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How can I check whether a option already exist in select by JQuery
...it already exists:
$("#yourSelect option[value='yourValue']").length > 0;
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What's the best way to retry an AJAX request on failure using jQuery?
... url : 'someurl',
type : 'POST',
data : ....,
tryCount : 0,
retryLimit : 3,
success : function(json) {
//do something
},
error : function(xhr, textStatus, errorThrown ) {
if (textStatus == 'timeout') {
this.tryCount++;
if (thi...
How to remove duplicate values from a multi-dimensional array in PHP
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answered Jun 3 '09 at 18:12
daveilersdaveilers
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Catching an exception while using a Python 'with' statement
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answered Apr 3 '09 at 13:04
Douglas LeederDouglas Leeder
47.7k88 gold badges8484 silver badges127127 bronze badges
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Get name of current script in Python
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edited Apr 30 at 13:22
answered Nov 11 '10 at 9:35
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Are delphi variables initialized with a value by default?
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10 Answers
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Create and append dynamically
...= 'block';
iDiv.className = 'block';
document.getElementsByTagName('body')[0].appendChild(iDiv);
// Now create and append to iDiv
var innerDiv = document.createElement('div');
innerDiv.className = 'block-2';
// The variable iDiv is still good... Just append to it.
iDiv.appendChild(innerDiv);
htt...
Benefits of using the conditional ?: (ternary) operator
...ithout sacrificing readability.
Good example:
int result = Check() ? 1 : 0;
Bad example:
int result = FirstCheck() ? 1 : SecondCheck() ? 1 : ThirdCheck() ? 1 : 0;
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How can I get the sha1 hash of a string in node.js?
...pto.createHash('sha1')
shasum.update('foo')
shasum.digest('hex') // => "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33"
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Android - Camera preview is sideways
...E)).getDefaultDisplay();
if(display.getRotation() == Surface.ROTATION_0) {
parameters.setPreviewSize(height, width);
mCamera.setDisplayOrientation(90);
}
if(display.getRotation() == Surface.ROTATION_90) {
parameters.setPreviewSize(widt...