Replace string with values from two arrays

Question

I have a string for example:

var string = \'This is a text that needs to change\';

And then I have two arrays.

var array1 =         


        

Answer 1

This sets up 1 RegExp and calls replace only once.

var string = 'This is a text that needs to change';
var array1 = new Array('a', 'e', 'i', 'o', 'u');
var array2 = new Array('1', '2', '3', '4', '5');

var regex = new RegExp( '['+array1.join('')+']', 'g' );

var lookup = {}; // Setup a hash lookup
for( var i=0 ; i

http://jsfiddle.net/2twr2/