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Access parent URL from iframe
...xample.com/mypage.php"
Well, instead of HTML to specify the iframe, use a javascript to build the HTML for your iframe, get the parent url through javascript "at build time", and send it as a url GET parameter in the querystring of your src target, like so:
<script type="text/javascript">
...
Is an empty href valid?
...s valid.
However, standard practice is to use href="#" or sometimes href="javascript:;".
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How to get multiple select box values using jQuery?
...t;
JQuery Code:
$('#multiple :selected').each(function(i, sel){
alert( $(sel).val() );
});
Hope it works
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Sort array by firstname (alphabetically) in Javascript
... below for one object in the array) that I need to sort by firstname using JavaScript.
How can I do it?
21 Answers
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Number.sign() in javascript
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Should this not support JavaScript’s (ECMAScript’s) signed zeroes? It seems to work when returning x rather than 0 in the “megafast” function:
function sign(x) {
return typeof x === 'number' ? x ? x < 0 ? -1 : 1 : x === x ? x : NaN :...
How to export JavaScript array info to csv (on client side)?
...know there are lot of questions of this nature but I need to do this using JavaScript. I am using Dojo 1.8 and have all the attribute info in array, which looks like this:
...
How to check null objects in jQuery
...e will look something like this -
if ($("#btext" + i).length){
//alert($("#btext" + i).text());
$("#btext" + i).text("Branch " + i);
}
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How does one capture a Mac's command key via JavaScript?
How does one capture a Mac's Cmd key via JavaScript?
7 Answers
7
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How do I remove a property from a JavaScript object?
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Objects in JavaScript can be thought of as maps between keys and values. The delete operator is used to remove these keys, more commonly known as object properties, one at a time.
var obj = {
myProperty: 1
}
console.log(ob...
How can I rethrow an exception in Javascript, but preserve the stack?
In Javascript, suppose I want to perform some cleanup when an exception happens, but let the exception continue to propagate up the stack, eg:
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