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Update and rename coalesce-factory.md to coalesceFactory.md

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Angelos Chalaris
2017-12-18 12:15:36 +02:00
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snippets/coalesce-factory.md
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### Coalesce factory
Returns a customized coalesce function that returns the first argument
that returns true from the provided argument validation function.
```js
const coalesceFactory = valid => (...args) => args.find(valid)
// const customCoalesce = coalesceFactory(_ => ![null, undefined, "", NaN].includes(_))
// customCoalesce(undefined, null, NaN, "", "Waldo") //-> "Waldo"
```

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