Variables in Regular Expressions

[jesh]

Ok, I know with regular expressions, I can replace all instances of a string within another string like this:

var string = "http://www.microsoft.com is the best site out there!  Don't you just love Microsoft?";var newstring = string.replace(/microsoft/gi, "W3Schools");document.write(newstring);

That works great. Everywhere (case-insensitive, btw) where you see "microsoft", "W3Schools" now appears. My question is, what if the string that I want to replace is a variable?

var replaceWord = "microsoft";var string = "http://www.microsoft.com is the best site out there!  Don't you just love Microsoft?";// how can I use string.replace() here to replace all instances// of whatever the value is of replaceWord?

EDIT:========================================Ah...Google to the rescue again. doh!Searching Google for "variables in regular expressions" returned this:http://www.webreference.com/js/column5/methods.htmlThis code works for me:

var replaceWord = "microsoft";var string = "http://www.microsoft.com is the best site out there!  Don't you just love Microsoft?";var regex = new RegExp(replaceWord, "gi");var newstring = string.replace(regex, "W3Schools");document.write(newstring);

I tried Google first, but it wasn't until I wrote this post that I was able to word my searching correctly. I answered it myself, go figure! Maybe the post will help someone else at least. heh.

[pulpfiction]

This google search solution reminds of an article "Is google God?"actually i dont remember which article it was but one of these...http://www.google.com/search?hl=en&q=is+google+God