[英]Ramda - Convert array of objects into object
环顾四周,但找不到答案。
使用ramda
是否有更多声明性的方法来做到这ramda
?
R.reduce((acc, val) => {
acc[val.name] = val.value
return acc
}, {}, fields)
基本上,我正在转换一个如下所示的数组:
[
{ name: "firstName", value: "John" },
{ name: "lastName", value: "Doe" }
]
变成一个看起来像这样的对象:
{ firstName: "John", lastName: "Doe" }
将数组映射为[name, value]
对的数组,然后使用 R.fromPairs 将其转换为对象:
const { pipe, fromPairs, map, props } = R const fn = pipe(map(props(['name', 'value'])), fromPairs) const arr = [{ name: "firstName", value: "John" }, {name: "lastName", value: "Doe" }] const result = fn(arr) console.log(result)
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.1/ramda.min.js" integrity="sha512-rZHvUXcc1zWKsxm7rJ8lVQuIr1oOmm7cShlvpV0gWf0RvbcJN6x96al/Rp2L2BI4a4ZkT2/YfVe/8YvB2UHzQw==" crossorigin="anonymous"></script>
使用 vanilla JS,您可以通过映射数组、使用解构,然后使用Object.fromEntries()
转换为对象来创建对(条目)的数组:
const fn = arr => Object.fromEntries(arr.map(({ name, value }) => [name, value])) const arr = [{ name: "firstName", value: "John" }, {name: "lastName", value: "Doe" }] const result = fn(arr) console.log(result)
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