javascript 在 lodash 中,`pairs()` 的反义词是什么?

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时间:2020-10-27 19:05:35  来源:igfitidea点击:

In lodash, what is the opposite of `pairs()`?

javascriptlodash

提问by jhohlfeld

I cant't see it in the docs - http://lodash.com/docs- please help me:

我在文档中看不到它 - http://lodash.com/docs- 请帮助我:

What is the opposite of _.pairs()? There must be one - I just cant' see where!

的反义词是_.pairs()什么?一定有一个——我就是看不到在哪里!

The goal is to produce key/value pairs from an array of the form [['key1':'value1'], ['key2':'value2'], ...]

目标是从表单的数组中生成键/值对 [['key1':'value1'], ['key2':'value2'], ...]

Not that I really need it a lib for that: I just like to re-use things..

并不是说我真的需要它一个库:我只是喜欢重复使用东西..

回答by Peter Majeed

I think you're looking for _.object/_.zipObject.

我认为您正在寻找_.object/ _.zipObject

http://lodash.com/docs#zipObject

http://lodash.com/docs#zipObject

"use strict";

var obj, pairs, objResult;

obj = {
    key1: "value1",
    key2: "value2"
};

pairs = _.pairs(obj);
objResult = _.object(pairs);

// The original object.
console.log(obj);
// The object as an array of arrays.
console.log(pairs);
// The array of arrays converted back to the original object.
console.log(objResult);

http://jsfiddle.net/HmDk6/

http://jsfiddle.net/HmDk6/

回答by Ricardo Stuven

Since version 4, _.fromPairs

从第 4 版开始, _.fromPairs

The inverse of _.toPairs; this method returns an object composed from key-value pairs.

的倒数_.toPairs;此方法返回由键值对组成的对象。

https://lodash.com/docs#fromPairs

https://lodash.com/docs#fromPairs