javascript 伪数组转化为数组
(function(){
console.log(arguments instanceof Array); // false
var argsArray = Array.prototype.slice.call(arguments);
console.log(argsArray instanceof Array); // true
}());
(function(){
console.log(arguments instanceof Array); // false
var argsArray = Array.prototype.slice.call(arguments);
console.log(argsArray instanceof Array); // true
}());