關於setTimeout我來說兩句

關鍵點：
1、在類中如何使用setTiemout 注意代碼中var self = this.
2、使用setTimeout模擬setInterval
3、避免一些錯誤 如too much recursion
錯誤的代碼嘗試

var SnowSetTimeoutTest = function(){
    this.count = 0;
}
SnowSetTimeoutTest.prototype.testIt = function(){
    var self = this;
    alert(this.count++);
    /**
     *但是這個方法在FF下面提示too much recursion
     *setTimeout(self.testIt(),100); 
     *
     *下面也是兩個比較典型的調用錯誤
     *setTimeout("self.testIt()",3000);
     *setTimeout(self.testIt, 3000);
     */
}

正點的解法：

var SnowSetTimeoutTest = function(){
    this.count = 0;
}
SnowSetTimeoutTest.prototype.testIt = function(){
    var self = this;
    alert(this.count++);
    /**
     *但是這個方法在FF下面提示too much recursion
     *
     */
    setTimeout(setTimeout(function(){self.testIt()},3000);,100); 
}