type（）

function type(target) {
	var ret = typeof(target);
	var template = {
	"[object Array]" : "array",
	"[object Object]" : "object",
	"[object Number]" : "number - object",
	"[object Boolean]" : "boolean - object",
	"[object String]" : "string - object",
	}
	if(target === null){
			return "null";
	}
	if(ret == "object") {
		var str = Object.prototype.toString.call(target);
		return template[str];
	}else{
		return ret;
	}
}