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

for(var x = 0 ; x < array1.length; x++)
    string = string.replace(new RegExp(array1[x], "g"), array2[x])

FIDDLE