Match dynamic string using regex

Question

I\'m trying to detect an occurrence of a string within string. But the code below always returns \"null\". Obviously something went wrong, but since I\'m a newbie, I can\'t

Answer 1

The right tool for this job is not regex, but String.indexOf:

var str = '32:width: 900px;',
    search = 'width',
    isInString = !(str.indexOf(search) == -1); 

// isInString will be a boolean. true in this case

Documentation: https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/String/indexOf