25 lines
759 B
Markdown
25 lines
759 B
Markdown
---
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title: Group array into object
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type: snippet
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language: javascript
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tags: [array,object]
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cover: snowy-mountains
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dateModified: 2020-10-22T20:24:44+03:00
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---
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Associates properties to values, given array of valid property identifiers and an array of values.
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- Use `Array.prototype.reduce()` to build an object from the two arrays.
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- If the length of `props` is longer than `values`, remaining keys will be `undefined`.
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- If the length of `values` is longer than `props`, remaining values will be ignored.
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```js
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const zipObject = (props, values) =>
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props.reduce((obj, prop, index) => ((obj[prop] = values[index]), obj), {});
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```
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```js
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zipObject(['a', 'b', 'c'], [1, 2]); // {a: 1, b: 2, c: undefined}
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zipObject(['a', 'b'], [1, 2, 3]); // {a: 1, b: 2}
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```
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