Javascript String.replace with dynamic regular expressions?

Question

I have the following code, which works, but I need to inject some different stuff into the regular expression object (regex2) at runtime. However, text.replace

Answer 1

Addition to CMS: The RegExp constructor has an second optional parameter flags
(15.10.4 The RegExp Constructor)

var text = "This is a Test.";

var myRegExp = new RegExp('teST','i');

text.replace(myRegExp,'Example');
// -> "This is a Example."

as Flags you can set

• g -> global search (all occurrences)
• i -> case insensitive
• m -> multiline