Question

I have a JavaScript array that can be built using this code

var Test = [];
Test.push([3, 2]);
Test.push([5, 7]);
Test.push([8, 1]);
Test.push([4, 10]);

What I need to do is change the first value in each item to be in order from 0, the result should look like this:

[0, 2]
[1, 7]
[2, 1]
[3, 10]

I will also accept a jQuery answer.

Answer 1

for (var i=0, l=Test.length; i<l; i++){
    Test[i][0] = i;
}