javascript实现类似java中getClass()得到对象类名的方法_javascript技巧

var getObjectClass = function (obj) { if (obj && obj.constructor && obj.constructor.toString()) { /* * for browsers which have name property in the constructor * of the object,such as chrome */ if(obj.constructor.name) { return obj.constructor.name; } var str = obj.constructor.toString(); /* * executed if the return of object.constructor.toString() is * "[object objectClass]" */ if(str.charAt(0) == '[') { var arr = str.match(/\[\w+\s*(\w+)\]/); } else { /* * executed if the return of object.constructor.toString() is * "function objectClass () {}" * for IE Firefox */ var arr = str.match(/function\s*(\w+)/); } if (arr && arr.length == 2) { return arr[1]; } } return undefined; };