15 lines
511 B
Markdown
15 lines
511 B
Markdown
### coalesceFactory
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Returns a customized coalesce function that returns the first argument that returns `true` from the provided argument validation function.
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Use `Array.find()` to return the first argument that returns `true` from the provided argument validation function.
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```js
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const coalesceFactory = valid => (...args) => args.find(valid);
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```
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```js
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const customCoalesce = coalesceFactory(_ => ![null, undefined, '', NaN].includes(_));
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customCoalesce(undefined, null, NaN, '', 'Waldo'); // "Waldo"
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```
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