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How does Access-Control-Allow-Origin header work?
...d that Site A is allowed to access this page, the browser will trigger the XMLHttpRequest's error event and deny the response data to the requesting JavaScript code.
Non-simple requests
What happens on the network level can be slightly more complex than explained above. If the request is a "non-s...
Color picker utility (color pipette) in Ubuntu [closed]
...Graphics -> GPick
It has many more features than gcolor2 but is still extremely simple to use: click on one of the hex swatches, move your mouse around the screen over the colours you want to pick, then press the Space bar to add to your swatch list.
If that doesn't work, another way is to clic...
Regex - Should hyphens be escaped? [duplicate]
Hyphen is a special character in regex, for instance, to select a range, I could do something like:
3 Answers
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What is Objective C++? [closed]
What is Objective C++ and can I use this language in Xcode?
3 Answers
3
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
(Related to this question, EF4: Why does proxy creation have to be enabled when lazy loading is enabled? ).
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Fix code indentation in Xcode
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Before Xcode 9 (for Xcode 9 see default shortcut below)
select text
right-click
there's a "Re-indent selection" item in popup menu
In XCode 4 there is one more step:
select text
right-click
Click on "Structure"
there's a "...
How to resize Image in Android?
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Capture the image and resize it.
Bitmap image2 = (Bitmap) data.getExtras().get("data");
img.setImageBitmap(image2);
String incident_ID = IncidentFormActivity.incident_id;
imagepath="/sdcard/RDMS/"+incident_ID+ x + ".PNG";
File file = new File(imagepath);
try {
double xFactor = 0...
How to center a WPF app on screen?
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xaml
WindowStartupLocation="CenterScreen"
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How do I strip all spaces out of a string in PHP? [duplicate]
...or me is non-breaking spaces. I had to use this: $string = preg_replace('~\x{00a0}~','',$string); to remove them. Thanks to this stackoverflow answer: stackoverflow.com/a/12838189/631764
– Buttle Butkus
Jul 19 '13 at 0:04
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Remove all multiple spaces in Javascript and replace with single space [duplicate]
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You could use a regular expression replace:
str = str.replace(/ +(?= )/g,'');
Credit: The above regex was taken from Regex to replace multiple spaces with a single space
s...