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What is the difference between object keys with quotes and without quotes?
...fference (unless, as you noted, you want to use a key that’s not a valid JavaScript identifier).
As a side note, the JSON data exchange format does require double quotes around identifiers (and does not allow single quotes).
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typeof for RegExp
Is there anyway to detect if a JavaScript object is a regex?
8 Answers
8
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JSHint and jQuery: '$' is not defined
... this should be the accepted answer. polluting EVERY SINGLE javascript FILE in your project with various lines of code to make the a syntax checker happy is not an option. Thanks wmil
– Cosmin
Feb 24 '15 at 21:32
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WARNING: Can't verify CSRF token authenticity rails
...; to print out the token directly in your rails code. You dont need to use javascript to search the dom for the csrf token as other posts mention. just add the headers option as below;
$.ajax({
type: 'post',
data: $(this).sortable('serialize'),
headers: {
'X-CSRF-Token': '<%= form_auth...
HTML button to NOT submit form
...ton" to the <button> - that way it behaves properly even without any JavaScript.
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Bootstrap 3 modal vertical position center
... have support using this CSS property, however for general suporte can use JavaScript to set the margins.
– Walter Chapilliquen - wZVanG
Apr 4 '15 at 23:22
21
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How to implement history.back() in angular.js
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Or you can simply use javascript code :
onClick="javascript:history.go(-1);"
Like:
<a class="back" ng-class="icons">
<img src="../media/icons/right_circular.png" onClick="javascript:history.go(-1);" />
</a>
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Testing whether a value is odd or even
...d(n) {
return Math.abs(n % 2) == 1;
}
You can check that any value in Javascript can be coerced to a number with:
Number.isFinite(parseFloat(n))
This check should preferably be done outside the isEven and isOdd functions, so you don't have to duplicate error handling in both functions.
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On a CSS hover event, can I change another div's styling? [duplicate]
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css not jquery (or javascript).
– David says reinstate Monica
Aug 2 '11 at 9:45
1
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What is jQuery Unobtrusive Validation?
...o shown very nicely in this Pluralsight video in the section on " AJAX and JavaScript".
Basically, it is simply Javascript validation that doesn't pollute your source code with its own validation code. This is done by making use of data- attributes in HTML.
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