With JavaScript is it possible to detect the current version of JavaScript supported in the browser?

Question

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To tell Javascript version of your browser

I'm looking for something similar to navigator.userAgent but for the JavaScript version.

EDIT: I'm not asking that to perform feature detection. I'm digging more into JavaScript, and use my browsers' javascript consoles. I would like to know for each of my browsers if they support ECMAScript Edition 5 for instance.

Lol, no amount jQuery will help you much. Why are you trying to do this? — Blender, May 11 '11 at 17:46

score 2 · Answer 1 · edited May 23 '17 at 10:09

2

You can try something like this:

<script language="Javascript">var jsversion = 1.0;</script>
<script language="Javascript1.1"> jsversion = 1.1;</script>
<script language="Javascript1.2"> jsversion = 1.2;</script>
<script type=text/javascript>
    console.log("Your javascript version is " + jsversion );
</script>

Almost the same as Neal linked to...

edited May 23 '17 at 10:09

Community

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answered May 11 '11 at 17:50

jerone

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BEAT ME! hahaha, same post. good stuff +1 – slandau May 11 '11 at 17:50

score 1 · Accepted Answer · answered May 11 '11 at 17:52

1

There aren't reliable ways to do it

answered May 11 '11 at 17:52

Riccardo Galli

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With JavaScript is it possible to detect the current version of JavaScript supported in the browser?

2 Answers2