[removed] sort objects

Question

function Player() {
  var score;

  this.getScore = function() { return score; }
  this.setScore = function(sc) { score = sc; }
}

function compare(playerA, playerB)         


        

Answer 1

It's probably because you don't have any "array values" inside your array - textual indexes are not regarded as array values but as object propertiest (arrays are "objects in disguise" in javascript). You can add as many properties to any object but array specific methods like sort take only "real" array members as their parameteres (i.e. only with numerical indexes)

var arr = new Array()
arr[0] = 1
arr[1] = 2
arr["textual_index"] = 3
alert(arr.length);

The last line alerts "2" not "3" since there are only two values with numeric indexes.