Regular Expression to get a string between parentheses in Javascript

Question

I am trying to write a regular expression which returns a string which is between parentheses. For example: I want to get the string which resides between the strings \"(\"

Answer 1

Ported Mr_Green's answer to a functional programming style to avoid use of temporary global variables.

var matches = string2.split('[')
  .filter(function(v){ return v.indexOf(']') > -1})
  .map( function(value) { 
    return value.split(']')[0]
  })