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return statement Javascript

The Javascript return statement is used to return a value from a function. It terminates the function from further executing code, and returns a value to the caller.

function addNums(v1, v2) {

    return v1 + v2;

var sum = addNums(2, 3);


Here is an example using return false to disable the normal functionality of a link.

<a onclick="return false" href="">
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I use the following code to disable normal functionality of my link so that when I use it to enable my Javascript, the pound sign will not show up in the user address bar when they click my anchor element. Using return false as the value of the "onclick" event makes that possible.

<script type="text/javascript">
function jsFunction(){
    alert("This Javascript is enabled through an html anchor element.");
<a href="#" onclick="return false" onmousedown="jsFunction()">
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CSS Level 3 Properties is a growing educational system packed with video and written material that you can access 24/7 100% free. The focus here in 2014 is spread between five technologies: HTML, CSS, JavaScript, PHP and MySQL. Learn programming theory, database interaction, web design, animation, graphics editing, vector art, 3D modeling, and much more. The educational experience here is a hybrid one offering both high quality video tutorials and code libraries that grow more robust every day. The code libraries are being assembled so that developers can discover all of the building blocks of their favorite languages. The libraries coupled with high quality video tutorials will take you deep down the rabbit hole very quickly. You can also ask questions and get free advice at