18 lines
474 B
Markdown
18 lines
474 B
Markdown
---
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title: pick
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tags: object,intermediate
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---
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Picks the key-value pairs corresponding to the given keys from an object.
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- Use `Array.prototype.reduce()` to convert the filtered/picked keys back to an object with the corresponding key-value pairs if the key exists in the object.
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```js
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const pick = (obj, arr) =>
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arr.reduce((acc, curr) => (curr in obj && (acc[curr] = obj[curr]), acc), {});
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```
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```js
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pick({ a: 1, b: '2', c: 3 }, ['a', 'c']); // { 'a': 1, 'c': 3 }
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```
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