f2e5e26af3
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.`.
14 lines
322 B
Markdown
14 lines
322 B
Markdown
### compact
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Removes falsey values from an array.
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Use `Array.prototype.filter()` to filter out falsey values (`false`, `null`, `0`, `""`, `undefined`, and `NaN`).
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```js
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const compact = arr => arr.filter(Boolean);
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```
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```js
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compact([0, 1, false, 2, '', 3, 'a', 'e' * 23, NaN, 's', 34]); // [ 1, 2, 3, 'a', 's', 34 ]
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```
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