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How can I concatenate regex literals in JavaScript?
...ible, and you do not need escape quotes or double-escape backlashes. From "Javascript Patterns", Stoyan Stefanov 2010.
But using New may be the only way to concatenate.
I would avoid eval. Its not safe.
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Check if an array contains any element of another array in JavaScript
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lodash is much more readable then vanilla Javascript, libs like it at Ramda should always be used instead of vanilla imho. Better for all devs...
– Leon Gaban
Aug 15 '16 at 20:32
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How can I get query string values in JavaScript?
...riginal
You don't need jQuery for that purpose. You can use just some pure JavaScript:
function getParameterByName(name, url) {
if (!url) url = window.location.href;
name = name.replace(/[\[\]]/g, '\\$&');
var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),
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Can I use twitter bootstrap without jquery?
...f you use just the CSS part of it, you won't need jQuery.
If you use the Javascript plugins you need jQuery, since they are jQuery plugins.
v3: http://getbootstrap.com/javascript/
v4: https://getbootstrap.com/docs/4.0/getting-started/javascript/
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Can I set the height of a div based on a percentage-based width? [duplicate]
...CSS hack (see the other answers), but it can also be done very easily with JavaScript.
Set the div's width to (for example) 50%, use JavaScript to check its width, and then set the height accordingly. Here's a code example using jQuery:
$(function() {
var div = $('#dynamicheight');
v...
Javascript split regex question
hello I am trying what I thought would be a rather easy regex in Javascript but is giving me lots of trouble.
I want the ability to split a date via javascript splitting either by a '-','.','/' and ' '.
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Use JavaScript to place cursor at end of text in text input element
...ay) to place the cursor at the end of the text in a input text element via JavaScript - after focus has been set to the element?
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Image resizing client-side with JavaScript before upload to the server
I am looking for a way to resize an image client-side with JavaScript (really resize, not just change width and height).
I know it's possible to do it in Flash but I would like to avoid it if possible.
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How do you overcome the HTML form nesting limitation?
...le if/else to check what button was clicked.
And then I would implement a Javascript call tying into the form's onsubmit event which would check before the form was submitted, and only submit the relevant data to the server (possibly through a second form on the page with the ID needed to process t...
How to launch jQuery Fancybox on page load?
... it to a hidden anchor tag and fire the click event of that anchor tag via JavaScript, but I would rather just launch the Fancybox directly and avoid the extra anchor tag.
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