javascript - I need to disorder an array -

hello need disorder array. tryed this:

var letras = ['a', 'e', 'i', 'o', 'u'];  function disorder(p){    for(i=0;i<100;i++){     pos = math.random()*p.length;     temp=p[pos];     p.splice(pos,1);     p.push(temp);   } } 

but doesnt work, , not sure memory efficient because of deletes.

you need integer index.

pos = math.random() * p.length | 0; 

the bitwise or cast value integer.

function disorder(p) {      var i, pos, temp;      (i = 0; < 100; i++) {          pos = math.random() * p.length | 0;          temp = p[pos];          p.splice(pos, 1);          p.push(temp);      }  }    var letras = ['a', 'e', 'i', 'o', 'u'], p = []    disorder(letras);  document.write('<pre>' + json.stringify(letras, 0, 4) + '</pre>');