Js数组去重

Array.prototype.unique1 = function(){  var res = [this[0]];  for(var i = 1; i < this.length; i++){  var repeat = false;  for(var j = 0; j < res.length; j++){   if(this[i].pyconobj == res[j].pyconobj){    repeat = true;    break;   }  }  if(!repeat){   res.push(this[i]);  } } return res;}