Re-mapping an array.

Can anyone show me how I can re-map an array using the following criteria.

For example I have two arrays:

arr1 = [201,188,123,140,172,142,85,731];
arr2 = [3,0,7,1,2,4];

Code (JavaScript):

I wish to create a new array using the values on arr2 as the indexes on arr1.
For example arr1[arr2[0]] would be 140 and so on.

Final output of the new array would [140,201,731,188,123,172];

For a small amount of numbers I could use push but arr1 and arr2 could potentially have a lot of numbers.

Thanks in advance.

 

Hi, I have managed to work it out myself - below is what I have done.

function myFunction(num) {
return num * 10;
}

arr1 = [201,188,123,140,172,142,85,731,73,92,104,23];
arr2 = [3,0,7,1,2,10];

arr3 = arr2.map(bbc);
document.write("*** "+arr3);

Code (JavaScript):

Cheers.