Is there a way I can modify the URL of the current page without reloading the page?  I would like to access the portion before the # hash if possible.  I only need to change the portion after the domain, so it's not like I'm violating cross...

How can I change a class of an HTML element in response to an onclick event using JavaScript?...

The following are two methods of building a link that has the sole purpose of running JavaScript code. Which is better, in terms of functionality, page load speed, validation purposes, etc.?    function myJsFunc() {     alert("myJsFunc"); }...

This question already has an answer here:                           $(document).ready equivalent without jQuery                                      33 answers                                     Okay, this might just be a silly quest...

I’m using JavaScript to pull a value out from a hidden field and display it in a textbox. The value in the hidden field is encoded.  For example,  <input id='hiddenId' type='hidden' value='chalk &amp; cheese' />...

What is the reason browsers do not correctly recognize:  <script src="foobar.js" /> <!-- self-closing script element -->   Only this is recognized:  <script src="foobar.js"></script>   Does this break the con...

I need to check the checked property of a checkbox and perform an action based on the checked property using jQuery.  For example, if the age checkbox is checked, then I need to show a textbox to enter age, else hide the textbox.  But the following...

Is there an easy way to take a string of html in JavaScript and strip out the html?...

Note:      The answers & comments below reflect the state of legacy browsers in 2009. Now you can actually set the value of the file input element dynamically/programatically using JavaScript and a dataTransfer or FileList object in 2017....

Is there a quick way to set an HTML text input (<input type=text />) to only allow numeric keystrokes (plus '.')?...