Correct: `Array.from()` (it’s a static method) Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method) This patch uses the common `#` syntax to denote `.prototype.`.
18 lines
539 B
Markdown
18 lines
539 B
Markdown
### omit
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Omits the key-value pairs corresponding to the given keys from an object.
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Use `Object.keys(obj)`, `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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