How Do I Pre-sort Numbers And Not Screw Up The Formatting?

I have a custom function I am writing that will return an array of arrays: function tester(col){ var rows = [ // this gives me an error on sorting, so turn numbers to strings

Solution 1:

UPDATE

Since you want to sort by number if they are numbers, and by string if they are strings, you can do:

function tester(col){
  var rows = [
    [4,2,3,"Tom"],
    [0,8,9,"Bill"],
    [5,7,1,"Bob"],
    [1,2,3,"Charlie"]
  ];

  rows.sort(function(a, b) {
    if (typeof a[col] === 'number')
      return a[col] > b[col];
    return a[col].localeCompare(b[col]);
  });

  return rows;
}