splice方法便签

 1 //splice(起始位置，要删除的个数，要插入的数据)

 2     var colors = ["red", "green", "blue"];

 3     var removed = colors.splice(0, 1);

 4     console.log(colors);

 5     console.log(removed);

 6 

 7     removed = colors.splice(1, 0, "yellow", "orange");

 8     console.log(colors);

 9     console.log(removed);

 

     removed = colors.splice(1, 1, "red", "purple");

     console.log(colors);

     console.log(removed);

不知道为什么chrome下的console.log取到的值竟然和IE、Firefox不同。感觉是全局变量的问题，变量输出以后重新定义前木有删除前一次的值。alert下取值都相等。