@putout/plugin-apply-maybe [![NPM version][NPMIMGURL]][NPMURL]

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[NPMURL]: https://npmjs.org/package/@putout/plugin-apply-maybe"npm"

🐊Putout plugin helps with maybe monad. Depends on @putout/declare. Renamed to @putout/plugin-maybe.

Install

``
npm i @putout/plugin-apply-maybe -D
`

Rules

`json
{
"rules": {
"apply-maybe/array": "on",
"apply-maybe/empty-array": "on",
"apply-maybe/fn": "on"
}
}
`

array

$3

`js
const array = isArray(a) ? a : [a];
`

$3

`js
const maybeArray = (a) => isArray(a) ? a : [a];
const array = maybeArray(a);
`

empty-array

$3

`js
const array = !a ? [] : a;
`

$3

`js
const maybeArray = (a) => !a ? [] : a;
const array = maybeEmptyArray(a);
`

fn

$3

`js
const fn = isFn(a) ? a : () => {};
`

$3

`js
const noop = () => {};
const maybeFn = isFn(a) ? a : noop;
const fn = maybeFn(a);
`

noop

$3

`js
const fn = f || (() => {});
`

$3

`js
const noop = () => {};
const fn = fn || noop;
``

License

MIT