let type = function(t) { ?var p = ({}).toString.call(t); ?var typeObj = { ???"[object Object]": "Object", ???"[object Array]": "Array", ???"[object Number]": "Number", ???"[object String]": "String", ???"[object Function]": "Function", ???"[object Boolean]": "Boolean", ???"[object Null]": ‘Null‘, ???"[object Undefined]": "Undefined" ?} ?return typeObj[p] ? typeObj[p] : false;};
js ?检测变量类型
原文地址：http://www.cnblogs.com/bigman-bugman/p/8078582.html