Java Script
JavaScript (not to be confused with Java) is a high-level, dynamic, multi-paradigm, weakly-typed language used for both client-side and server-side scripting. Its primary use is in rendering and allowing manipulation of web pages. Use this tag for questions regarding ECMAScript and its various dialects/implementations (excluding ActionScript and Google-Apps-Script).
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Where should I put <script> tags in HTML markup?
When embedding JavaScript in an HTML document, where is the proper place to put the <script> tags and in
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Convert form data to JavaScript object with jQuery
How do I convert all elements of my form to a JavaScript object? I'd like to have some way of automatic
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What is the best way to detect a mobile device?
Is there a way to detect whether or not a user is using a mobile device in jQuery? Something similar to the CS
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How to move an element into another element?
I would like to move one DIV element inside another. For example, I want to move this (including all children)
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Preview an image before it is uploaded
I want to be able to preview a file (image) before it is uploaded. The preview action should be executed all
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Abort Ajax requests using jQuery
Is it possible that using jQuery, I cancel/abort an Ajax request that I have not yet received the response fro
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Get current URL with jQuery?
I am using jQuery. How do I get the path of the current URL and assign it to a variable? Example URL: http:/
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$(document).ready equivalent without jQuery
I have a script that uses $(document).ready, but it doesn't use anything else from jQuery. I'd like
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Get the size of the screen, current web page and browser window
How can I get windowWidth, windowHeight, pageWidth, pageHeight, screenWidth, screenHeight, pageX, pageY, scree
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How to get the children of the $(this) selector?
I have a layout similar to this: <div id="..."><img src="..."></div> and would like to us
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How can I determine if a variable is 'undefined' or 'null'?
How do I determine if variable is undefined or null? My code is as follows: var EmpName = $("div#esd-names d
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Get selected text from a drop-down list (select box) using jQuery
How can I get the selected text (not the selected value) from a drop-down list in jQuery?
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.prop() vs .attr()
So jQuery 1.6 has the new function prop(). $(selector).click(function(){ //instead of: this.getAttrib
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Disable/enable an input with jQuery?
$input.disabled = true; or $input.disabled = "disabled"; Which is the standard way? And, conversely, how
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Scroll to an element with jQuery
I have this input element: <input type="text" class="textfield" value="" id="subject" name="subject"> T
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Add table row in jQuery
What is the best method in jQuery to add an additional row to a table as the last row? Is this acceptable? $
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How do I detect a click outside an element?
I have some HTML menus, which I show completely when a user clicks on the head of these menus. I would like to
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Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not?
Mod note: This question is about why XMLHttpRequest/fetch/etc. on the browser are subject to the Same Access
