javascript - 如何在Node.js中复制数组的元素？

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How to duplicate elements in a js array?

(11个答案)


去年关闭。




所以我想复制数组元素，例如:

var array = ["chicken","nugget","good"];

变成:

var array2 = ["chicken","chicken","nugget","nugget","good","good"];

怎么做呢？

最佳答案

惯用的方式是:

["chicken","nugget","good"].flatMap((x) => [x, x]);

请注意，并非所有的javascript环境都提供flatMap，因此可能需要进行翻译。

关于javascript - 如何在Node.js中复制数组的元素？ ，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/58513242/