[AS3]as3中splice和slice的用法介绍说明

最新推荐文章于 2019-07-27 07:06:13 发布

转载最新推荐文章于 2019-07-27 07:06:13 发布 · 284 阅读

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原文链接：http://www.cnblogs.com/dt1991/p/4648407.html

本文详细介绍了JavaScript中splice和slice方法的功能、用法及示例，包括删除数组一段连续的元素、获取数组中的部分元素等核心内容。

splice

删除数组一段连续的元素，返回被删除的元素数组

var arr:Array = ["a","b","c","d","e","f","g"];  
arr.splice(删除点的索引,要删除的个数,新元素1,新元素2);  
arr.splice(2,3,"o","p","q");//从索引为2开始，删除3个元素，并插入3个新元素"o","p","q" 
arr.splice(-2,3,"o","p","q");//从倒数为2的索引开始，删除3个元素，并插入3个新元素"o","p","q" 
arr.splice(2,3);//cuplayer.com提示：单纯的删除从索引2开始的3个元素(不插入)  
arr.splice(2);//cuplayer.com提示：单纯的删除从索引2开始的所有元素(不插入)  
arr.splice(2,0,"x","y","z");//在索引2的后面插入3个新元素(不删除)

slice

获取数组中的部分元素

var arr:Array = ["a","b","c","d","e","f","g"];  
var newArr:Array = arr.slice();//浅复制数组  
var newArr:Array = arr.slice(2);  
var newArr:Array = arr.slice(-2);  
var newArr:Array = arr.slice(2,5);

文章出处：http://www.cuplayer.com/player/PlayerCodeAs/2012/1106544.html

转载于:https://www.cnblogs.com/dt1991/p/4648407.html