Reducer.some | /mod.ts | rimbu@1.2.1

Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.

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mod.ts (default module)

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function Reducer.some

import { Reducer } from "https://deno.land/x/rimbu@1.2.1/mod.ts";
const { some } = Reducer;

some<T>(pred: (value: T, index: number) => boolean, options?: { negate?: boolean; }): Reducer<T, boolean>

Returns a Reducer that ouputs false as long as no input value satisfies given pred, true otherwise.

Examples

Example 1

console.log(Stream.range{ amount: 10 }).reduce(Reducer.some(v => v > 5))
// => true

Type Parameters

Parameters

pred: (value: T, index: number) => boolean

a function taking an input value and its index, and returning true if the value satisfies the predicate

optional

options: { negate?: boolean; } = [UNSUPPORTED]

(optional) an object containing the following properties:
negate: (default: false) when true will invert the given predicate

Returns

Reducer<T, boolean>