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Variable: first()

const first: <Value>(iterable) => Optional<Value>

Defined in: splices.d.ts:469

Returns an iterable containing the first value of iterable, or an empty iterable if iterable is empty.

Type Parameters​

Value​

Value

Parameters​

iterable​

Iterable<Value>

Returns​

Optional<Value>

Example​

import { first, or, pipe } from 'lfi'

console.log(
  pipe(
    [`sloth`, `lazy`, `sleep`],
    first,
    or(() => `empty`),
  ),
)
//=> sloth

console.log(
  pipe(
    [],
    first,
    or(() => `empty`),
  ),
)
//=> empty
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Since​

v0.0.1