JavaScript - 内置函数删除对象中的多个键？ [英] JavaScript - Built in Function to Delete Multiple Keys in an Object?

问题描述

在JavaScript中，我可以删除对象的键

In JavaScript, I can delete an object's key with

删除myObject [myKey];

有时，我需要删除相当多的键，但不能删除父键中用于封装我想要删除的键的所有值。

Sometimes, I need to delete quite a few keys, but not all of the values in the parent key that encapsulate the keys I want to delete.

有没有一种有效的方法可以使用一行删除多个密钥？看起来像：

Is there an efficient way to delete multiple keys using one line? Something that looks like:

multiDelete myObject [keyOne，keyTwo，keyThree];

推荐答案

这是一个类似于你要求的单行。

Here's a one-liner similar to what you're requesting.

var obj = {a: 1, b: 2, c: 3, d: 4, e: 5 };

['c', 'e'].forEach(e => delete obj[e]);

// obj is now {a:1, b:2, d:4}

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