9 lines
235 B
Markdown
9 lines
235 B
Markdown
### Object from key-value pairs
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Use `Array.reduce()` to create and combine key-value pairs.
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```js
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const objectFromPairs = arr => arr.reduce((a,v) => (a[v[0]] = v[1], a), {});
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// objectFromPairs([['a',1],['b',2]]) -> {a: 1, b: 2}
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```
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