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Function: findLast()

Returns an iterable containing the last value of iterable for which fn returns a truthy value. Otherwise, returns an empty iterable.

Example​

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

console.log(
  pipe(
    [`sloth`, `lazy`, `sleep`],
    findLast(word => word.includes(`s`)),
    or(() => `not found!`),
  ),
)
//=> sleep

console.log(
  pipe(
    [`sloth`, `lazy`, `sleep`],
    findLast(word => word.includes(`x`)),
    or(() => `not found!`),
  ),
)
//=> not found!
Playground

Since​

v0.0.1

Call Signature​

findLast<Value>(fn): (iterable) => Optional<Value>

Type Parameters​

• Value

Parameters​

fn​

(value) => unknown

Returns​

Function

Parameters​

iterable​

Iterable<Value, any, any>

Returns​

Optional<Value>

Defined in​

filters.d.ts:796

Call Signature​

findLast<Value>(fn, iterable): Optional<Value>

Type Parameters​

• Value

Parameters​

fn​

(value) => unknown

iterable​

Iterable<Value, any, any>

Returns​

Optional<Value>

Defined in​

filters.d.ts:796