Shuffle an Array in 1 line, 108 bytes of JavaScript

shuffle.js

function shuffle(set){
  for (var c=set.slice(0),o=[],m=Math; c.length > 0; o.push(c.splice(m.floor(m.random() * c.length), 1)[0]));
  return o;
}

with (Math)
  for (
    // c becomes shallow copy of array
    // o is output
    var c=set.slice(0),o=[];
    
    c.length > 0;
    
    // slice random entry from c, push it to o (splice always returns arrays, so push its first indice)
    o.push(c.splice(floor(random() * c.length), 1)[0])
  );