23 lines
490 B
Markdown
23 lines
490 B
Markdown
---
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title: pluck
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tags: array,object,beginner
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---
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Converts an array of objects into an array of values corresponding to the specified `key`.
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- Use `Array.prototype.map()` to map the array of objects to the value of `key` for each one.
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```js
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const pluck = (arr, key) => arr.map(i => i[key]);
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```
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```js
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const simpsons = [
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{ name: 'lisa', age: 8 },
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{ name: 'homer', age: 36 },
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{ name: 'marge', age: 34 },
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{ name: 'bart', age: 10 },
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];
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pluck(simpsons, 'age'); // [8, 36, 34, 10]
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```
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