JS合并数组的几种方法及优劣比较
本文属于JavaScript的基础技能.我们将学习结合/合并两个JS数组的各种常用方法,并比较各种方法的优缺点.
我们先来看看具体的场景:
varq=[5,5,1,9,9,6,4,5,8]; varb=["tie","mao","csdn","ren","fu","fei"];
很明显,数组q和b简单拼接的结果是:
[ 5,5,1,9,9,6,4,5,8, "tie","mao","csdn","ren","fu","fei" ]
concat(..)方法
最常见的用法如下:
varc=q.concat(b);
q;//[5,5,1,9,9,6,4,5,8] b;//["tie","mao","csdn","ren","fu","fei"];
c;//[5,5,1,9,9,6,4,5,8,"tie","mao","csdn","ren","fu","fei"]