Javascript RegExp test fails

Question

I have problem with this regex:

(\\[|\\])[0-9]+,([0-9]+(\\[|\\])|inf\\])\\s?.*

Answer 1

When you use the RegExp construct, you need to double escape with your backslashes:

var rangeRegex = new RegExp("(\\[|\\])[0-9]+,([0-9]+(\\[|\\])|inf\\])\\s?.*");

Or use a literal one::

var rangeRegex = /(\[|\])[0-9]+,([0-9]+(\[|\])|inf\])\s?.*/;