(HELLO) world!
# This echoes "hello world!"
echo $(HELLO_WORLD)
Using ?=
assigns the variable a value iff the variable was not previously assigned. If the variable was previously assigned a blank value (VAR=
), it is still considered set I think. Otherwise, functions exactly like =
.
Using +=
is like using =
, but instead of replacing the value, the value is appended to the current one, with a space in between. If the variable was previously set with :=
, it is expanded I think. The resulting value is expanded when it is used I think. For example:
HELLO_WORLD = hello
HELLO_WORLD += world!
# This echoes "hello world!"
echo $(HELLO_WORLD)
If something like HELLO_WORLD = $(HELLO_WORLD) world!
were used, recursion would result, which would most likely end the execution of your Makefile. If A := $(A) $(B)
were used, the result would not be the exact same as using +=
because B
is expanded with :=
whereas +=
would not cause B
to be expanded.
There's a more efficient way to do this in MongoDB 2.2+ now that you can use numeric array indexes in query object keys.
// Find all docs that have at least two name array elements.
db.accommodations.find({'name.1': {$exists: true}})
You can support this query with an index that uses a partial filter expression (requires 3.2+):
// index for at least two name array elements
db.accommodations.createIndex(
{'name.1': 1},
{partialFilterExpression: {'name.1': {$exists: true}}}
);
you can use JsonConvert.SerializeObject()
JsonConvert.SerializeObject(myObject) // myObject is returned by JObject.Parse() method
You may also use box-shadow
and add transparency to that dashed border
via background-clip
to let you see body
background
.
example
h1 {_x000D_
text-align: center;_x000D_
margin: auto;_x000D_
box-shadow: 0 0 0 5px #1761A2;_x000D_
border: dashed 3px #1761A2;_x000D_
background: linear-gradient(#1761A2, #1761A2) no-repeat;_x000D_
background-clip: border-box;_x000D_
font-size: 2.5em;_x000D_
text-shadow: 0 0 2px white, 0 0 2px white, 0 0 2px white, 0 0 2px white, 0 0 2px white;_x000D_
font-size: 2.5em;_x000D_
min-width: 12em;_x000D_
}_x000D_
body {_x000D_
background: linear-gradient(to bottom left, yellow, gray, tomato, purple, lime, yellow, gray, tomato, purple, lime, yellow, gray, tomato, purple, lime);_x000D_
height: 100vh;_x000D_
margin: 0;_x000D_
display: flex;_x000D_
}_x000D_
::first-line {_x000D_
color: white;_x000D_
text-transform: uppercase;_x000D_
font-size: 0.7em;_x000D_
text-shadow: 0 0_x000D_
}_x000D_
code {_x000D_
color: tomato;_x000D_
text-transform: uppercase;_x000D_
text-shadow: 0 0;_x000D_
}_x000D_
em {_x000D_
mix-blend-mode: screen;_x000D_
text-shadow: 0 0 2px white, 0 0 2px white, 0 0 2px white, 0 0 2px white, 0 0 2px white_x000D_
}
_x000D_
<h1>transparent dashed border<br/>_x000D_
<em>with</em> <code>background-clip</code>_x000D_
</h1>
_x000D_
I think the problem is making sure that MySQL server has the rights to the file and can edit it.
If you can get it to have access to the file, then you can try setting:
SET GLOBAL slow_query_log = 1;
If not, you can always 'reload' the server after changing the configuration file. On linux its usually /etc/init.d/mysql reload
I had tried everything I could find on the net including the methods that have been given on this answer. After almost trying to solve the problem for whole day I have found the solution that have worked for me like a charm.
in the file WebApiConfig in folder App_Start, comment all the lines of code and add the following code:
`public static void Register(HttpConfiguration config)
{
// Web API configuration and services
config.EnableCors();
var enableCorsAttribute = new EnableCorsAttribute("*",
"Origin, Content-Type, Accept",
"GET, PUT, POST, DELETE, OPTIONS");
config.EnableCors(enableCorsAttribute);
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
//routeTemplate: "api/{controller}/{id}",
routeTemplate: "api/{controller}/{action}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Formatters.Add(new BrowserJsonFormatter());
}
public class BrowserJsonFormatter : JsonMediaTypeFormatter
{
public BrowserJsonFormatter()
{
this.SupportedMediaTypes.Add(new MediaTypeHeaderValue("text/html"));
this.SerializerSettings.Formatting = Formatting.Indented;
}
public override void SetDefaultContentHeaders(Type type, HttpContentHeaders headers, MediaTypeHeaderValue mediaType)
{
base.SetDefaultContentHeaders(type, headers, mediaType);
headers.ContentType = new MediaTypeHeaderValue("application/json");
}
}`
This works for me to find queries on any database in the instance. I'm sysadmin on the instance (check your privileges):
SELECT deqs.last_execution_time AS [Time], dest.text AS [Query], dest.*
FROM sys.dm_exec_query_stats AS deqs
CROSS APPLY sys.dm_exec_sql_text(deqs.sql_handle) AS dest
WHERE dest.dbid = DB_ID('msdb')
ORDER BY deqs.last_execution_time DESC
This is the same answer that Aaron Bertrand provided but it wasn't placed in an answer.
You should have a 'skeleton' somewhere in /etc
, probably /etc/skeleton
, or check the default settings, probably /etc/default
or something. Those are scripts that define standard environment variables getting set during a login.
If it is just for your own account: check the (hidden) file ~/.profile
and ~/.login
. Or generate them, if they don't exist. These are also evaluated by the login process.
You should use:
dir.Delete(true);
for recursively deleting the contents of that folder too. See MSDN DirectoryInfo.Delete() overloads.
The following approach works for me:
<exclude name="**/dir_name_to_exclude/**" />
Looks to me like you need to set the yellow
on #doc3
and then get rid of the white
that is called out on the #yui-main
(which is covering up the color of the #doc3
). This gets you yellow between header and footer.
using Log to solve the problem....
static String BytesToString(long byteCount)
{
string[] suf = { "B", "KB", "MB", "GB", "TB", "PB", "EB" }; //Longs run out around EB
if (byteCount == 0)
return "0" + suf[0];
long bytes = Math.Abs(byteCount);
int place = Convert.ToInt32(Math.Floor(Math.Log(bytes, 1024)));
double num = Math.Round(bytes / Math.Pow(1024, place), 1);
return (Math.Sign(byteCount) * num).ToString() + suf[place];
}
Also in c#, but should be a snap to convert. Also I rounded to 1 decimal place for readability.
Basically Determine the number of decimal places in Base 1024 and then divide by 1024^decimalplaces.
And some samples of use and output:
Console.WriteLine(BytesToString(9223372036854775807)); //Results in 8EB
Console.WriteLine(BytesToString(0)); //Results in 0B
Console.WriteLine(BytesToString(1024)); //Results in 1KB
Console.WriteLine(BytesToString(2000000)); //Results in 1.9MB
Console.WriteLine(BytesToString(-9023372036854775807)); //Results in -7.8EB
Edit: Was pointed out that I missed a math.floor, so I incorporated it. (Convert.ToInt32 uses rounding, not truncating and that's why Floor is necessary.) Thanks for the catch.
Edit2: There were a couple of comments about negative sizes and 0 byte sizes, so I updated to handle those 2 cases.
This is how PHP v7 setcookie() code works when you do:
<?php
setcookie('user_id','');
setcookie('session','');
?>
From the output of tcpdump while sniffing on the port 80, the server sends to the client (Browser) the following HTTP headers:
Set-Cookie: user_id=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0
Set-Cookie: session=deleted; expires=Thu, 01-Jan-1970 00:00:01 GMT; Max-Age=0
Observing packets in the following requests the Browser no longer sends these cookies in the headers
We use the Assergs Application Framework themes:
They have a nice office look and feel to it :)
Here is way to avoid absolute divs and tables if you know parent's height:
<div class="parent">
<div class="child"> <a href="#">Home</a>
</div>
</div>
CSS:
.parent {
line-height:80px;
border: 1px solid black;
}
.child {
line-height:normal;
display: inline-block;
vertical-align:bottom;
border: 1px solid red;
}
JsFiddle:
The choice of when to use a surrogate primary key as opposed to a natural key is tricky. Answers such as, always or never, are rarely useful. I find that it depends on the situation.
As an example, I have the following tables:
CREATE TABLE toll_booths (
id INTEGER NOT NULL PRIMARY KEY,
name VARCHAR(255) NOT NULL,
...
UNIQUE(name)
)
CREATE TABLE cars (
vin VARCHAR(17) NOT NULL PRIMARY KEY,
license_plate VARCHAR(10) NOT NULL,
...
UNIQUE(license_plate)
)
CREATE TABLE drive_through (
id INTEGER NOT NULL PRIMARY KEY,
toll_booth_id INTEGER NOT NULL REFERENCES toll_booths(id),
vin VARCHAR(17) NOT NULL REFERENCES cars(vin),
at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
amount NUMERIC(10,4) NOT NULL,
...
UNIQUE(toll_booth_id, vin)
)
We have two entity tables (toll_booths
and cars
) and a transaction table (drive_through
). The toll_booth
table uses a surrogate key because it has no natural attribute that is not guaranteed to change (the name can easily be changed). The cars
table uses a natural primary key because it has a non-changing unique identifier (vin
). The drive_through
transaction table uses a surrogate key for easy identification, but also has a unique constraint on the attributes that are guaranteed to be unique at the time the record is inserted.
http://database-programmer.blogspot.com has some great articles on this particular subject.
Two solutions for you.
Solution 1 - Just use the key. You have not said that you can not use it. :)
<?php
// Get the first element of this array.
$array = array( 4 => 'apple', 7 => 'orange', 13 => 'plum' );
// Gets the first element by key
$result = $array[4];
// Expected result: string apple
assert('$result === "apple" /* Expected result: string apple. */');
?>
Solution 2 - array_flip() + key()
<?php
// Get first element of this array. Expected result: string apple
$array = array( 4 => 'apple', 7 => 'orange', 13 => 'plum' );
// Turn values to keys
$array = array_flip($array);
// You might thrown a reset in just to make sure
// that the array pointer is at the first element.
// Also, reset returns the first element.
// reset($myArray);
// Return the first key
$firstKey = key($array);
assert('$firstKey === "apple" /* Expected result: string apple. */');
?>
Solution 3 - array_keys()
echo $array[array_keys($array)[0]];
For those also using typescript on node-js and are getting a ReferenceError: fetch is not defined
error
npm install
these packages:
"amazon-cognito-identity-js": "3.0.11"
"node-fetch": "^2.3.0"
Then include:
import Global = NodeJS.Global;
export interface GlobalWithCognitoFix extends Global {
fetch: any
}
declare const global: GlobalWithCognitoFix;
global.fetch = require('node-fetch');
Here is another way you can get to the root of your website without hard coding the url:
var response = Request.CreateResponse(HttpStatusCode.Moved);
string fullyQualifiedUrl = Request.RequestUri.GetLeftPart(UriPartial.Authority);
response.Headers.Location = new Uri(fullyQualifiedUrl);
Note: Will only work if both your MVC website and WebApi are on the same URL
Try this:
var momentObj = $("#start_ts").datepicker("getDate");
var yourDate = momentObj.format('L');
Maybe by using external native code through JNI?
With pure Java, it is almost impossible.
But that is about a "standard" type of memory leak, when you cannot access the memory anymore, but it is still owned by the application. You can instead keep references to unused objects, or open streams without closing them afterwards.
Speaking for the JS only solutions, I've found that, inelegant as it may be, a simple indexed for
loop is more performant than its alternatives.
Extracting single property from a 100000 element array (via jsPerf)
Traditional for loop 368 Ops/sec
var vals=[];
for(var i=0;i<testArray.length;i++){
vals.push(testArray[i].val);
}
ES6 for..of loop 303 Ops/sec
var vals=[];
for(var item of testArray){
vals.push(item.val);
}
Array.prototype.map 19 Ops/sec
var vals = testArray.map(function(a) {return a.val;});
TL;DR - .map() is slow, but feel free to use it if you feel readability is worth more than performance.
Edit #2: 6/2019 - jsPerf link broken, removed.
Copy & Paste.
To Add a folder, all the sub-directories, and files we can also Copy and Paste. For example we can:
Right click in Windows explorer on the folder, and Copy on the folder with many files and folders.
Then in Visual Studio Solution explorer, right click on the destination folder and click paste.
Optional add to TFS; Then in the top folder right click and check in to TFS to check in all sub-folders and files.
You need to pass a function to setTimeout
$(window).load(function () {
window.setTimeout(function () {
window.location.href = "https://www.google.co.in";
}, 5000)
});
There are two ways. One is to aggregate:
SELECT array_agg(column_name::TEXT)
FROM information.schema.columns
WHERE table_name = 'aean'
The other is to use an array constructor:
SELECT ARRAY(
SELECT column_name
FROM information.schema.columns
WHERE table_name = 'aean')
I'm presuming this is for plpgsql. In that case you can assign it like this:
colnames := ARRAY(
SELECT column_name
FROM information.schema.columns
WHERE table_name='aean'
);
Another working solution for IE specific styling is
<html data-useragent="Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0)">
And then your selector
html[data-useragent*='MSIE 10.0'] body .my-class{
margin-left: -0.4em;
}
#include <stdio.h>
int main() {
int c;
while((c = getchar()) != EOF) { //precedence of != is greater than =, so use braces
printf("%d\n", c);
}
printf("%d - at EOF\n", c);
}
I think this is right way to check value of EOF. And I checked the output.
For INPUT: abc and Enter I got OUTPUT: 97 98 99 10. ( the ASCII values)
For INPUT Ctrl-D I got OUTPUT: -1 - at EOF. So I think -1 is the value for EOF.
Try other inputs instead of Ctrl-D, like Ctrl-Z. I think it varies from compiler to compiler.
I searched for this very question and when I saw the answers I ended up creating something different (because I favor less code over most other things most of the time) that should work in the vast majority of cases. Basically turn the array into a string with array elements separated by some delimiter character, and then wrap the search value in the delimiter character and pass through instr.
Function is_in_array(value As String, test_array) As Boolean
If Not (IsArray(test_array)) Then Exit Function
If InStr(1, "'" & Join(test_array, "'") & "'", "'" & value & "'") > 0 _
Then is_in_array = True
End Function
And you'd execute the function like this:
test = is_in_array(1, array(1, 2, 3))
A simple way to find this out in Windows is to run SQLPlus from your Oracle homes's bin directory and then check Task Manager. If it is a 32-bit version of SQLPlus, you'll see a process on the Processes tab that looks like this:
sqlplus.exe *32
If it is 64-bit, the process will look like this:
sqlplus.exe
I had this problem. With my galaxy S2. So came here for advice, but couldn't find anything specific. Then I found this 'Kies' software on the Samsung site, under the section for my exact model of phone, under downloads, after clicking software. It installed the right USB drivers as part of the process of installing Kies and so my phone instantly then became visible on eclipse.
The Kies version for Galaxy S2 (GT I1900) = http://www.samsung.com/uk/support/model/GT-I9100LKAXEU-downloads#
There are other versions of Kies for other android models of course.
I had to do this on the web, so here's a coffeescript version of @scottyab's answer above:
points = 8
radius = 10
center = {x: 0, y: 0}
drawCirclePoints = (points, radius, center) ->
slice = 2 * Math.PI / points
for i in [0...points]
angle = slice * i
newX = center.x + radius * Math.cos(angle)
newY = center.y + radius * Math.sin(angle)
point = {x: newX, y: newY}
console.log point
drawCirclePoints(points, radius, center)
Since in your question you said it's a PHP script, maybe the best solution could be to simply add in your script:
ignore_user_abort(TRUE);
In this way even if wget
terminates, the PHP script goes on being processed at least until it does not exceeds max_execution_time
limit (ini directive: 30 seconds by default).
As per wget
anyay you should not change its timeout, according to the UNIX manual the default wget timeout is 900 seconds (15 minutes), whis is much larger that the 5-6 minutes you need.
$('input[type=button]' ).click(function() {
var bid = jQuery(this).attr('id'); // button ID
var trid = $(this).parents('tr:first').attr('id'); // table row ID
});
The code is
document.addEventListener('keydown', function(event){
alert(event.keyCode);
} );
This return the ascii code of the key. If you need the key representation, use event.key (This will return 'a', 'o', 'Alt'...)
This issue may also occur if you have multiple versions of the same support library android-support-v4.jar
. If your project is using other library projects that contain different-2 versions of the support library. To resolve the issue keep the same version of support library at each place.
If your JSON is without key you can do it like this:
library[library.length] = {"foregrounds" : foregrounds,"backgrounds" : backgrounds};
So, try this:
var library = {[{
"title" : "Gold Rush",
"foregrounds" : ["Slide 1","Slide 2","Slide 3"],
"backgrounds" : ["1.jpg","","2.jpg"]
}, {
"title" : California",
"foregrounds" : ["Slide 1","Slide 2","Slide 3"],
"backgrounds" : ["3.jpg","4.jpg","5.jpg"]
}]
}
Then:
library[library.length] = {"title" : "Gold Rush", "foregrounds" : ["Howdy","Slide 2"], "backgrounds" : ["1.jpg",""]};
The code you have given, needs to be corrected. In form tag you have to enclosed the onClick attribute value in double quote:
"window.open('google.htm','','scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,status=no');"
You also need to take care that first parameter of window.open
should also be enclosed using quotes.
Many different ways have already been described by the other answers. However, many of them either involved ShowDialog()
or that form1
stay open but hidden. The best and most intuitive way in my opinion is to simply close form1
and then create form2
from an outside location (i.e. not from within either of those forms). In the case where form1
was created in Main
, form2
can simply be created using Application.Run
just like form1
before. Here's an example scenario:
I need the user to enter their credentials in order for me to authenticate them somehow. Afterwards, if authentication was successful, I want to show the main application to the user. In order to accomplish this, I'm using two forms: LogingForm
and MainForm
. The LoginForm
has a flag that determines whether authentication was successful or not. This flag is then used to decide whether to create the MainForm
instance or not. Neither of these forms need to know about the other and both forms can be opened and closed gracefully. Here's the code for this:
class LoginForm : Form
{
public bool UserSuccessfullyAuthenticated { get; private set; }
void LoginButton_Click(object s, EventArgs e)
{
if(AuthenticateUser(/* ... */))
{
UserSuccessfullyAuthenticated = true;
Close();
}
}
}
static class Program
{
[STAThread]
static void Main()
{
LoginForm loginForm = new LoginForm();
Application.Run(loginForm);
if(loginForm.UserSuccessfullyAuthenticated)
{
// MainForm is defined elsewhere
Application.Run(new MainForm());
}
}
}
Looks like PILlow may have changed tostring()
to tobytes()
. When trying to extract RGBA pixels to get them into an OpenGL texture, the following worked for me (within the glTexImage2D
call which I omit for brevity).
from PIL import Image
img = Image.open("mandrill.png").rotate(180).transpose(Image.FLIP_LEFT_RIGHT)
# use img.convert("RGBA").tobytes() as texels
find . -executable -type f
does not really guarantee that the file is executable it will find files with the execution bit set. If you do
chmod a+x image.jpg
the above find will think image.jpg is an executable even if it is really a jpeg image with the execution bit set.
I generally work around the issue with this:
find . -type f -executable -exec file {} \; | grep -wE "executable|shared object|ELF|script|a\.out|ASCII text"
If you want the find to actually print dome information about executable files you can do something like this:
find . -type f -executable -printf "%i.%D %s %m %U %G %C@ %p" 2>/dev/null |while read LINE
do
NAME=$(awk '{print $NF}' <<< $LINE)
file -b $NAME |grep -qEw "executable|shared object|ELF|script|a\.out|ASCII text" && echo $LINE
done
In the above example the file's full pathname is in the last field and must reflect where you look for it with awk "NAME=$(awk '{print $NF}' <<< $LINE)" if the file name was elsewhere in the find output string you need to replace "NF" with the correct numerical position. If your separator is not space you also need to tell awk what your separator is.
We have struggle a lot with this issue, and here's what works for us. If you use the conda-forge channel, it's important to make sure you are using updated packages from conda-forge
, even in your Miniconda
root environment.
So install Miniconda, and then do:
conda config --add channels conda-forge --force
conda update --all -y
conda install nb_conda_kernels -y
conda env create -f custom_env.yml -q --force
jupyter notebook
and your custom environment will show up in Jupyter as an available kernel, as long as ipykernel
was listed for installation in your custom_env.yml
file, like this example:
name: bqplot
channels:
- conda-forge
- defaults
dependencies:
- python>=3.6
- bqplot
- ipykernel
Just to prove it working with a bunch of custom environments, here's a screen grab from Windows:
I don't know Mathematica . . . too bad. But I like the answer above, for the most part.
Still there is a major flaw in relying on the stripes alone to glean the answer (I personally don't have a problem with one manual adjustment). There is an example (listed by Brett Champion, here) presented which shows that they, at times, break up the shirt pattern. So then it becomes a more complex pattern.
I would try an approach of shape id and colors, along with spacial relations. Much like face recognition, you could look for geometric patterns at certain ratios from each other. The caveat is that usually one or more of those shapes is occluded.
Get a white balance on the image, and red a red balance from the image. I believe Waldo is always the same value/hue, but the image may be from a scan, or a bad copy. Then always refer to an array of the colors that Waldo actually is: red, white, dark brown, blue, peach, {shoe color}.
There is a shirt pattern, and also the pants, glasses, hair, face, shoes and hat that define Waldo. Also, relative to other people in the image, Waldo is on the skinny side.
So, find random people to obtain an the height of people in this pic. Measure the average height of a bunch of things at random points in the image (a simple outline will produce quite a few individual people). If each thing is not within some standard deviation from each other, they are ignored for now. Compare the average of heights to the image's height. If the ratio is too great (e.g., 1:2, 1:4, or similarly close), then try again. Run it 10(?) of times to make sure that the samples are all pretty close together, excluding any average that is outside some standard deviation. Possible in Mathematica?
This is your Waldo size. Walso is skinny, so you are looking for something 5:1 or 6:1 (or whatever) ht:wd. However, this is not sufficient. If Waldo is partially hidden, the height could change. So, you are looking for a block of red-white that ~2:1. But there has to be more indicators.
Any of those could apply. These are also negative checks against similar people in the pic -- e.g., #2 negates wearing a red-white apron (too close to shoes), #5 eliminates light colored hair. Also, shape is only one indicator for each of these tests . . . color alone within the specified distance can give good results.
This will narrow down the areas to process.
Storing these results will produce a set of areas that should have Waldo in it. Exclude all other areas (e.g., for each area, select a circle twice as big as the average person size), and then run the process that @Heike laid out with removing all but red, and so on.
Any thoughts on how to code this?
Edit:
Thoughts on how to code this . . . exclude all areas but Waldo red, skeletonize the red areas, and prune them down to a single point. Do the same for Waldo hair brown, Waldo pants blue, Waldo shoe color. For Waldo skin color, exclude, then find the outline.
Next, exclude non-red, dilate (a lot) all the red areas, then skeletonize and prune. This part will give a list of possible Waldo center points. This will be the marker to compare all other Waldo color sections to.
From here, using the skeletonized red areas (not the dilated ones), count the lines in each area. If there is the correct number (four, right?), this is certainly a possible area. If not, I guess just exclude it (as being a Waldo center . . . it may still be his hat).
Then check if there is a face shape above, a hair point above, pants point below, shoe points below, and so on.
No code yet -- still reading the docs.
Is Perl easily available to you?
$ perl -n -e 'if ($. == 7) { print; exit(0); }'
Obviously substitute whatever number you want for 7.
Update September 2016
Installing from vanilla https github URLs now works:
npm install https://github.com/fergiemcdowall/search-index.git
EDIT 1: You can't do this for all modules because you are reading from a source control system, which may well contain invalid/uncompiled/buggy code. So to be clear (although it should go without saying): given that the code in the repo is in an npm-usable state, you can now quite happily install directly from github
EDIT 2: (21-10-2019) We are now living through "peak Typescript/React/Babel", and therefore JavaScript compilation has become quite common. If you need to take compilation into account look into prepare
. That said, NPM modules do not need to be compiled, and it is wise to assume that compilation is not the default, especially for older node modules (and possibly also for very new, bleeding-edge "ESNext"-y ones).
The AWS cli does this (presumably without fetching and iterating through all keys in the bucket) when you run aws s3 ls s3://my-bucket/
, so I figured there must be a way using boto3.
It looks like they indeed use Prefix and Delimiter - I was able to write a function that would get me all directories at the root level of a bucket by modifying that code a bit:
def list_folders_in_bucket(bucket):
paginator = boto3.client('s3').get_paginator('list_objects')
folders = []
iterator = paginator.paginate(Bucket=bucket, Prefix='', Delimiter='/', PaginationConfig={'PageSize': None})
for response_data in iterator:
prefixes = response_data.get('CommonPrefixes', [])
for prefix in prefixes:
prefix_name = prefix['Prefix']
if prefix_name.endswith('/'):
folders.append(prefix_name.rstrip('/'))
return folders
Current date is in yyyy-mm-dd
format. You can convert it into yyyymmdd
format using substring
function:
select substr(current date,1,4)||substr(current date,6,2)||substr(currentdate,9,2)
Try the following command, it worked for me.
cd; cd -
it allows you to kill a task based on the image name like taskkill /im iexplore.exe or taskkill /im notepad.exe
Another solution which I prefer is to use an additional input element for an image of the currency symbol. Here's an example using an image of a magnifying glass within a search text field:
html:
<input type="image" alt="Subscribe" src="/graphics/icons/search-button.png">
<input type="text" placeholder="Search" name="query">
css:
#search input[type="image"] {
background-color: transparent;
border: 0 none;
margin-top: 10px;
vertical-align: middle;
margin: 5px 0 0 5px;
position: absolute;
}
This results in the input on the left sidebar here:
Move into the submodule's directory, then do a git reset --hard
to reset all modified files to their last committed state. Be aware that this will discard all non-committed changes.
the toString()
converts the specified object to a string value.
Think about it from the browser's point of view. For readonly the browser will send in a variable/value pair. For disabled, it won't.
Run this, then look at the URL after you hit submit:
<html>
<form action=foo.html method=get>
<input name=dis type=text disabled value="dis">
<input name=read type=text readonly value="read">
<input name=normal type=text value="normal">
<input type=submit>
</form>
</html>
You can also use sprintf:
char str[1024];
sprintf(str, "somtext %s sometext %s", somevar, somevar);
It does it:
myString.substr(-1);
This returns a substring of myString starting at one character from the end: the last character.
This also works:
myString.charAt(myString.length-1);
And this too:
myString.slice(-1);
I just had the same issue on visual studio 2012. For a internet application project. How to resolve “Server Error in '/' Application” error?
Searching for answer I came across this post, but none of these answer help me. Than I found another post here on stackoverflow that has the answer for resolving this issue. Specified argument was out of the range of valid values. Parameter name: site
H2 is still running (I can guarantee it). You need to use a TCP connection for multiple users such as ->
<property name="javax.persistence.jdbc.url" value="jdbc:h2:tcp://localhost/C:\Database\Data\production;"/>
OR
DriverManager.getConnection("jdbc:h2:tcp://localhost/server~/dbname","username","password");
It also means you need to start the server in TCP mode. Honesetly, it is pretty straight forward in the documentation.
Force kill the process (javaw.exe for Windows), and make sure that any application that might have started it is shut down. You have an active lock.
open your browser,check whether Tomcat homepage is visible by below command.
http://ipaddress:portnumber
also check this
You can adjust the plot margins with plot.margin
in theme()
and then move your axis labels and title with the vjust
argument of element_text()
. For example :
library(ggplot2)
library(grid)
qplot(rnorm(100)) +
ggtitle("Title") +
theme(axis.title.x=element_text(vjust=-2)) +
theme(axis.title.y=element_text(angle=90, vjust=-0.5)) +
theme(plot.title=element_text(size=15, vjust=3)) +
theme(plot.margin = unit(c(1,1,1,1), "cm"))
will give you something like this :
If you want more informations about the different theme()
parameters and their arguments, you can just enter ?theme
at the R prompt.
For importing csv with a header row using mysqlimport, just add
--ignore-lines=N
(ignores the first N lines of the data file)
This option is described in the page you've linked.
We had this same issue. We solved it adding 'length' to entity attribute definition:
@Column(columnDefinition="text", length=10485760)
private String configFileXml = "";