Using return JS

Question

What for using return in such situations?

<div class="s" onclick="return goNav();">click</div>

What is difference?

<div class="s" onclick="goNav();">click</div>

Both variants work

Or:

window.onload = function() {
    var linkWithAlert = document.getElementById("alertLink");
    linkWithAlert.onclick = function() {
        return confirm('Вы уверены?');
    };
};

If the goNav function returns false then the default click action will be canceled, which doesn't mean much on a div element but it could on an anchor. — Jasper
– Jasper, Commented Sep 12, 2013 at 17:35

Jakub Kotrs · Accepted Answer · 2013-09-12 17:37:26Z

2

The return of onclick can be false. In that case, the default onclick action wouldn't be triggered:

<a href="http://stackoverflow.com/" onclick="return confirm('Really?')">Go to SO</a>
<a href="http://stackoverflow.com/" onclick="confirm('Really?')">Go to SO</a>

In the first case, if you click on No, you're not redirected, in the second case, you are. That means that without using return you can trigger your function without breaking the browser`s default.

answered Sep 12, 2013 at 17:37

Jakub Kotrs

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