unless | /mod.ts | rambda@9.4.1

Module

x/rambda/mod.ts>unless

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mod.ts (default module)

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function unless

import { unless } from "https://deno.land/x/rambda@9.4.1/mod.ts";

unless<T, U>(

predicate: (x: T) => boolean,

whenFalseFn: (x: T) => U,

x: T,

): T | U

The method returns function that will be called with argument input.

unless<T, U>(predicate: (x: T) => boolean, whenFalseFn: (x: T) => U): (x: T) => T | U

unless<T>(

predicate: (x: T) => boolean,

whenFalseFn: (x: T) => T,

x: T,

): T

unless<T>(predicate: (x: T) => boolean, whenFalseFn: (x: T) => T): (x: T) => T

The method returns function that will be called with argument input.

If predicate(input) returns false, then the end result will be the outcome of whenFalse(input).

In the other case, the final output will be the input itself.

Type Parameters

Parameters

predicate: (x: T) => boolean

whenFalseFn: (x: T) => U

x: T

Returns

T | U

Type Parameters

Parameters

predicate: (x: T) => boolean

whenFalseFn: (x: T) => U

Returns

(x: T) => T | U

Type Parameters

Parameters

predicate: (x: T) => boolean

whenFalseFn: (x: T) => T

x: T

Returns

Type Parameters

Parameters

predicate: (x: T) => boolean

whenFalseFn: (x: T) => T

Returns

(x: T) => T