javascript regex to get tag attribute value

Question

I am using below regex to find the content of title tag in a given string:

alert("<title  >kjkj</title><title>jjjjj</title>".match(/<title[^>]*>([^<]+)</title>/)[1]);

Next I want to find the content of meta property="og:title" :

<meta property="og:title" content="The Rock" /> is a string

I have no clue how to do that. I can't use jQuery or create any DOM element. Its pure a string and i have to work on a given string only

Answer 1

Ok, no DOM, here is the regex:

/content="([A-Za-z0-9 _]*)"/

And if for some reason there are other content attributes in the string that you don't want to match you can just be more specific:

/metasproperty="og:title"scontent="([A-Za-z0-9 _]*)"/

This is a very helpful site where it is easy to test regexes of different types.