[JS] Using Array.prototype.sort

sort.js

var numbers = [0,1,2,-2,-1];

console.log('Default: ' + numbers.sort());


function asc(a, b) {
  return a-b;
}

function desc(a, b) {
  return (a-b) * -1;
}

console.log('ASC: ' + numbers.sort(asc));
console.log('DESC: ' + numbers.sort(desc));