8ee50178f3
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
295 B
Markdown
14 lines
295 B
Markdown
### coalesce
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Returns the first non-null/undefined argument.
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Use `Array.prototype.find()` to return the first non `null`/`undefined` argument.
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```js
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const coalesce = (...args) => args.find(_ => ![undefined, null].includes(_));
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```
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```js
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coalesce(null, undefined, '', NaN, 'Waldo'); // ""
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```
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