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x/rambda/maybe-spec.ts

Faster and smaller alternative to Ramda
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import {maybe} from 'rambda'
const foo: any = {a: 1}
describe('R.maybe', () => { it('happy', () => { const ifRule = true const result = maybe(ifRule, foo.b ? 1 : 2, 3)
result // $ExpectType 1 | 2 | 3 }) it('can explicitly pass a type', () => { const ifRule = true const result = maybe<number>(ifRule, () => foo.b ? 1 : 2, 3)
result // $ExpectType number }) it('ifRule is a function', () => { const ifRule = () => true const result = maybe(ifRule, () => foo.b ? 1 : 2, 3)
result // $ExpectType 1 | 2 | 3 }) it('all inputs are functions', () => { const ifRule = () => true const result = maybe( ifRule, () => foo.b ? 1 : 2, () => 3 )
result // $ExpectType number })})