Scenario: Windows 8.1, VS2013 Ultimate, SQL Express Installed and running, SQL Server Browser Disabled. This worked for me:
You can now create a new connection with Server name: (LocalDb)\v11.0 (hit refresh) Connect to a database: Select your new database under the dropdown.
I hope it helps.
In my case it was happening because I had not typed a variable.
So I created the Search interface
export interface Search {
term: string;
...
}
I changed that
searchList = [];
for that and it worked
searchList: Search[];
If you worked the correct way to create your migrations by using the command Add-Migration "Name_Of_Migration"
then you can do the following to get a clean start (reset, with loss of data, of course):
Update-database -TargetMigration:0
Normally your DB is empty now since the down methods were executed.
Update-database
This will recreate your DB to your current migration
THE ANSWER BELOW IS THE GOOD ONE
You aren't using the data method correctly. The correct code to update data is:
$('#foo').data('num', num);
So your example would be:
var num = $('#foo').data("num") + 1;
console.log(num)
$('#foo').data('num', num);
console.log(num)
Instead of "w"
use "a"
(append) mode with open
function:
with open("games.txt", "a") as text_file:
Here is an example of reading and writing a list of objects of type SNStock
that implements NSCoding
- we have an accessor for the entire list, watchlist
, and two methods to add and remove objects, that is addStock(stock: SNStock)
and removeStock(stock: SNStock)
.
import Foundation
class DWWatchlistController {
private let kNSUserDefaultsWatchlistKey: String = "dw_watchlist_key"
private let userDefaults: NSUserDefaults
private(set) var watchlist:[SNStock] {
get {
if let watchlistData : AnyObject = userDefaults.objectForKey(kNSUserDefaultsWatchlistKey) {
if let watchlist : AnyObject = NSKeyedUnarchiver.unarchiveObjectWithData(watchlistData as! NSData) {
return watchlist as! [SNStock]
}
}
return []
}
set(watchlist) {
let watchlistData = NSKeyedArchiver.archivedDataWithRootObject(watchlist)
userDefaults.setObject(watchlistData, forKey: kNSUserDefaultsWatchlistKey)
userDefaults.synchronize()
}
}
init() {
userDefaults = NSUserDefaults.standardUserDefaults()
}
func addStock(stock: SNStock) {
var watchlist = self.watchlist
watchlist.append(stock)
self.watchlist = watchlist
}
func removeStock(stock: SNStock) {
var watchlist = self.watchlist
if let index = find(watchlist, stock) {
watchlist.removeAtIndex(index)
self.watchlist = watchlist
}
}
}
Remember that your object needs to implement NSCoding
or else the encoding won't work. Here is what SNStock
looks like:
import Foundation
class SNStock: NSObject, NSCoding
{
let ticker: NSString
let name: NSString
init(ticker: NSString, name: NSString)
{
self.ticker = ticker
self.name = name
}
//MARK: NSCoding
required init(coder aDecoder: NSCoder) {
self.ticker = aDecoder.decodeObjectForKey("ticker") as! NSString
self.name = aDecoder.decodeObjectForKey("name") as! NSString
}
func encodeWithCoder(aCoder: NSCoder) {
aCoder.encodeObject(ticker, forKey: "ticker")
aCoder.encodeObject(name, forKey: "name")
}
//MARK: NSObjectProtocol
override func isEqual(object: AnyObject?) -> Bool {
if let object = object as? SNStock {
return self.ticker == object.ticker &&
self.name == object.name
} else {
return false
}
}
override var hash: Int {
return ticker.hashValue
}
}
Hope this helps!
Specifications:
Articles:
Tutorial:
Libraries:
There is an excellent tutorial on how to create a library for the Arduino platform. A library is basically a class, so it should show you how its all done.
On Arduino you can use classes, but there are a few restrictions:
You also need to make new files for your classes, you can't just declare them in your main sketch. You also will need to close the Arduino IDE when recompiling a library. That is why I use Eclipse as my Arduino IDE.
try this, tested on windows platform and it works fine :
from selenium import webdriver
browser = webdriver.Chrome('C:\\Users\\yeivic\\Downloads\\chromedriver')
browser.fullscreen_window()
browser.get('http://google.com/')
You can use this:
var newList= JsonConvert.DeserializeObject<List<Book>>(list.toJson());
Java 9 JDK 9.0.4
File | Settings | Build, Execution, Deployment | Compiler | Kotlin Compiler
It all looks ok, your code will be fine, unless you're doing this in a tight loop. I also would consider
double min;
min = (a<b) ? a : b;
min = (min<c) ? min : c;
Use the vectorised str
method replace
:
In [30]:
df['range'] = df['range'].str.replace(',','-')
df
Out[30]:
range
0 (2-30)
1 (50-290)
EDIT
So if we look at what you tried and why it didn't work:
df['range'].replace(',','-',inplace=True)
from the docs we see this desc:
str or regex: str: string exactly matching to_replace will be replaced with value
So because the str values do not match, no replacement occurs, compare with the following:
In [43]:
df = pd.DataFrame({'range':['(2,30)',',']})
df['range'].replace(',','-', inplace=True)
df['range']
Out[43]:
0 (2,30)
1 -
Name: range, dtype: object
here we get an exact match on the second row and the replacement occurs.
for i in range(11):
string = "string{0}".format(i)
What you did (range[1,10]
) is
a[3]
) or a slice (a[3:5]
) of a list, [1,10]
is invalid, and range(1,10)
is [1, 2, 3, 4, 5, 6, 7, 8, 9]
, and you seem to want [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
And string = "string" + i
is a TypeError since you can't add an integer to a string (unlike JavaScript).
Look at the documentation for Python's new string formatting method, it is very powerful.
I tried subtract, but the result was not consistent.
If I run df1.subtract(df2)
, not all lines of df1 are shown on the result dataframe, probably due distinct
cited on the docs.
This solved my problem:
df1.exceptAll(df2)
I have created Delayed component using Hooks and TypeScript
import React, { useState, useEffect } from 'react';
type Props = {
children: React.ReactNode;
waitBeforeShow?: number;
};
const Delayed = ({ children, waitBeforeShow = 500 }: Props) => {
const [isShown, setIsShown] = useState(false);
useEffect(() => {
setTimeout(() => {
setIsShown(true);
}, waitBeforeShow);
}, [waitBeforeShow]);
return isShown ? children : null;
};
export default Delayed;
Just wrap another component into Delayed
export function LoadingScreen = () => {
return (
<Delayed>
<div />
</Delayed>
);
};
Of course, the accepted answer of Arrays.equal( byte[] first, byte[] second ) is correct. I like to work at a lower level, but I was unable to find a low level efficient function to perform equality test ranges. I had to whip up my own, if anyone needs it:
public static boolean ArraysAreEquals(
byte[] first,
int firstOffset,
int firstLength,
byte[] second,
int secondOffset,
int secondLength
) {
if( firstLength != secondLength ) {
return false;
}
for( int index = 0; index < firstLength; ++index ) {
if( first[firstOffset+index] != second[secondOffset+index]) {
return false;
}
}
return true;
}
Dictionary can contain values and values can be added by using update() method. You want your system to create variables, so you should know where to keep.
variables = {}
break_condition= True # Dont forget to add break condition to while loop if you dont want your system to go crazy.
name = “variable”
i = 0
name = name + str(i) #this will be your variable name.
while True:
value = 10 #value to assign
variables.update(
{name:value})
if break_condition == True:
break
Browser technology currently doesn't support downloading a file directly from an Ajax request. The work around is to add a hidden form and submit it behind the scenes to get the browser to trigger the Save dialog.
I'm running a standard Flux implementation so I'm not sure what the exact Redux (Reducer) code should be, but the workflow I just created for a file download goes like this...
FileDownload
. All this component does is render a hidden form and then, inside componentDidMount
, immediately submit the form and call it's onDownloadComplete
prop.Widget
, with a download button/icon (many actually... one for each item in a table). Widget
has corresponding action and store files. Widget
imports FileDownload
.Widget
has two methods related to the download: handleDownload
and handleDownloadComplete
.Widget
store has a property called downloadPath
. It's set to null
by default. When it's value is set to null
, there is no file download in progress and the Widget
component does not render the FileDownload
component.Widget
calls the handleDownload
method which triggers a downloadFile
action. The downloadFile
action does NOT make an Ajax request. It dispatches a DOWNLOAD_FILE
event to the store sending along with it the downloadPath
for the file to download. The store saves the downloadPath
and emits a change event.downloadPath
, Widget
will render FileDownload
passing in the necessary props including downloadPath
as well as the handleDownloadComplete
method as the value for onDownloadComplete
.FileDownload
is rendered and the form is submitted with method="GET"
(POST should work too) and action={downloadPath}
, the server response will now trigger the browser's Save dialog for the target download file (tested in IE 9/10, latest Firefox and Chrome).onDownloadComplete
/handleDownloadComplete
is called. This triggers another action that dispatches a DOWNLOAD_FILE
event. However, this time downloadPath
is set to null
. The store saves the downloadPath
as null
and emits a change event.downloadPath
the FileDownload
component is not rendered in Widget
and the world is a happy place.Widget.js - partial code only
import FileDownload from './FileDownload';
export default class Widget extends Component {
constructor(props) {
super(props);
this.state = widgetStore.getState().toJS();
}
handleDownload(data) {
widgetActions.downloadFile(data);
}
handleDownloadComplete() {
widgetActions.downloadFile();
}
render() {
const downloadPath = this.state.downloadPath;
return (
// button/icon with click bound to this.handleDownload goes here
{downloadPath &&
<FileDownload
actionPath={downloadPath}
onDownloadComplete={this.handleDownloadComplete}
/>
}
);
}
widgetActions.js - partial code only
export function downloadFile(data) {
let downloadPath = null;
if (data) {
downloadPath = `${apiResource}/${data.fileName}`;
}
appDispatcher.dispatch({
actionType: actionTypes.DOWNLOAD_FILE,
downloadPath
});
}
widgetStore.js - partial code only
let store = Map({
downloadPath: null,
isLoading: false,
// other store properties
});
class WidgetStore extends Store {
constructor() {
super();
this.dispatchToken = appDispatcher.register(action => {
switch (action.actionType) {
case actionTypes.DOWNLOAD_FILE:
store = store.merge({
downloadPath: action.downloadPath,
isLoading: !!action.downloadPath
});
this.emitChange();
break;
FileDownload.js
- complete, fully functional code ready for copy and paste
- React 0.14.7 with Babel 6.x ["es2015", "react", "stage-0"]
- form needs to be display: none
which is what the "hidden" className
is for
import React, {Component, PropTypes} from 'react';
import ReactDOM from 'react-dom';
function getFormInputs() {
const {queryParams} = this.props;
if (queryParams === undefined) {
return null;
}
return Object.keys(queryParams).map((name, index) => {
return (
<input
key={index}
name={name}
type="hidden"
value={queryParams[name]}
/>
);
});
}
export default class FileDownload extends Component {
static propTypes = {
actionPath: PropTypes.string.isRequired,
method: PropTypes.string,
onDownloadComplete: PropTypes.func.isRequired,
queryParams: PropTypes.object
};
static defaultProps = {
method: 'GET'
};
componentDidMount() {
ReactDOM.findDOMNode(this).submit();
this.props.onDownloadComplete();
}
render() {
const {actionPath, method} = this.props;
return (
<form
action={actionPath}
className="hidden"
method={method}
>
{getFormInputs.call(this)}
</form>
);
}
}
>>> x = "2342.34"
>>> float(x)
2342.3400000000001
There you go. Use float (which behaves like and has the same precision as a C,C++, or Java double).
Actually, if you don't know if the subfolders have a git repo or not, the best would be to let find
get the repos for you:
find . -type d -name .git -exec git --git-dir={} --work-tree=$PWD/{}/.. pull origin master \;
The PowerShell equivalent would be:
Get-ChildItem -Recurse -Directory -Hidden -Filter .git | ForEach-Object { & git --git-dir="$($_.FullName)" --work-tree="$(Split-Path $_.FullName -Parent)" pull origin master }
I've really fallen in love with Droid Sans Mono.
Under the Tools menu in Visual Studio 2008 (or 2005 if you have the right WCF stuff installed) there is an options called 'WCF Service Configuration Editor'.
From there you can change the binding options for both the client and the services, one of these options will be for time-outs.
There may be 2 spaces after the text, please confirm. You can use LTRIM
and RTRIM
functions also right?
LTRIM(RTRIM(ProductAlternateKey))
Maybe the extra space isn't ordinary spaces (ASCII 32, soft space)? Maybe they are "hard space", ASCII 160?
ltrim(rtrim(replace(ProductAlternateKey, char(160), char(32))))
You can use the dynamic variable ViewBag
ViewBag.AnotherValue = valueToView;
You can use the -i
flag correctly by providing it with a suffix to add to the backed-up file. Extending your example:
sed -i.bu 's/oldword/newword/' file1.txt
Will give you two files: one with the name file1.txt
that contains the substitution, and one with the name file1.txt.bu
that has the original content.
Mildly dangerous
If you want to destructively overwrite the original file, use something like:
sed -i '' 's/oldword/newword/' file1.txt
^ note the space
Because of the way the line gets parsed, a space is required between the option flag and its argument because the argument is zero-length.
Other than possibly trashing your original, I’m not aware of any further dangers of tricking sed this way. It should be noted, however, that if this invocation of sed
is part of a script, The Unix Way™ would (IMHO) be to use sed
non-destructively, test that it exited cleanly, and only then remove the extraneous file.
for Atom Users, Packages ->whitspace -> remove trailing whitespaces
this worked for me
My comments on Renaud Bompuis's answer messed up.
Actually, you can use late binding, and the reference to the 11.0 object library is not required.
The following code will work without any references:
Dim f As Object
Set f = Application.FileDialog(3)
f.AllowMultiSelect = True
f.Show
MsgBox "file choosen = " & f.SelectedItems.Count
Note that the above works well in the runtime also.
You can omit window
and just use location.href
. For example:
location.href = 'http://google.im/';
I find this to be a bit safer and easier to rely on for simple moves that exclude certain files or directories.
ls -1 | grep -v ^$EXCLUDE | xargs -I{} mv {} $TARGET
Use:
import matplotlib.pyplot as plt
plt.gcf().subplots_adjust(bottom=0.15)
to make room for the label.
Edit:
Since i gave the answer, matplotlib
has added the tight_layout()
function.
So i suggest to use it:
plt.tight_layout()
should make room for the xlabel.
Turns out I was doing it wrong, I needed to perform a nested select first of just the important columns, and do a distinct select off that to prevent trash columns of 'unique' data from corrupting my good data. The following appears to have resolved the issue... but I will try on the full dataset later.
SELECT DISTINCT P2.*
FROM (
SELECT
IDNo
, FirstName
, LastName
FROM people P
) P2
Here is some play data as requested: http://sqlfiddle.com/#!3/050e0d/3
CREATE TABLE people
(
[entry] int
, [IDNo] varchar(3)
, [FirstName] varchar(5)
, [LastName] varchar(7)
);
INSERT INTO people
(entry,[IDNo], [FirstName], [LastName])
VALUES
(1,'uqx', 'bob', 'smith'),
(2,'abc', 'john', 'willis'),
(3,'ABC', 'john', 'willis'),
(4,'aBc', 'john', 'willis'),
(5,'WTF', 'jeff', 'bridges'),
(6,'Sss', 'bill', 'doe'),
(7,'sSs', 'bill', 'doe'),
(8,'ssS', 'bill', 'doe'),
(9,'ere', 'sally', 'abby'),
(10,'wtf', 'jeff', 'bridges')
;
Using numpy (highly recommended), you would do:
from numpy import (array, dot, arccos, clip)
from numpy.linalg import norm
u = array([1.,2,3,4])
v = ...
c = dot(u,v)/norm(u)/norm(v) # -> cosine of the angle
angle = arccos(clip(c, -1, 1)) # if you really want the angle
Simply take a variable x=arr[0]
and do xor operation by traversing the rest of the elements . If an element has repeated then the x will become zero.
This way we know that the element has repeated previously . This also will just take o(n)
to scan through all of the elements in the original array.
All the previous answers are correct. Following is the little deep dive into the problem and solution.
The driver constructor in Selenium for example
WebDriver driver = new ChromeDriver();
searches for the driver executable, in this case the Google Chrome driver searches for a Chrome driver executable. In case the service is unable to find the executable, the exception is thrown.
This is where the exception comes from (note the check state method)
/**
*
* @param exeName Name of the executable file to look for in PATH
* @param exeProperty Name of a system property that specifies the path to the executable file
* @param exeDocs The link to the driver documentation page
* @param exeDownload The link to the driver download page
*
* @return The driver executable as a {@link File} object
* @throws IllegalStateException If the executable not found or cannot be executed
*/
protected static File findExecutable(
String exeName,
String exeProperty,
String exeDocs,
String exeDownload) {
String defaultPath = new ExecutableFinder().find(exeName);
String exePath = System.getProperty(exeProperty, defaultPath);
checkState(exePath != null,
"The path to the driver executable must be set by the %s system property;"
+ " for more information, see %s. "
+ "The latest version can be downloaded from %s",
exeProperty, exeDocs, exeDownload);
File exe = new File(exePath);
checkExecutable(exe);
return exe;
}
The following is the check state method which throws the exception:
/**
* Ensures the truth of an expression involving the state of the calling instance, but not
* involving any parameters to the calling method.
*
* <p>See {@link #checkState(boolean, String, Object...)} for details.
*/
public static void checkState(
boolean b,
@Nullable String errorMessageTemplate,
@Nullable Object p1,
@Nullable Object p2,
@Nullable Object p3) {
if (!b) {
throw new IllegalStateException(format(errorMessageTemplate, p1, p2, p3));
}
}
SOLUTION: set the system property before creating driver object as follows.
System.setProperty("webdriver.gecko.driver", "path/to/chromedriver.exe");
WebDriver driver = new ChromeDriver();
The following is the code snippet (for Chrome and Firefox) where the driver service searches for the driver executable:
Chrome:
@Override
protected File findDefaultExecutable() {
return findExecutable("chromedriver", CHROME_DRIVER_EXE_PROPERTY,
"https://github.com/SeleniumHQ/selenium/wiki/ChromeDriver",
"http://chromedriver.storage.googleapis.com/index.html");
}
Firefox:
@Override
protected File findDefaultExecutable() {
return findExecutable(
"geckodriver", GECKO_DRIVER_EXE_PROPERTY,
"https://github.com/mozilla/geckodriver",
"https://github.com/mozilla/geckodriver/releases");
}
where CHROME_DRIVER_EXE_PROPERTY = "webdriver.chrome.driver" and GECKO_DRIVER_EXE_PROPERTY = "webdriver.gecko.driver"
Similar is the case for other browsers, and the following is the snapshot of the list of the available browser implementation:
This might be your script-free solution: http://davidwalsh.name/css-transform-rotate
It's supported in all browsers prefixed and, in IE10-11 and all still-used Firefox versions, unprefixed.
That means that if you don't care for old IEs (the bane of web designers) you can skip the -ms-
and -moz-
prefixes to economize space.
However, the Webkit browsers (Chrome, Safari, most mobile navigators) still need -webkit-
, and there's a still-big cult following of pre-Next Opera and using -o-
is sensate.
You mean you want to show a javascript alert when a button is clicked on a PHP generated page?
echo('<button type="button" onclick="alert(\'Alrt Text!\');">My Button</button>');
Would do that
I used convert -resize 16x16 img.png favicon.ico
(on linux konsole) to convert my image, and
add <link rel="icon" href="images/favicon.ico" type="image/png" sizes="16x16">
to my header and everything work perfect.
Just like normal background-color: #f0f
You just need a way to target it, eg: <option id="myPinkOption">blah</option>
On Android API >=23 you can do somehting like this to remove a group of notifications.
for (StatusBarNotification statusBarNotification : mNotificationManager.getActiveNotifications()) {
if (KEY_MESSAGE_GROUP.equals(statusBarNotification.getGroupKey())) {
mNotificationManager.cancel(statusBarNotification.getId());
}
}
Yow can change the DropDownStyle in properties to DropDownList. This will not show the TextBox for filter.
(Screenshot provided by FUSION CHA0S.)
I found JXDatePicker as a better solution to this. It gives what you need and very easy to use.
import java.text.SimpleDateFormat; import java.util.Calendar; import javax.swing.JFrame; import javax.swing.JPanel; import org.jdesktop.swingx.JXDatePicker; public class DatePickerExample extends JPanel { public static void main(String[] args) { JFrame frame = new JFrame("JXPicker Example"); JPanel panel = new JPanel(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setBounds(400, 400, 250, 100); JXDatePicker picker = new JXDatePicker(); picker.setDate(Calendar.getInstance().getTime()); picker.setFormats(new SimpleDateFormat("dd.MM.yyyy")); panel.add(picker); frame.getContentPane().add(panel); frame.setVisible(true); } }
Depending on what browsers/devices you are looking to support, or what you are prepared to put up with for non-compliant browsers you may want to check out the <summary>
and <detail>
tags. They are for exactly this purpose. No css is required at all as the collapsing and showing are part of the tags definition/formatting.
I've made an example here:
<details>
<summary>This is what you want to show before expanding</summary>
<p>This is where you put the details that are shown once expanded</p>
</details>
Browser support varies. Try in webkit for best results. Other browsers may default to showing all the solutions. You can perhaps fallback to the hide/show method described above.
Here is a really simple solution using SASS/SCSS and a math formula style:
/* frame circle */
.container {
position: relative;
border-radius: 50%;
background-color: white;
overflow: hidden;
width: 400px;
height: 400px; }
/* circle sectors */
.menu-frame-sector {
position: absolute;
width: 50%;
height: 50%;
z-index: 10000;
transform-origin: 100% 100%;
}
$sector_count: 8;
$sector_width: 360deg / $sector_count;
.sec0 {
transform: rotate(0 * $sector_width) skew($sector_width);
background-color: red; }
.sec1 {
transform: rotate(1 * $sector_width) skew($sector_width);
background-color: blue; }
.sec2 {
transform: rotate(2 * $sector_width) skew($sector_width);
background-color: red; }
.sec3 {
transform: rotate(3 * $sector_width) skew($sector_width);
background-color: blue; }
.sec4 {
transform: rotate(4 * $sector_width) skew($sector_width);
background-color: red; }
.sec5 {
transform: rotate(5 * $sector_width) skew($sector_width);
background-color: blue; }
.sec6 {
transform: rotate(6 * $sector_width) skew($sector_width);
background-color: red; }
.sec7 {
transform: rotate(7 * $sector_width) skew($sector_width);
background-color: blue; }
To conclude, I strongly suggest you to understand transform-origin
, rotate()
and skew()
:
https://tympanus.net/codrops/2013/08/09/building-a-circular-navigation-with-css-transforms/
To expand upon Mr. Eels comment, you can do it like this:
File file = new File("C:\\A.txt");
FileWriter writer;
try {
writer = new FileWriter(file, true);
PrintWriter printer = new PrintWriter(writer);
printer.append("Sue");
printer.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Don't say we ain't good to ya!
I was working around with my shell script which need to do some path joining stuff like you do.
The thing is, both path like
/data/foo/bar
/data/foo/bar/
are valid.
If I want to append a file to this path like
/data/foo/bar/myfile
there was no native method (like os.path.join() in python) in shell to handle such situation.
But I did found a trick
For example , the base path was store in a shell variable
BASE=~/mydir
and the last file name you wanna join was
FILE=myfile
Then you can assign your new path like this
NEW_PATH=$(realpath ${BASE})/FILE
and then you`ll get
$ echo $NEW_PATH
/path/to/your/home/mydir/myfile
the reason is quiet simple, the "realpath" command would always trim the terminating slash for you if necessary
You can use the AddOrUpdate
method:
db.Books.AddOrUpdate(book); //requires using System.Data.Entity.Migrations;
db.SaveChanges();
Use this:
if(typeof(String.prototype.trim) === "undefined")
{
String.prototype.trim = function()
{
return String(this).replace(/^\s+|\s+$/g, '');
};
}
The trim function will now be available as a first-class function on your strings. For example:
" dog".trim() === "dog" //true
EDIT: Took J-P's suggestion to combine the regex patterns into one. Also added the global modifier per Christoph's suggestion.
Took Matthew Crumley's idea about sniffing on the trim function prior to recreating it. This is done in case the version of JavaScript used on the client is more recent and therefore has its own, native trim function.
As mentioned in documentation:
Android Studio automatically adds this attribute when you click Run
So, to be able to install your apk with adb install <path to apk file>
you need to assemble build from terminal: ./gradlew assembleDebug
and install with adb. Or just run ./gradlew installDebug
to build and install on the device simultaneously.
Format MySQL datetime with PHP
$date = "'".date('Y-m-d H:i:s', strtotime(str_replace('-', '/', $_POST['date'])))."'";
if(data.trim()==''){alert("Nothing Found");}
i also had this problem and didnt wanted to use deprecated solution so i ended up with:
in parrent
<dynamic-table
ContainerCustomStyle='width: 400px;'
>
</dynamic-Table>
child component
@Input() ContainerCustomStyle: string;
in child in html div
<div class="container mat-elevation-z8"
[style]='GetStyle(ContainerCustomStyle)' >
and in code
constructor(private sanitizer: DomSanitizer) { }
GetStyle(c) {
if (isNullOrUndefined(c)) { return null; }
return this.sanitizer.bypassSecurityTrustStyle(c);
}
works like expected and should not be deprecated ;)
If it matters whether the file you're looking for is a directory and not just a file, you could use File.directory?
or Dir.exist?
. This will return true only if the file exists and is a directory.
As an aside, a more idiomatic way to write the method would be to take advantage of the fact that Ruby automatically returns the result of the last expression inside the method. Thus, you could write it like this:
def directory_exists?(directory)
File.directory?(directory)
end
Note that using a method is not necessary in the present case.
There are several libraries available solving this problem, but the simplest is probably to use Boost Tokenizer:
#include <iostream>
#include <string>
#include <boost/tokenizer.hpp>
#include <boost/foreach.hpp>
typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
std::string str("denmark;sweden;india;us");
boost::char_separator<char> sep(";");
tokenizer tokens(str, sep);
BOOST_FOREACH(std::string const& token, tokens)
{
std::cout << "<" << *tok_iter << "> " << "\n";
}
I tried all the most popular solutions before and no one worked for me, until I realised that the Android SDK folder must not have any spaces, so I changed it from "C:\Android SDK" to "C:\Android_SDK". As simple as that.
On wildfly 8 and later, go to /bin/standalone.conf
and put your JAVA_OPTS there, with all you need.
Easiest route is probably upgrading or re-installing the Java Runtime Environment (JRE).
Or this:
C:\Program Files\Java\j2re1.4.2_04\bin\javaw.exe" -jar "%1" %
(Note: the part starting with 'javaw' must be exactly like that; the other part of the path name can vary depending on which version of Java you're using) then press the OK buttons until all the dialogs are closed.Which was stolen from here: http://windowstipoftheday.blogspot.com/2005/10/setting-jar-file-association.html
This function will return you the date and time in the following format: YYYY:MM:DD:HH:MM:SS
. It also works in Node.js.
function getDateTime() {
var date = new Date();
var hour = date.getHours();
hour = (hour < 10 ? "0" : "") + hour;
var min = date.getMinutes();
min = (min < 10 ? "0" : "") + min;
var sec = date.getSeconds();
sec = (sec < 10 ? "0" : "") + sec;
var year = date.getFullYear();
var month = date.getMonth() + 1;
month = (month < 10 ? "0" : "") + month;
var day = date.getDate();
day = (day < 10 ? "0" : "") + day;
return year + ":" + month + ":" + day + ":" + hour + ":" + min + ":" + sec;
}
Above answers clearly answer the question but I want to provide another alternative - A different view/approach to solve the similar problem.
You can also use browser extension to remove X-Content-Type-Options
response header for raw.githubusercontent.com
files. There are couple of browser extensions to modify response headers.
If you use Requestly, I can suggest two solutions
Remove
-> Response
-> X-Content-Type-Options
Url
-> Contains
-> raw.githubusercontent.com
raw.githubusercontent.com
with rawgit.com
Check this screenshot for more details
We created a simple JS Fiddle to test out if we can use raw github files as scripts in our code. Here is the Fiddle with the following code
<center id="msg"></center>
<script src="https://raw.githubusercontent.com/sachinjain024/practicebook/master/web-extensions-master/storage/background.js"></script>
<script>
try {
if (typeof BG.Methods !== 'undefoned') {
document.getElementById('msg').innerHTML = 'Script evaluated successfully!';
}
} catch (e) {
document.getElementById('msg').innerHTML = 'Problem evaluating script';
}
</script>
If you see Script evaluated successfully!
, It means you are able to use raw github file in your code
Otherwise Problem evaluating script
indicates that there is some problem while executing script from raw github source.
I also wrote an article on Requestly blog about this. Please refer it for more details.
Hope it helps!!
Disclaimer: I am author of Requestly So you can blame for anything you don't like.
git clone --depth 1 --branch <tag_name> <repo_url>
Example
git clone --depth 1 --branch 0.37.2 https://github.com/apache/incubator-superset.git
<tag_name> : 0.37.2
<repo_url> : https://github.com/apache/incubator-superset.git
(Copied from this question)
In cases where I have not had control over the incoming JSON (and so cannot ensure that it includes a $type property) I have written a custom converter that just allows you to explicitly specify the concrete type:
public class Model
{
[JsonConverter(typeof(ConcreteTypeConverter<Something>))]
public ISomething TheThing { get; set; }
}
This just uses the default serializer implementation from Json.Net whilst explicitly specifying the concrete type.
An overview are available on this blog post. Source code is below:
public class ConcreteTypeConverter<TConcrete> : JsonConverter
{
public override bool CanConvert(Type objectType)
{
//assume we can convert to anything for now
return true;
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
//explicitly specify the concrete type we want to create
return serializer.Deserialize<TConcrete>(reader);
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
//use the default serialization - it works fine
serializer.Serialize(writer, value);
}
}
I'm assuming that you want to be able to view data present in your container everytime you connect to it from outside. To do this, you will have to persist data on the postgres image.
If you dont have persistant data, you will have to repeat everything you did the first time.
Steps 3, 5, 6, 7, and 8 answer your question directly.
Here is the detailed overview of the entire process I followed on Windows 10 powershell (commands are the same in Linux and macOS as well):
Step 1: Start powershell in non-admin mode
Step 2: Download postgres docker image:
docker pull postgres:latest
Step 3: Start docker container in detached mode and persist data on postgres image by creating a volume and binding it to a destination
(Note: by default 5432 is the default port that is used; but state it explicitly to prevent connection errors from clients like pgadmin, dbeaver, etc.)
docker run --name postgres-test -e POSTGRES_PASSWORD=password -p 5432:5432 -v postgres-data:/var/lib/postgresql/data -d postgres:latest
Step 4: Check status of running containers
docker ps -a
Step 5: Go inside container_name in interactive mode
(Note: commands like ls, pwd, etc. can be executed here if you've checked linux containers during installation)
docker exec -it postgres-test psql -U postgres
Step 6: Create sample data. At this point, you can play with psql
commands in the following manner:
# CREATE DATABASE test;
# \c test
# CREATE TABLE test_table(something int);
# INSERT INTO test_table VALUES (123);
# SELECT * FROM test_table;
# \q
Step 7: Open a database client application like pgadmin
or dbeaver
and enter the below in the connection fields:
Host: localhost
Database: test
User: postgres
Password: password
Step 8: Enter the query select * from test_table
in the query editor and you should be able to see the output 123
At the moment (Chrome 39) I use this code to open a new tab:
window.open('http://www.stackoverflow.com', '_blank', 'toolbar=yes, location=yes, status=yes, menubar=yes, scrollbars=yes');
_x000D_
Of course this may change in future versions of Chrome.
It is a bad idea to use this if you can't control the browser your users are using. It may not work in future versions or with different settings.
You need Set with objects:
Set rng = Sheet8.Range("A12")
Sheet8 is fine.
Sheet1.[a1]
When looking for the max performance you run into a lot of issue and potential bottlenecks. Running a simple hello world test is not necessarily going to find them all.
Possible limitations include:
/proc/sys/net
for lots of kernel tuning..ulimit
as others have stated heretop
to see if your CPU is maxed>>> command = "echo a; echo b"
>>> shlex.split(command);
['echo', 'a; echo', 'b']
so, the problem is shlex module do not handle ";"
After using git for a long time without problems, I encountered this problem today. After some reflection, I realized I changed my umask
earlier today from 022
to something else.
All the answers by other people are helpful, i.e., do chmod
for the offending directories. But the root cause is my new umask
which will always cause a new problem down the road whenever a new directory is created under .git/object/
. So, the long term solution for me is to change umask
back to 022
.
cmd.exe is located in different locations in different versions of Windows. To avoid needing the location of cmd.exe, you can use the command moogs wrote without calling "cmd.exe /C".
Here's an example that worked for me:
So the final step will look something like this in Command Prompt:
C:\Projects\MyProject\bin\Debug>runas /user:domain\username Application.exe
Note: the domain name was required in my situation.
It's currently true that "when you upload a file the browser will only send the source filename and not the full path" - it makes perfect sense that the server has no business knowing whether the file was in "C:\WINDOWS\" or "F:\SOMEDIR\OTHERDIR\PERSONALINFO\". The filename is always sent, and is useful both to help the user 'recognise' the content and possibly to interrogate the file extension to help determine the file type.
However I know from experience that Internet Explorer definitely used to (in older versions) send the entire path. It's difficult to find an authoritative confirmation (except this apache fileupload control doco)
Internet Explorer provides the entire path to the uploaded file and not just the base file name
Regardless, you should not use nor expect the full path to be sent by any 'modern' browser.
You can define the label for each activity in your manifest file.
A normal definition of a activity looks like this:
<activity
android:name=".ui.myactivity"
android:label="@string/Title Text" />
Where title text should be replaced by the id of a string resource for this activity.
You can also set the title text from code if you want to set it dynamically.
setTitle(address.getCity());
with this line the title is set to the city of a specific adress in the oncreate method of my activity.
I think you are confused about how the compiler puts things together. When you use -c
flag, i.e. no linking is done, the input is C++ code, and the output is object code. The .o
files thus don't mix with -c
, and compiler warns you about that. Symbols from object file are not moved to other object files like that.
All object files should be on the final linker invocation, which is not the case here, so linker (called via g++
front-end) complains about missing symbols.
Here's a small example (calling g++
explicitly for clarity):
PROG ?= myprog
OBJS = worker.o main.o
all: $(PROG)
.cpp.o:
g++ -Wall -pedantic -ggdb -O2 -c -o $@ $<
$(PROG): $(OBJS)
g++ -Wall -pedantic -ggdb -O2 -o $@ $(OBJS)
There's also makedepend
utility that comes with X11 - helps a lot with source code dependencies. You might also want to look at the -M
gcc
option for building make
rules.
Per the TypeScript 2.3 release notes on "New --downlevelIteration
":
for..of statements
, Array Destructuring, and Spread elements in Array, Call, and New expressions support Symbol.iterator in ES5/E3 if available when using--downlevelIteration
This is not enabled by default! Add "downlevelIteration": true
to your tsconfig.json
, or pass --downlevelIteration
flag to tsc
, to get full iterator support.
With this in place, you can write for (let keyval of myMap) {...}
and keyval
's type will be automatically inferred.
Why is this turned off by default? According to TypeScript contributor @aluanhaddad,
It is optional because it has a very significant impact on the size of generated code, and potentially on performance, for all uses of iterables (including arrays).
If you can target ES2015 ("target": "es2015"
in tsconfig.json
or tsc --target ES2015
) or later, enabling downlevelIteration
is a no-brainer, but if you're targeting ES5/ES3, you might benchmark to ensure iterator support doesn't impact performance (if it does, you might be better off with Array.from
conversion or forEach
or some other workaround).
The easiest and fastest way would be with phpmyadmin structure table.
There it's in Russian language but in English Version should be the same. Just click Unique button. Also from there you can make your columns PRIMARY or DELETE.
$string = 'this is my world, not my world';
$find = 'world';
$replace = 'farm';
$result = preg_replace("/$find/",$replace,$string,1);
echo $result;
Must it be an Eclipse plug-in? I use doxygen, just supply your code folder, it handles the rest.
None of the Pythonic solutions worked for me.
It turned out that proc.stdout.read()
or similar may block forever.
Therefore, I use tee
like this:
subprocess.run('./my_long_running_binary 2>&1 | tee -a my_log_file.txt && exit ${PIPESTATUS}', shell=True, check=True, executable='/bin/bash')
This solution is convenient if you are already using shell=True
.
${PIPESTATUS}
captures the success status of the entire command chain (only available in Bash).
If I omitted the && exit ${PIPESTATUS}
, then this would always return zero since tee
never fails.
unbuffer
might be necessary for printing each line immediately into the terminal, instead of waiting way too long until the "pipe buffer" gets filled.
However, unbuffer swallows the exit status of assert (SIG Abort)...
2>&1
also logs stderror to the file.
On my Mac the default setting is is ALT+CMD+Down
You can change/view all key bindings by going Eclipse -> Preferences (shortcut CMD+,) and then General -> Keys
In my case, I copied the curl command from Confluence to TextEdit. After spending almost an hour, and trying to paste the command in different text editors in order to sanitize, finally, PyCharm helped me (IntelliJ should help too)
After pasting it in PyCharm I got to see the error
After removing these "NBSP" (non-breaking spaces), the command started running fine.
As of September 2016
Firefox 48.0
and selenium==2.53.6
work fine without any errors
To upgrade firefox on Ubuntu 14.04
only
sudo apt-get update
sudo apt-get upgrade firefox
You can do this using generic SQL with group by
:
SELECT C.Content_ID, C.Content_Title, MAX(M.Media_Id)
FROM tbl_Contents C LEFT JOIN
tbl_Media M
ON M.Content_Id = C.Content_Id
GROUP BY C.Content_ID, C.Content_Title
ORDER BY MAX(C.Content_DatePublished) ASC;
Or with a correlated subquery:
SELECT C.Content_ID, C.Contt_Title,
(SELECT M.Media_Id
FROM tbl_Media M
WHERE M.Content_Id = C.Content_Id
ORDER BY M.MEDIA_ID DESC
LIMIT 1
) as Media_Id
FROM tbl_Contents C
ORDER BY C.Content_DatePublished ASC;
Of course, the syntax for limit 1
varies between databases. Could be top
. Or rownum = 1
. Or fetch first 1 rows
. Or something like that.
I made helper functions that were transferred from the below link into swift:
How can we programmatically detect which iOS version is device running on?
func SYSTEM_VERSION_EQUAL_TO(version: String) -> Bool {
return UIDevice.currentDevice().systemVersion.compare(version,
options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedSame
}
func SYSTEM_VERSION_GREATER_THAN(version: String) -> Bool {
return UIDevice.currentDevice().systemVersion.compare(version,
options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedDescending
}
func SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(version: String) -> Bool {
return UIDevice.currentDevice().systemVersion.compare(version,
options: NSStringCompareOptions.NumericSearch) != NSComparisonResult.OrderedAscending
}
func SYSTEM_VERSION_LESS_THAN(version: String) -> Bool {
return UIDevice.currentDevice().systemVersion.compare(version,
options: NSStringCompareOptions.NumericSearch) == NSComparisonResult.OrderedAscending
}
func SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(version: String) -> Bool {
return UIDevice.currentDevice().systemVersion.compare(version,
options: NSStringCompareOptions.NumericSearch) != NSComparisonResult.OrderedDescending
}
It can be used like so:
SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO("7.0")
func SYSTEM_VERSION_EQUAL_TO(version: String) -> Bool {
return UIDevice.current.systemVersion.compare(version, options: .numeric) == .orderedSame
}
func SYSTEM_VERSION_GREATER_THAN(version: String) -> Bool {
return UIDevice.current.systemVersion.compare(version, options: .numeric) == .orderedDescending
}
func SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(version: String) -> Bool {
return UIDevice.current.systemVersion.compare(version, options: .numeric) != .orderedAscending
}
func SYSTEM_VERSION_LESS_THAN(version: String) -> Bool {
return UIDevice.current.systemVersion.compare(version, options: .numeric) == .orderedAscending
}
func SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(version: String) -> Bool {
return UIDevice.current.systemVersion.compare(version, options: .numeric) != .orderedDescending
}
function functABC(){
// returns a promise that can be used later.
return $.ajax({
url: 'myPage.php',
data: {id: id}
});
}
functABC().then( response =>
console.log(response);
);
Nice read e.g. here.
This is not "synchronous" really, but I think it achieves what the OP intends.
async
option has since been deprecated):All Ajax calls can be done either asynchronously (with a callback function, this would be the function specified after the 'success' key) or synchronously - effectively blocking and waiting for the servers answer. To get a synchronous execution you have to specify
async: false
like described here
Note, however, that in most cases asynchronous execution (via callback on success) is just fine.
I retried an image from a URL and stored on my SD-card using the following code:
public String Downloadfromurl(String Url)
{
String filepath=null;
try {
URL url = new URL(Url);
//create the new connection
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
//set up some things on the connection
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
//and connect!
urlConnection.connect();
//set the path where we want to save the file
//in this case, going to save it on the root directory of the
//sd card.
folder = new File(Environment.getExternalStorageDirectory().toString()+"/img");
folder.mkdirs();
//create a new file, specifying the path, and the filename
//which we want to save the file as.
String filename= "page"+no+".PNG";
file = new File(folder,filename);
if(file.createNewFile())
{
file.createNewFile();
}
//this will be used to write the downloaded data into the file we created
FileOutputStream fileOutput = new FileOutputStream(file);
//this will be used in reading the data from the internet
InputStream inputStream = urlConnection.getInputStream();
//this is the total size of the file
int totalSize = urlConnection.getContentLength();
//variable to store total downloaded bytes
int downloadedSize = 0;
//create a buffer...
byte[] buffer = new byte[1024];
int bufferLength = 0; //used to store a temporary size of the buffer
//now, read through the input buffer and write the contents to the file
while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
//add the data in the buffer to the file in the file output stream (the file on the sd card
fileOutput.write(buffer, 0, bufferLength);
//add up the size so we know how much is downloaded
downloadedSize += bufferLength;
//this is where you would do something to report the prgress, like this maybe
Log.i("Progress:","downloadedSize:"+downloadedSize+"totalSize:"+ totalSize) ;
}
//close the output stream when done
fileOutput.close();
if(downloadedSize==totalSize)
filepath=file.getPath();
//catch some possible errors...
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
filepath=null;
e.printStackTrace();
}
Log.i("filepath:"," "+filepath) ;
return filepath;
}
A DataFrame is equivalent to a table in RDBMS and can also be manipulated in similar ways to the "native" distributed collections in RDDs. Unlike RDDs, Dataframes keep track of the schema and support various relational operations that lead to more optimized execution. Each DataFrame object represents a logical plan but because of their "lazy" nature no execution occurs until the user calls a specific "output operation".
You will have to define the functions inside your header file.
You cannot separate definition of template functions in to the source file and declarations in to header file.
When a template is used in a way that triggers its intstantation, a compiler needs to see that particular templates definition. This is the reason templates are often defined in the header file in which they are declared.
Reference:
C++03 standard, § 14.7.2.4:
The definition of a non-exported function template, a non-exported member function template, or a non-exported member function or static data member of a class template shall be present in every translation unit in which it is explicitly instantiated.
EDIT:
To clarify the discussion on the comments:
Technically, there are three ways to get around this linking problem:
.cpp
file. #include
the .cpp
file defining the template at the .cpp
file using the template. Each of them have their pros and cons,
Moving the defintions to header files may increase the code size(modern day compilers can avoid this) but will increase the compilation time for sure.
Using the explicit instantiation approach is moving back on to traditional macro like approach.Another disadvantage is that it is necessary to know which template types are needed by the program. For a simple program this is easy but for complicated program this becomes difficult to determine in advance.
While including cpp files is confusing at the same time shares the problems of both above approaches.
I find first method the easiest to follow and implement and hence advocte using it.
With right combination of $lookup, $project and $match, you can join mutiple tables on multiple parameters. This is because they can be chained multiple times.
Suppose we want to do following (reference)
SELECT S.* FROM LeftTable S
LEFT JOIN RightTable R ON S.ID =R.ID AND S.MID =R.MID WHERE R.TIM >0 AND
S.MOB IS NOT NULL
Step 1: Link all tables
you can $lookup as many tables as you want.
$lookup - one for each table in query
$unwind - because data is denormalised correctly, else wrapped in arrays
Python code..
db.LeftTable.aggregate([
# connect all tables
{"$lookup": {
"from": "RightTable",
"localField": "ID",
"foreignField": "ID",
"as": "R"
}},
{"$unwind": "R"}
])
Step 2: Define all conditionals
$project : define all conditional statements here, plus all the variables you'd like to select.
Python Code..
db.LeftTable.aggregate([
# connect all tables
{"$lookup": {
"from": "RightTable",
"localField": "ID",
"foreignField": "ID",
"as": "R"
}},
{"$unwind": "R"},
# define conditionals + variables
{"$project": {
"midEq": {"$eq": ["$MID", "$R.MID"]},
"ID": 1, "MOB": 1, "MID": 1
}}
])
Step 3: Join all the conditionals
$match - join all conditions using OR or AND etc. There can be multiples of these.
$project: undefine all conditionals
Python Code..
db.LeftTable.aggregate([
# connect all tables
{"$lookup": {
"from": "RightTable",
"localField": "ID",
"foreignField": "ID",
"as": "R"
}},
{"$unwind": "$R"},
# define conditionals + variables
{"$project": {
"midEq": {"$eq": ["$MID", "$R.MID"]},
"ID": 1, "MOB": 1, "MID": 1
}},
# join all conditionals
{"$match": {
"$and": [
{"R.TIM": {"$gt": 0}},
{"MOB": {"$exists": True}},
{"midEq": {"$eq": True}}
]}},
# undefine conditionals
{"$project": {
"midEq": 0
}}
])
Pretty much any combination of tables, conditionals and joins can be done in this manner.
It is pretty obvious that array[10] is faster than array.get(10), as the later internally does the same call, but adds the overhead for the function call plus additional checks.
Modern JITs however will optimize this to a degree, that you rarely have to worry about this, unless you have a very performance critical application and this has been measured to be your bottleneck.
Below snippet is sufficient to understand how I encountered the same issue but in a different scenario and how I solved it using the guidance in the accepted answer. In my case I was trying to log the keys of object present in the 0th index of the 'defaultViewData' array using Object.keys() method.
defaultViewData = [{"name": "DEFAULT_VIEW_PLP","value": {"MSH25": "LIST"}}]
console.log('DEFAULT_VIEW', Object.keys(this.props.defaultViewData[0]));
The console.log was not getting printed and I was getting the same error as posted in this question. To prevent that error I added below condition
if(this.props.defaultViewData[0]) {
console.log('DEFAULT_VIEW', Object.keys(this.props.defaultViewData[0]));
}
Adding this check ensured that I didn't get this error. I hope this helps for someone.
Note: This is React.js code. (although to understand the problem it doesn't matter).
for..in
and for..of
:Both for..in
and for..of
are looping constructs which are used to iterate over data structures. The only difference between them is the entities
they iterate over:
for..in
iterates over all enumerable property keys of an objectfor..of
iterates over the values of an iterable object. Examples of iterable objects are arrays, strings, and NodeLists.let arr = ['el1', 'el2', 'el3'];
arr.addedProp = 'arrProp';
// elKey are the property keys
for (let elKey in arr) {
console.log(elKey);
}
// elValue are the property values
for (let elValue of arr) {
console.log(elValue)
}
_x000D_
In this example we can observe that the for..in
loop iterates over the keys of the object, which is an array object in this example. The keys are 0, 1, 2 (which correspond to the array elements) and addedProp
. This is how the arr
array object looks in chrome devtools:
You see that our for..in
loop does nothing more than simply iterating over these keys.
The for..of
loop in our example iterates over the values of a data structure. The values in this specific example are 'el1', 'el2', 'el3'
. The values which an iterable data structure will return using for..of
is dependent on the type of iterable object. For example an array will return the values of all the array elements whereas a string returns every individual character of the string.
@robert-hurst has a cleaner approach.
However, this solution may also be used, in places when you actually want to have a copy of Data Url after copying. For example, when you are building a website that uses lots of image/canvas operations.
// select canvas elements
var sourceCanvas = document.getElementById("some-unique-id");
var destCanvas = document.getElementsByClassName("some-class-selector")[0];
//copy canvas by DataUrl
var sourceImageData = sourceCanvas.toDataURL("image/png");
var destCanvasContext = destCanvas.getContext('2d');
var destinationImage = new Image;
destinationImage.onload = function(){
destCanvasContext.drawImage(destinationImage,0,0);
};
destinationImage.src = sourceImageData;
Set the resize property to both. Then you can change width and height like this:
.classname img{
resize: both;
width:50px;
height:25px;
}
function createNumberArray(lowEnd, highEnd) {
var start = lowEnd;
var array = [start];
while (start < highEnd) {
array.push(start);
start++;
}
}
yup.. here's my code:
<style>
.circle{
width: 100px;
height: 100px;
border-radius: 50%;
background-color: blue
}
</style>
<div class="circle">
</div>
Another reason why you might get errors like "relation already exists" is if the DROP
command did not execute correctly.
One reason this can happen is if there are other sessions connected to the database which you need to close first.
There is nothing special about <input type="hidden">
:
$('input[type="hidden"]').val()
Simply get a count of the record(s) you're looking for. If count > 0 then record(s) exist.
DECLARE rec_count NUMBER := 0; BEGIN select count(*) into rec_count from EMPLOYEETABLE WHERE employee_id = inEMPLOYEE_ID AND department_nbr = inDEPARTMENT_NBR; if rec_count > 0 then {UPDATE EMPLOYEETABLE} else {INSERT INTO EMPLOYEETABLE} end if; END;
Here's a solution for find/replace in all files of a given directory. Basically I took the answer provided by sepp2k and expanded it.
# First set the files to search/replace in
files = Dir.glob("/PATH/*")
# Then set the variables for find/replace
@original_string_or_regex = /REGEX/
@replacement_string = "STRING"
files.each do |file_name|
text = File.read(file_name)
replace = text.gsub!(@original_string_or_regex, @replacement_string)
File.open(file_name, "w") { |file| file.puts replace }
end
Cookies are not for authentication. Why reinvent a wheel? HTTP has well-designed authentication mechanisms. If we use cookies, we fall into using HTTP as a transport protocol only, thus we need to create our own signaling system, for example, to tell users that they supplied wrong authentication (using HTTP 401 would be incorrect as we probably wouldn't supply Www-Authenticate
to a client, as HTTP specs require :) ). It should also be noted that Set-Cookie
is only a recommendation for client. Its contents may be or may not be saved (for example, if cookies are disabled), while Authorization
header is sent automatically on every request.
Another point is that, to obtain an authorization cookie, you'll probably want to supply your credentials somewhere first? If so, then wouldn't it be RESTless? Simple example:
GET /a
without cookiePOST /auth
Set-Cookie
GET /a
with cookie. But does GET /a
behave idempotently in this case?To sum this up, I believe that if we access some resource and we need to authenticate, then we must authenticate on that same resource, not anywhere else.
Deleting derived data saved it for me
For reference purpose, for anyone searching how to change the path via code, I am quoting a useful post by a Delphi programmer from this web page: http://www.tek-tips.com/viewthread.cfm?qid=686382
TonHu (Programmer) 22 Oct 03 17:57 I found where I read the original posting, it's here: http://news.jrsoftware.org/news/innosetup.isx/msg02129....
The excerpt of what you would need is this:
You must specify the string "Environment" in LParam. In Delphi you'd do it this way:
SendMessage(HWND_BROADCAST, WM_SETTINGCHANGE, 0, Integer(PChar('Environment')));
It was suggested by Jordan Russell, http://www.jrsoftware.org, the author of (a.o.) InnoSetup, ("Inno Setup is a free installer for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability.") (I just would like more people to use InnoSetup )
HTH
One can have separate application properties files according to the environment, if Spring Boot application is being created. For example - properties file for dev environment, application-dev.properties:
spring.hivedatasource.url=<hive dev data source url>
spring.hivedatasource.username=dev
spring.hivedatasource.password=dev
spring.hivedatasource.driver-class-name=org.apache.hive.jdbc.HiveDriver
application-test.properties:
spring.hivedatasource.url=<hive dev data source url>
spring.hivedatasource.username=test
spring.hivedatasource.password=test
spring.hivedatasource.driver-class-name=org.apache.hive.jdbc.HiveDriver
And a primary application.properties file to select the profile:
application.properties:
spring.profiles.active=dev
server.tomcat.max-threads = 10
spring.application.name=sampleApp
Define the DB Configuration as below:
@Configuration
@ConfigurationProperties(prefix="spring.hivedatasource")
public class DBConfig {
@Profile("dev")
@Qualifier("hivedatasource")
@Primary
@Bean
public DataSource devHiveDataSource() {
System.out.println("DataSource bean created for Dev");
return new BasicDataSource();
}
@Profile("test")
@Qualifier("hivedatasource")
@Primary
@Bean
public DataSource testHiveDataSource() {
System.out.println("DataSource bean created for Test");
return new BasicDataSource();
}
This will automatically create the BasicDataSource bean according to the active profile set in application.properties file. Run the Spring-boot application and test.
Note that this will create an empty bean initially until getConnection() is called. Once the connection is available you can get the url, driver-class, etc. using that DataSource bean.
Yet another SQLite wrapper for Swift 2 and Swift 3: http://github.com/groue/GRDB.swift
Features:
An API that will look familiar to users of ccgus/fmdb
A low-level SQLite API that leverages the Swift standard library
A pretty Swift query interface for SQL-allergic developers
Support for the SQLite WAL mode, and concurrent database access for extra performance
A Record class that wraps result sets, eats your custom SQL queries for breakfast, and provides basic CRUD operations
Swift type freedom: pick the right Swift type that fits your data. Use Int64 when needed, or stick with the convenient Int. Store and read NSDate or NSDateComponents. Declare Swift enums for discrete data types. Define your own database-convertible types.
Database Migrations
Note your code contains Dir("thesentence")
which should be Dir(thesentence)
.
Change your code to this
Sub test()
thesentence = InputBox("Type the filename with full extension", "Raw Data File")
Range("A1").Value = thesentence
If Dir(thesentence) <> "" Then
MsgBox "File exists."
Else
MsgBox "File doesn't exist."
End If
End Sub
In regards to @RitchieD response, here is a jQuery plugin version to make things easier if you are using jQuery.
(function ($) {
$.fn.initValidation = function () {
$(this).removeData("validator");
$(this).removeData("unobtrusiveValidation");
$.validator.unobtrusive.parse(this);
return this;
};
}(jQuery));
This can be used like this:
$("#SomeForm").initValidation();
TimeSpan can be added to a fresh DateTime to achieve this.
TimeSpan ts="XXX";
DateTime dt = new DateTime() + ts;
But as mentioned before, it is not strictly logical without a valid start date. I have encountered a use-case where i required only the time aspect. will work fine as long as the logic is correct.
The element has both an attribute and a property named checked
. The property determines the current state.
The attribute is a string, and the property is a boolean. When the element is created from the HTML code, the attribute is set from the markup, and the property is set depending on the value of the attribute.
If there is no value for the attribute in the markup, the attribute becomes null
, but the property is always either true
or false
, so it becomes false
.
When you set the property, you should use a boolean value:
document.getElementById('myRadio').checked = true;
If you set the attribute, you use a string:
document.getElementById('myRadio').setAttribute('checked', 'checked');
Note that setting the attribute also changes the property, but setting the property doesn't change the attribute.
Note also that whatever value you set the attribute to, the property becomes true
. Even if you use an empty string or null
, setting the attribute means that it's checked. Use removeAttribute
to uncheck the element using the attribute:
document.getElementById('myRadio').removeAttribute('checked');
You could do many of the given answers, but if you just want to do it to be able to use it with strcpy
, then you could do the following:
...
strcpy( ... , (char[2]) { (char) c, '\0' } );
...
The (char[2]) { (char) c, '\0' }
part will temporarily generate null-terminated string out of a character c
.
This way you could avoid creating new variables for something that you already have in your hands, provided that you'll only need that single-character string just once.
Solution:
Step1: Have to remove “lock” file which present under “.svn” hidden file.
Step2: In case if there is no “lock” file then you would see “we.db” you have to open this database and need to delete content alone from the following tables
– lock
– wc_lock
Step3: Clean your project
Step4: Try to commit now.
Step5: Done.
Add this key in plist file...Everything will be alright..
<key>ITSAppUsesNonExemptEncryption</key>
<false/>
Just paste before </dict></plist>
You sure can.
protected void GetColumNames_DataReader()
{
System.Data.SqlClient.SqlConnection SqlCon = new System.Data.SqlClient.SqlConnection("server=localhost;database=northwind;trusted_connection=true");
System.Data.SqlClient.SqlCommand SqlCmd = new System.Data.SqlClient.SqlCommand("SELECT * FROM Products", SqlCon);
SqlCon.Open();
System.Data.SqlClient.SqlDataReader SqlReader = SqlCmd.ExecuteReader();
System.Int32 _columncount = SqlReader.FieldCount;
System.Web.HttpContext.Current.Response.Write("SqlDataReader Columns");
System.Web.HttpContext.Current.Response.Write(" ");
for ( System.Int32 iCol = 0; iCol < _columncount; iCol ++ )
{
System.Web.HttpContext.Current.Response.Write("Column " + iCol.ToString() + ": ");
System.Web.HttpContext.Current.Response.Write(SqlReader.GetName( iCol ).ToString());
System.Web.HttpContext.Current.Response.Write(" ");
}
}
This is originally from: http://www.dotnetjunkies.ddj.com/Article/B82A22D1-8437-4C7A-B6AA-C6C9BE9DB8A6.dcik
The RxJS functions need to be specifically imported. An easy way to do this is to import all of its features with import * as Rx from "rxjs/Rx"
Then make sure to access the Observable
class as Rx.Observable
.
Some time ago Jupyter Notebooks started stripping JavaScript from HTML content [#3118]. Here are two solutions:
Serving Local HTML
If you want to embed an HTML page with JavaScript on your page now, the easiest thing to do is to save your HTML file to the directory with your notebook and then load the HTML as follows:
from IPython.display import IFrame
IFrame(src='./nice.html', width=700, height=600)
Serving Remote HTML
If you prefer a hosted solution, you can upload your HTML page to an Amazon Web Services "bucket" in S3, change the settings on that bucket so as to make the bucket host a static website, then use an Iframe component in your notebook:
from IPython.display import IFrame
IFrame(src='https://s3.amazonaws.com/duhaime/blog/visualizations/isolation-forests.html', width=700, height=600)
This will render your HTML content and JavaScript in an iframe, just like you can on any other web page:
<iframe src='https://s3.amazonaws.com/duhaime/blog/visualizations/isolation-forests.html', width=700, height=600></iframe>
_x000D_
The list variable (which I would recommend to rename to something more sensible) is a reference to a list object, which can be changed.
On the line
listoflists.append((list, list[0]))
You actually are only adding a reference to the object reference by the list variable. You've got multiple possibilities to create a copy of the list, so listoflists contains the values as you seem to expect:
Use the copy library
import copy
listoflists.append((copy.copy(list), list[0]))
use the slice notation
listoflists.append((list[:], list[0]))
Here is another, very manual solution. You can define the size of the axis and paddings are considered accordingly (including legend and tickmarks). Hope it is of use to somebody.
Example (axes size are the same!):
Code:
#==================================================
# Plot table
colmap = [(0,0,1) #blue
,(1,0,0) #red
,(0,1,0) #green
,(1,1,0) #yellow
,(1,0,1) #magenta
,(1,0.5,0.5) #pink
,(0.5,0.5,0.5) #gray
,(0.5,0,0) #brown
,(1,0.5,0) #orange
]
import matplotlib.pyplot as plt
import numpy as np
import collections
df = collections.OrderedDict()
df['labels'] = ['GWP100a\n[kgCO2eq]\n\nasedf\nasdf\nadfs','human\n[pts]','ressource\n[pts]']
df['all-petroleum long name'] = [3,5,2]
df['all-electric'] = [5.5, 1, 3]
df['HEV'] = [3.5, 2, 1]
df['PHEV'] = [3.5, 2, 1]
numLabels = len(df.values()[0])
numItems = len(df)-1
posX = np.arange(numLabels)+1
width = 1.0/(numItems+1)
fig = plt.figure(figsize=(2,2))
ax = fig.add_subplot(111)
for iiItem in range(1,numItems+1):
ax.bar(posX+(iiItem-1)*width, df.values()[iiItem], width, color=colmap[iiItem-1], label=df.keys()[iiItem])
ax.set(xticks=posX+width*(0.5*numItems), xticklabels=df['labels'])
#--------------------------------------------------
# Change padding and margins, insert legend
fig.tight_layout() #tight margins
leg = ax.legend(loc='upper left', bbox_to_anchor=(1.02, 1), borderaxespad=0)
plt.draw() #to know size of legend
padLeft = ax.get_position().x0 * fig.get_size_inches()[0]
padBottom = ax.get_position().y0 * fig.get_size_inches()[1]
padTop = ( 1 - ax.get_position().y0 - ax.get_position().height ) * fig.get_size_inches()[1]
padRight = ( 1 - ax.get_position().x0 - ax.get_position().width ) * fig.get_size_inches()[0]
dpi = fig.get_dpi()
padLegend = ax.get_legend().get_frame().get_width() / dpi
widthAx = 3 #inches
heightAx = 3 #inches
widthTot = widthAx+padLeft+padRight+padLegend
heightTot = heightAx+padTop+padBottom
# resize ipython window (optional)
posScreenX = 1366/2-10 #pixel
posScreenY = 0 #pixel
canvasPadding = 6 #pixel
canvasBottom = 40 #pixel
ipythonWindowSize = '{0}x{1}+{2}+{3}'.format(int(round(widthTot*dpi))+2*canvasPadding
,int(round(heightTot*dpi))+2*canvasPadding+canvasBottom
,posScreenX,posScreenY)
fig.canvas._tkcanvas.master.geometry(ipythonWindowSize)
plt.draw() #to resize ipython window. Has to be done BEFORE figure resizing!
# set figure size and ax position
fig.set_size_inches(widthTot,heightTot)
ax.set_position([padLeft/widthTot, padBottom/heightTot, widthAx/widthTot, heightAx/heightTot])
plt.draw()
plt.show()
#--------------------------------------------------
#==================================================
Wanny is correct. The &&
operator doesn't work in HTML. With Angular, you must use the double pipes (||
)for multiple conditions.
Here's another possible reason besides the console.log
issue (at least in IE11):
When the console is not open, IE does pretty aggressive caching, so make sure that any $.ajax
calls or XMLHttpRequest
calls have caching set to false.
For example:
$.ajax({cache: false, ...})
When the developer console is open, caching is less aggressive. Seems to be a bug (or maybe a feature?)
Here's another:
data[data$Code == "A" | data$Code == "B", ]
It's also worth mentioning that the subsetting factor doesn't have to be part of the data frame if it matches the data frame rows in length and order. In this case we made our data frame from this factor anyway. So,
data[Code == "A" | Code == "B", ]
also works, which is one of the really useful things about R.
Depending on your usage, I had success with the following:
ssh root@server "script"
This will prompt for the root password and then execute the command correctly.
Implementation of a callback is done like so
// This function uses a callback function.
function doIt($callback)
{
$data = "this is my data";
$callback($data);
}
// This is a sample callback function for doIt().
function myCallback($data)
{
print 'Data is: ' . $data . "\n";
}
// Call doIt() and pass our sample callback function's name.
doIt('myCallback');
Displays: Data is: this is my data
A lookahead regex syntax can help you to achieve your goal. Thus a regex for your example is
.*?quick.*?(?=z)
And it's important to notice the .*?
lazy matching before the (?=z)
lookahead: the expression matches a substring until a first occurrence of the z
letter.
Here is C# code sample:
const string text = "The quick red fox jumped over the lazy brown dogz";
string lazy = new Regex(".*?quick.*?(?=z)").Match(text).Value;
Console.WriteLine(lazy); // The quick red fox jumped over the la
string greedy = new Regex(".*?quick.*(?=z)").Match(text).Value;
Console.WriteLine(greedy); // The quick red fox jumped over the lazy brown dog
In jQuery, you can use:
let myObject = {first:1, second:12, third:5};
jQuery.param(myObject);
Doc: http://api.jquery.com/jquery.param/ The output: first=1&second=12&third=5 This will format it, whatever your object contain.
@coni2k 's answer is correct however you must add [StringLength]
attribute for it to work otherwise you will get an invalid key exception (Example bellow).
[StringLength(65)]
[Index("IX_FirstNameLastName", 1, IsUnique = true)]
public string FirstName { get; set; }
[StringLength(65)]
[Index("IX_FirstNameLastName", 2, IsUnique = true)]
public string LastName { get; set; }
Thanks @Joey. It's what I am looking for.
I just bring some improvements:
function Stop-Processes {
param(
[parameter(Mandatory=$true)] $processName,
$timeout = 5
)
$processList = Get-Process $processName -ErrorAction SilentlyContinue
if ($processList) {
# Try gracefully first
$processList.CloseMainWindow() | Out-Null
# Wait until all processes have terminated or until timeout
for ($i = 0 ; $i -le $timeout; $i ++){
$AllHaveExited = $True
$processList | % {
$process = $_
If (!$process.HasExited){
$AllHaveExited = $False
}
}
If ($AllHaveExited){
Return
}
sleep 1
}
# Else: kill
$processList | Stop-Process -Force
}
}
Simple answer.
The map
operation can produce a Stream
of Stream
.EX Stream<Stream<Integer>>
flatMap
operation will only produce Stream
of something. EX Stream<Integer>
dictionary['key'] = dictionary.get('key', []) + list_to_append
What are the advantages of having a contiguous block of memory? Specifically, why would I need to have a contiguous physical block of memory in a system call? Is there any reason I couldn't just use vmalloc?
From Google's "I'm Feeling Lucky" on vmalloc
:
kmalloc is the preferred way, as long as you don't need very big areas. The trouble is, if you want to do DMA from/to some hardware device, you'll need to use kmalloc, and you'll probably need bigger chunk. The solution is to allocate memory as soon as possible, before memory gets fragmented.
To insert a sleep command you can use Thread.sleep(2000). So the code would be:
List<Integer> myCoords = new ArrayList<Integer>();
myCoords.add(10);
myCoords.add(20);
myCoords.add(30);
myCoords.add(40);
myCoords.add(50);
Iterator<Integer> myListIterator = someList.iterator();
while (myListIterator.hasNext()) {
Integer coord = myListIterator.next();
System.out.println(coord);
Thread.Sleep(2000);
}
This would output: 10 20 30 40 50
If you want the numbers after each other you could use: System.out.print(coord +" " ); and if you want to repeat the section you can put it in another while loop.
List<Integer> myCoords = new ArrayList<Integer>();
myCoords.add(10);
myCoords.add(20);
myCoords.add(30);
myCoords.add(40);
myCoords.add(50);
while(true)
Iterator<Integer> myListIterator = someList.iterator();
while (myListIterator.hasNext()) {
Integer coord = myListIterator.next();
System.out.print(coord + " ");
Thread.Sleep(2000);
}
}
This would output: 10 20 30 40 50 10 20 30 40 50 ... and never stop until you kill the program.
Edit: You do have to put the sleep command in a try catch block
Simplest solution: Use Unicode Characters
No expression
or other packages needed.
Not sure if this is a newer feature for ggplot, but it works.
It also makes it easy to mix Greek and regular text (like adding '*' to the ticks)
Just use unicode characters within the text string. seems to work well for all options I can think of. Edit: previously it did not work in facet labels. This has apparently been fixed at some point.
library(ggplot2)
ggplot(mtcars,
aes(mpg, disp, color=factor(gear))) +
geom_point() +
labs(title="Title (\u03b1 \u03a9)", # works fine
x= "\u03b1 \u03a9 x-axis title", # works fine
y= "\u03b1 \u03a9 y-axis title", # works fine
color="\u03b1 \u03a9 Groups:") + # works fine
scale_x_continuous(breaks = seq(10, 35, 5),
labels = paste0(seq(10, 35, 5), "\u03a9*")) + # works fine; to label the ticks
ggrepel::geom_text_repel(aes(label = paste(rownames(mtcars), "\u03a9*")), size =3) + # works fine
facet_grid(~paste0(gear, " Gears \u03a9"))
Created on 2019-08-28 by the reprex package (v0.3.0)
The way I often deal with the situation you describe is to use the .to_csv()
method and write to stdout:
import sys
df.to_csv(sys.stdout)
Update: it should now be possible to just use None
instead of sys.stdout
with similar effect!
This should dump the whole dataframe, including the entirety of any strings. You can use the to_csv parameters to configure column separators, whether the index is printed, etc. It will be less pretty than rendering it properly though.
I posted this originally in answer to the somewhat-related question at Output data from all columns in a dataframe in pandas
array_merge
is the elegant way:
$a = array('a', 'b');
$b = array('c', 'd');
$merge = array_merge($a, $b);
// $merge is now equals to array('a','b','c','d');
Doing something like:
$merge = $a + $b;
// $merge now equals array('a','b')
Will not work, because the +
operator does not actually merge them. If they $a
has the same keys as $b
, it won't do anything.
In Windows SourceTree, untick Push all tags to remotes
.
Or.. Pattern#quote
:
String[] value_split = rat_values.split(Pattern.quote("|"));
This is happening because String#split
accepts a regex:
|
has a special meaning in regex.
quote
will return a String representation for the regex.
If you always add to the end, then each element will be added to the end and stay that way until you change it.
If you always insert at the start, then each element will appear in the reverse order you added them.
If you insert them in the middle, the order will be something else.
Use DecimalFormat
double answer = 5.0;
DecimalFormat df = new DecimalFormat("###.#");
System.out.println(df.format(answer));
#include "math.h"
#include "stdio.h"
///////////////////////////////////////////////////////////////
// The bits arg represents the bit say:8,16,32...
/////////////////////////////////////////////////////////////
volatile long Hex_To_Int(long Hex,char bits)
{
long Hex_2_Int;
char byte;
Hex_2_Int=0;
for(byte=0;byte<bits;byte++)
{
if(Hex&(0x0001<<byte))
Hex_2_Int+=1*(pow(2,byte));
else
Hex_2_Int+=0*(pow(2,byte));
}
return Hex_2_Int;
}
///////////////////////////////////////////////////////////////
//
/////////////////////////////////////////////////////////////
void main (void)
{
int Dec;
char Hex=0xFA;
Dec= Hex_To_Int(Hex,8); //convert an 8-bis hexadecimal value to a number in base 10
printf("the number is %d",Dec);
}
GRANT ALL ON *.* TO 'user'@'localhost' with GRANT OPTION;
Just log in from root using the respective password if any and simply run the above command to whatever the user is.
For example:
GRANT ALL ON *.* TO 'root'@'%' with GRANT OPTION;
Using bootstrap with font awesome.
<a class="btn btn-large btn-primary logout" href="#">
<i class="fa fa-sign-out" aria-hidden="true">Logout</i>
</a>
What I do is use Object.keys() to return a list of all the keys and then get the length of that
Object.keys(dictionary).length
select regexp_replace(field, E'[\\n\\r\\u2028]+', ' ', 'g' )
I had the same problem in my postgres d/b, but the newline in question wasn't the traditional ascii CRLF, it was a unicode line separator, character U2028. The above code snippet will capture that unicode variation as well.
Update... although I've only ever encountered the aforementioned characters "in the wild", to follow lmichelbacher's advice to translate even more unicode newline-like characters, use this:
select regexp_replace(field, E'[\\n\\r\\f\\u000B\\u0085\\u2028\\u2029]+', ' ', 'g' )
You can also set the title of your chart by adding the title parameter as follows
ax.set(xlabel='common xlabel', ylabel='common ylabel', title='some title')
Just for anyone who still has an issue, I also had an issue where I typed ngif
rather than ngIf
(notice the capital 'I').
Most of the answers even the most voted answers didn't do the job properly, they seem to work and the builds work however, a closer look at the file structure and references will show you that not much was done. IntelliJ actually does this whole process automatically.
1) Go to Project Tab and make sure Packages is the active Tab in the drop down like so:
find your com.example package (note test as in com.example.test is not there) right-click and choose Refactor->Rename...
It will issue a warning that multiple directories... (which is actually the desired effect), click on Rename package.
Input the new package name and Refactor...
It will do searches and show you refactoring results.
Click on the Do Refactor button and it will do everything and even rename the folders and files involved... every reference is corrected to this new name.
2) Then Finally change the AndroidManifest.xml file
:)
Adding my localhost on Valid OAuth redirect URIs at https://developers.facebook.com/apps/YOUR_APP_ID/fb-login/ solved the problem!
And pay attention for one detail here:
In this case http://localhost:3000 is not the same of http://0.0.0.0:3000 or http://127.0.0.1:3000
Make sure you are using exactly the running url of you sandbox server. I spend some time to discover that...
PHP is a server level scripting language. It can do many things, but one popular use is to include HTML documents inside your pages, much the same as SSI. Like SSI, this is a server level technology. If you are not sure if you have PHP functionality on your website contact your hosting provider.
Here is a simple PHP script you can use to include a snippet of HTML on any PHP-enabled web page:
Save the HTML for the common elements of your site to separate files. For example, your navigation section might be saved as navigation.html or navigation.php. Use the following PHP code to include that HTML in each page.
<?php require($DOCUMENT_ROOT . "navigation.php"); ?>
Use that same code on every page that you want to include the file. Make sure to change the higlighted file name to the name and path to your include file.
I was able to get this working with CSS only.
The trick is to use display: flex;
and flex-direction: column-reverse;
The browser treats the bottom like its the top. Assuming the browsers you're targeting support flex-box
, the only caveat is that the markup has to be in reverse order.
Here is a working example. https://codepen.io/jimbol/pen/YVJzBg
You have to use parseInt() to convert
For eg.
var z = parseInt(x) + parseInt(y);
use parseFloat() if you want to handle float value.
Use $n
(where n is a digit) to refer to captured subsequences in replaceFirst(...)
. I'm assuming you wanted to replace the first group with the literal string "number" and the second group with the value of the first group.
Pattern p = Pattern.compile("(\\d)(.*)(\\d)");
String input = "6 example input 4";
Matcher m = p.matcher(input);
if (m.find()) {
// replace first number with "number" and second number with the first
String output = m.replaceFirst("number $3$1"); // number 46
}
Consider (\D+)
for the second group instead of (.*)
. *
is a greedy matcher, and will at first consume the last digit. The matcher will then have to backtrack when it realizes the final (\d)
has nothing to match, before it can match to the final digit.
Has anyone else noticed that the json string/object is invalid in all answers except for David Hedlund's? :)
JSON objects must be formatted in the following manner: {"key": ("value" | 0 | false)}. Also, writing it out as a string requires much less than stringifying the object...
As of . 2015 / 02 / 24 . there is a website (youtubeinmp4) that allows you to download youtube videos in .mp4 format
, you can exploit this (with some JavaScript) to get away with embedding youtube videos in <video>
tags. Here is a demo of this in action.
##Pros
##Cons
It obviously depends on the youtubeinmp4.com
servers and their way of providing a downloading link (which can be passed as a <video>
source), so this answer may not be valid in the future.
You can't choose the video quality.
###JavaScript (after load
)
videos = document.querySelectorAll("video");
for (var i = 0, l = videos.length; i < l; i++) {
var video = videos[i];
var src = video.src || (function () {
var sources = video.querySelectorAll("source");
for (var j = 0, sl = sources.length; j < sl; j++) {
var source = sources[j];
var type = source.type;
var isMp4 = type.indexOf("mp4") != -1;
if (isMp4) return source.src;
}
return null;
})();
if (src) {
var isYoutube = src && src.match(/(?:youtu|youtube)(?:\.com|\.be)\/([\w\W]+)/i);
if (isYoutube) {
var id = isYoutube[1].match(/watch\?v=|[\w\W]+/gi);
id = (id.length > 1) ? id.splice(1) : id;
id = id.toString();
var mp4url = "http://www.youtubeinmp4.com/redirect.php?video=";
video.src = mp4url + id;
}
}
}
###Usage (Full)
<video controls="true">
<source src="www.youtube.com/watch?v=3bGNuRtlqAQ" type="video/mp4" />
</video>
_x000D_
Standard video format.
###Usage (Mini)
<video src="youtu.be/MLeIBFYY6UY" controls="true"></video>
_x000D_
A little less common but quite smaller, using the shortened url youtu.be
as the src
attribute directly in the <video>
tag.
One could use Where-Object
if ((Get-Service | Where-Object {$_.Name -eq $serviceName}).length -eq 1) {
"Service Exists"
}
The std::string object returned by ss.str() is a temporary object that will have a life time limited to the expression. So you cannot assign a pointer to a temporary object without getting trash.
Now, there is one exception: if you use a const reference to get the temporary object, it is legal to use it for a wider life time. For example you should do:
#include <string>
#include <sstream>
#include <iostream>
using namespace std;
int main()
{
stringstream ss("this is a string\n");
string str(ss.str());
const char* cstr1 = str.c_str();
const std::string& resultstr = ss.str();
const char* cstr2 = resultstr.c_str();
cout << cstr1 // Prints correctly
<< cstr2; // No more error : cstr2 points to resultstr memory that is still alive as we used the const reference to keep it for a time.
system("PAUSE");
return 0;
}
That way you get the string for a longer time.
Now, you have to know that there is a kind of optimisation called RVO that say that if the compiler see an initialization via a function call and that function return a temporary, it will not do the copy but just make the assigned value be the temporary. That way you don't need to actually use a reference, it's only if you want to be sure that it will not copy that it's necessary. So doing:
std::string resultstr = ss.str();
const char* cstr2 = resultstr.c_str();
would be better and simpler.
I was getting crazy because none of the answers here worked for me.
To show the menu I had to call: setSupportActionBar(toolbar)
Done!
Note: if your toolbar
view isn't in the same activity layout you can't use the call above directly from your activity class, in this case you'll need to get that activity from your fragment class and then call the setSupportActionBar(toolbar)
. Remembering: your activity class should extends the AppCompatActivity.
Hope that this answer help you.
There's an easy way to produce this error:
$joe = null;
$joe->anything();
Will render the error:
Fatal error: Call to a member function
anything()
on a non-object in /Applications/XAMPP/xamppfiles/htdocs/casMail/dao/server.php on line 23
It would be a lot better if PHP would just say,
Fatal error: Call from Joe is not defined because (a) joe is null or (b) joe does not define
anything()
in on line <##>.
Usually you have build your class so that $joe
is not defined in the constructor or
It's simply a matter of scaling the image width and height up by the correct ratio. Not all images formats support a DPI metatag, and when they do, all they're telling your graphics software to do is divide the image by the ratio supplied.
For example, if you export a 300dpi image from Photoshop to a JPEG, the image will appear to be very large when viewed in your picture viewing software. This is because the DPI information isn't supported in JPEG and is discarded when saved. This means your picture viewer doesn't know what ratio to divide the image by and instead displays the image at at 1:1 ratio.
To get the ratio you need to scale the image by, see the code below. Just remember, this will stretch the image, just like it would in Photoshop. You're essentially quadrupling the size of the image so it's going to stretch and may produce artifacts.
Pseudo code
ratio = 300.0 / 72.0 // 4.167
image.width * ratio
image.height * ratio
A browser request "127.0.0.1/somefile.html" arrives unchanged to the local webserver, while "localhost/somefile.html" may arrive as "0:0:0:0:0:0:0:1/somefile.html" if IPv6 is supported. So the latter can be processed as going from a domain to another.
It is possible to make a text-input multi-line by giving it the word-break: break-word;
attribute. (Only tested this in Chrome)
You have conditions that are mutually exclusive - if meta_key is 'first_name', it can't also be 'yearofpassing'. Most likely you need your AND's to be OR's:
$result = mysql_query("SELECT user_id FROM wp_usermeta
WHERE (meta_key = 'first_name' AND meta_value = '$us_name')
OR (meta_key = 'yearofpassing' AND meta_value = '$us_yearselect')
OR (meta_key = 'u_city' AND meta_value = '$us_reg')
OR (meta_key = 'us_course' AND meta_value = '$us_course')")
I use this functions
function strright($str, $separator) {
if (intval($separator)) {
return substr($str, -$separator);
} elseif ($separator === 0) {
return $str;
} else {
$strpos = strpos($str, $separator);
if ($strpos === false) {
return $str;
} else {
return substr($str, -$strpos + 1);
}
}
}
function strleft($str, $separator) {
if (intval($separator)) {
return substr($str, 0, $separator);
} elseif ($separator === 0) {
return $str;
} else {
$strpos = strpos($str, $separator);
if ($strpos === false) {
return $str;
} else {
return substr($str, 0, $strpos);
}
}
}
You can use this one and it's best practice.
SingleChildScrollView( child: Column( children: <Widget>[ //Your Widgets //Your Widgets, //Your Widgets ], ), );
Yes, you must open php.ini
and remove the semicolon to:
;extension=php_openssl.dll
If you don't have that line, check that you have the file (In my PC is on D:\xampp\php\ext
) and add this to php.ini
in the "Dynamic Extensions" section:
extension=php_openssl.dll
Things have changed for PHP > 7. This is what i had to do for PHP 7.2.
Step: 1: Uncomment extension=openssl
Step: 2: Uncomment extension_dir = "ext"
Step: 3: Restart xampp.
Done.
Explanation: ( From php.ini )
If you wish to have an extension loaded automatically, use the following syntax:
extension=modulename
Note : The syntax used in previous PHP versions (extension=<ext>.so
and extension='php_<ext>.dll
) is supported for legacy reasons and may be deprecated in a future PHP major version. So, when it is possible, please move to the new (extension=<ext>
) syntax.
Special Note: Be sure to appropriately set the extension_dir
directive.
Let's consider your DOM as
<a>
<!-- some other icons and texts -->
<span>Close</span>
</a>
Now that you need to select parent tag 'a' based on <span>
text, then use
driver.findElement(By.xpath("//a[.//span[text()='Close']]"));
Explanation: Select the node based on its child node's value
The following does not return a response:
You must return anything like return afunction()
or return 'a string'
.
This can solve the issue
For List<List<List<x>>>
and so on, use
list.SelectMany(x => x.SelectMany(y => y)).ToList();
This has been posted in a comment, but it does deserves a separate reply in my opinion.
Using an absolute or relative string as the filename.
name_of_file = input("What is the name of the file: ")
completeName = '/home/user/Documents'+ name_of_file + ".txt"
file1 = open(completeName , "w")
toFile = input("Write what you want into the field")
file1.write(toFile)
file1.close()
@echo off
setlocal enableextensions enabledelayedexpansion
if %1=="" (
rem Set default path
set PWA_PATH="C:\Program Files\PWA"
rem
echo You have not specified your PWA url.
echo Default will be assumed: C:\Program Files\PWA.
choice /C:YN /M:"Do you wish to continue [Y] or cancel the script [N]?"
IF ERRORLEVEL ==2 GOTO CANCEL
IF ERRORLEVEL ==1 GOTO READ_WSS_SERVER_EXTENSIONS_PATH
GOTO END
) else (
set PWA_PATH=%1
@echo !PWA_PATH! vs. %1
goto end
)
:READ_WSS_SERVER_EXTENSIONS_PATH
echo ok
goto end
:CANCEL
echo cancelled
:end
echo. final %PWA_PATH% vs. %1
As VardhanDotNet mentions, %1
is enough.
"%1%"
would add quotes around quotes: ""c:\Program Files\xxx""
which means:
""
), ""
)Note however that if you need to use PWA_PATH
within your IF
clause, you need to refer if as !PWA_PATH!
(hence the enabledelayedexpansion
as the beginning of the script)
Use value instanceof YourClass
The most simple solution but not 100% accurate
$(':hover').last().offset()
Result: {top: 148, left: 62.5}
The result depend on the nearest element size and return undefined
when user switched the tab
Here is what worked for me:
telnet
It will confirm whether the port is opened.
By commenting it out this part on my web.config solved my problem:
<dependentAssembly>
<assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
</dependentAssembly>
But of course you need to make sure you have updated or you have the right version by doing this in your package manager console:
update-package Newtonsoft.Json -reinstall
I believe that you're looking for numpy.split
or possibly numpy.array_split
if the number of sections doesn't need to divide the size of the array properly.
Try Collections.shuffle(list).If usage of this method is barred for solving the problem, then one can look at the actual implementation.
$scope.$watch('age + name', function () {
//called when name or age changed
});
You can use Java Pluggable Annotation Processing API to write annotation processor which will be executed during the compilation process and will collect all annotated classes and build the index file for runtime use.
This is the fastest way possible to do annotated class discovery because you don't need to scan your classpath at runtime, which is usually very slow operation. Also this approach works with any classloader and not only with URLClassLoaders usually supported by runtime scanners.
The above mechanism is already implemented in ClassIndex library.
To use it annotate your custom annotation with @IndexAnnotated meta-annotation. This will create at compile time an index file: META-INF/annotations/com/test/YourCustomAnnotation listing all annotated classes. You can acccess the index at runtime by executing:
ClassIndex.getAnnotated(com.test.YourCustomAnnotation.class)
Install mysql connector using the below command.
pip install mysql-connector-python-rf
Use the command to set the privileges.
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY
'very_strong_password';
FLUSH PRIVILEGES;
Use the python command to connect to mysql database
mydb = mysql.connector.connect(
host="localhost",
user="root",
passwd="very_strong_password",
auth_plugin='mysql_native_password')
Just use:
param.AddWithValue("@Date_Of_Birth",DOB);
That will take care of all your problems.
Look at the specification here: section 2.7.3 http://tools.ietf.org/html/draft-ietf-httpbis-p1-messaging-25#page-19
The scheme and host are case-insensitive and normally provided in lowercase; all other components are compared in a case-sensitive manner.
I think floats may work best for you here, if you dont want the element to occupy the whole line, float it left should work.
.feature_wrapper span {
float: left;
clear: left;
display:inline
}
EDIT: now browsers have better support you can make use of the do inline-block.
.feature_wrapper span {
display:inline-block;
*display:inline; *zoom:1;
}
Depending on the text-align this will appear as through its inline while also acting like a block element.
I had the same problem with jquery-ui overlay dialog box - it would work only once and then stop unless i reload the page. I found the answer in one of their examples -
Multiple overlays on a same page
flowplayer_tools_multiple_open_close
- who would have though, right?? :-) -
the important setting appeared to be
oneInstance: false
so, now i have it like this -
$(document).ready(function() {
var overlays = null;
overlays = jQuery("a[rel]");
for (var n = 0; n < overlays.length; n++) {
$(overlays[n]).overlay({
oneInstance: false,
mask: '#669966',
effect: 'apple',
onBeforeLoad: function() {
overlay_before_load(this);
}
});
}
}
and everything works just fine
hope this helps somebody
O.
First enable mod_headers
on your server, then you can use header directive in both Apache conf and .htaccess
.
mod_headers
a2enmod headers
.htaccess
fileHeader add Access-Control-Allow-Origin "*"
Header add Access-Control-Allow-Headers "origin, x-requested-with, content-type"
Header add Access-Control-Allow-Methods "PUT, GET, POST, DELETE, OPTIONS"
Adding MongoDb
bin path in Environment path with \
worked for me
This is what my system path
C:\ProgramData\Oracle\Java\javapath;
...
...
Other path variables
...
;C:\Users\hitesh.sahu\AppData\Local\Android\sdk\platform-tools
;C:\Program Files\MongoDB\Server\3.2\bin\
Make sure:-
;
@AnandaMahto has addressed why you're getting these results and provided the clearest way to get what you want. But another option would be to use identical
instead of ==
.
test$ID <- ifelse(is.na(test$time) | sapply(as.character(test$type), identical, "A"), NA, "1")
Or use isTRUE
:
test$ID <- ifelse(is.na(test$time) | Vectorize(isTRUE)(test$type == "A"), NA, "1")
A volatile can be changed from outside the compiled code (for example, a program may map a volatile variable to a memory mapped register.) The compiler won't apply certain optimizations to code that handles a volatile variable - for example, it won't load it into a register without writing it to memory. This is important when dealing with hardware registers.
Bit late but recently I have found out that MySql 5.7 got http plugin throuh which user can directly connect to mysql now.
Look for Http Client for mysql 5.7
Try using cmake itself. In the build directory, run:
cmake --build .
I found the best solution here, the key of this issue is the addEntity method
public static void testSimpleSQL() {
final Session session = sessionFactory.openSession();
SQLQuery q = session.createSQLQuery("select * from ENTITY");
q.addEntity(Entity.class);
List<Entity> entities = q.list();
for (Entity entity : entities) {
System.out.println(entity);
}
}
From this post:
To get the entire PC CPU and Memory usage:
using System.Diagnostics;
Then declare globally:
private PerformanceCounter theCPUCounter =
new PerformanceCounter("Processor", "% Processor Time", "_Total");
Then to get the CPU time, simply call the NextValue()
method:
this.theCPUCounter.NextValue();
This will get you the CPU usage
As for memory usage, same thing applies I believe:
private PerformanceCounter theMemCounter =
new PerformanceCounter("Memory", "Available MBytes");
Then to get the memory usage, simply call the NextValue()
method:
this.theMemCounter.NextValue();
For a specific process CPU and Memory usage:
private PerformanceCounter theCPUCounter =
new PerformanceCounter("Process", "% Processor Time",
Process.GetCurrentProcess().ProcessName);
where Process.GetCurrentProcess().ProcessName
is the process name you wish to get the information about.
private PerformanceCounter theMemCounter =
new PerformanceCounter("Process", "Working Set",
Process.GetCurrentProcess().ProcessName);
where Process.GetCurrentProcess().ProcessName
is the process name you wish to get the information about.
Note that Working Set may not be sufficient in its own right to determine the process' memory footprint -- see What is private bytes, virtual bytes, working set?
To retrieve all Categories, see Walkthrough: Retrieving Categories and Counters
The difference between Processor\% Processor Time
and Process\% Processor Time
is Processor
is from the PC itself and Process
is per individual process. So the processor time of the processor would be usage on the PC. Processor time of a process would be the specified processes usage. For full description of category names: Performance Monitor Counters
An alternative to using the Performance Counter
Use System.Diagnostics.Process.TotalProcessorTime and System.Diagnostics.ProcessThread.TotalProcessorTime properties to calculate your processor usage as this article describes.
Similar to @joe_deniable 's answer the thing I found with my own projects was that gradle would output that kind of error when there was a misconfiguration of my system.
I discovered that by running gradlew installDebug or similar command from the terminal I got better output as to what the real problem was.
e.g. initially it turns out my JAVA_HOME was not setup correctly. Then I discovered it encountered errors because I didn't have a package space setup correctly. Etc.
Redirection of program output is performed by the shell.
grep ... > output.txt
grep
has no mechanism for adding blank lines between each match, but does provide options such as context around the matched line and colorization of the match itself. See the grep(1)
man page for details, specifically the -C
and --color
options.
As mentioned by @marc_s, @Cloud, et al. they're basically the same for a closed range.
But any fractional time values may cause issues with a closed range (greater-or-equal and less-or-equal) as opposed to a half-open range (greater-or-equal and less-than) with an end value after the last possible instant.
So to avoid that the query should be rewritten as:
SELECT EventId, EventName
FROM EventMaster
WHERE (EventDate >= '2009-10-15' AND
EventDate < '2009-10-19') /* <<<== 19th, not 18th */
Since BETWEEN
doesn't work for half-open intervals I always take a hard look at any date/time query that uses it, since its probably an error.
Yes. Try the following in your python interpreter:
and
>>>False and 3/0
False
>>>True and 3/0
ZeroDivisionError: integer division or modulo by zero
or
>>>True or 3/0
True
>>>False or 3/0
ZeroDivisionError: integer division or modulo by zero
In SQL 2017 or higher, you can use this:
declare @hits int = 0
set @hits = (select value from STRING_SPLIT('F609,4DFA,8499',','));
select count(@hits)
Maybe it is too simplistic, but I used this solution and I find it very useful when I have a primary key that I can use to compare data sets. Hope it can help.
a1 <- data.frame(a = 1:5, b = letters[1:5])
a2 <- data.frame(a = 1:3, b = letters[1:3])
different.names <- (!a1$a %in% a2$a)
not.in.a2 <- a1[different.names,]
In my opinion, a dynamic PL/SQL block is somewhat obscure. While is very flexible, is also hard to tune, hard to debug and hard to figure out what's up. My vote goes to your first option,
EXECUTE IMMEDIATE v_query_str INTO v_num_of_employees USING p_job;
Both uses bind variables, but first, for me, is more redeable and tuneable than @jonearles option.
If it has a UI, it has an "API". Let's use the following example: I want to publish the pic I use in any new blog post I create. Let's assume is Wordpress.