Selection sort implemented with Javascript.

selectionSort.js

var selectionSort = function(array) {
  for(var i=0, length=array.length; i<length; i+=1) {
    var min_i = i;
    for(var j=i+1; j<length; j+=1) {
      if (array[j] < array[min_i]) {
        min_i = j;
      }
    }
    var small = array[min_i];
    array[min_i] = array[i];
    array[i] = small;
  }
  return array;
};

console.log(selectionSort([8,4,3,7,6,5,2,1]));