setTimeout传递参数

window.SetTimeout = function (callback, millisec, param) {
            var args = Array.prototype.slice.call(arguments, 2);
            return setTimeout(function () {
                callback.apply(null, args);
            }, millisec);
        };

        for (var i = 0; i < 5; i++) {
            SetTimeout(function (a) {
                console.log(a.v);
            }, 1000, { "v": i });
        }

 

转载于:https://www.cnblogs.com/jiang_zheng/p/5168468.html