zoukankan
html css js c++ java
js中知识点
1.push
push() 方法可向数组的末尾添加一个或多个元素，并返回新的长度。
2. concat() 方法用于连接两个或多个数组
该方法不会改变现有的数组，而仅仅会返回被连接数组的一个副本
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原文地址：https://www.cnblogs.com/wenyan/p/13546381.html
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