23 lines
653 B
Markdown
23 lines
653 B
Markdown
---
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title: omit
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tags: object,intermediate
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firstSeen: 2018-01-19T13:14:46+02:00
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lastUpdated: 2020-10-21T21:54:53+03:00
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---
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Omits the key-value pairs corresponding to the given keys from an object.
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- Use `Object.keys()`, `Array.prototype.filter()` and `Array.prototype.includes()` to remove the provided keys.
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- Use `Array.prototype.reduce()` to convert the filtered keys back to an object with the corresponding key-value pairs.
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```js
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const omit = (obj, arr) =>
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Object.keys(obj)
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.filter(k => !arr.includes(k))
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.reduce((acc, key) => ((acc[key] = obj[key]), acc), {});
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```
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```js
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omit({ a: 1, b: '2', c: 3 }, ['b']); // { 'a': 1, 'c': 3 }
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```
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