regex – javascript regexp, can't get + expression to work

I am trying to pull the number from a string per the CSS format as follows:

str == \"50.1px\"

sz = str.match(/+([0-9]|\\.)/)

It complains about the + expression unless I escape it, but then then sz is null. If I remove the + it returns only the first digit. I\’m completely stumped.

Rating: 2 out of 5 based on 3 ratings

Posts Related to regex - javascript regexp, can't get + expression to work

• Jul 11th, 2012 javascript - Regular Expression: match hh:mm, hh.mm or h Wednesday AM 05:09:14


• Jul 14th, 2012 regex - javascript regular expression validation to force either to alpha characters or alpha numeric characters but no standalone numbers Saturday PM 15:01:56


• Jul 18th, 2012 regex - Phone number format javascript Wednesday AM 00:50:08


• Jul 23rd, 2012 regex - lookbehind in javascript? Monday PM 13:10:52


• Jul 11th, 2012 jquery - Parsing stuck-together json in javascript Wednesday AM 11:09:19


• Jul 17th, 2012 RegEx for maximum length in JavaScript Tuesday AM 11:40:18


• Jul 24th, 2012 regex - Live replacement for regular expressions with Javascript Tuesday AM 09:14:56


• Jul 09th, 2012 javascript - Regular expression to separate smileys from text Monday AM 07:34:06


• Jul 15th, 2012 jquery - How to add a second class in javascript using file url inside a directory? Sunday AM 10:52:27


• Jul 26th, 2012 javascript - converting html tags and the content to string Thursday PM 15:48:36

The post regex – javascript regexp, can't get + expression to work appeared first on Javascript ASK.

via Javascript ASK http://javascriptask.phpfogapp.com/regex-javascript-regexp-cant-get-expression-to-work.html