Browser JavaScript version [duplicate]

Question

This question already has answers here:

Support of different Javascript versions in browsers (2 answers)

Closed 12 years ago.

How could I know which version of JS is running my browser? I'd like a simple script. And also that what are the main differences between 1.6 and 1.7 versions?

• bfavaretto: Those versions are a Mozilla-only thing. You should test for the existence of specific features you need instead.
• alexP: You can use this answer

Answer 1

You can use this code

<script language="javascript">var js_version="1.0"</script>
<script language="javascript1.1">var js_version="1.1"</script>
<script language="javascript1.2">var js_version="1.2"</script>
<script language="javascript1.3">var js_version="1.3"</script>
<script language="javascript1.4">var js_version="1.4"</script>
<script language="javascript1.5">var js_version="1.5"</script>
<script language="javascript1.6">var js_version="1.6"</script>

And then to detect the version -

<script language="javascript">
 document.write(js_version); 
</script>

• joan: Great. Just what I needed !