method StreamClass.filter
Private
StreamClass.filter<S>(
source: Source<S>,
predicate: (
value: Exclude<S, AnyFailure>,
index: number
) => boolean
): StreamClass<Exclude<S, AnyFailure>, Extract<S, AnyFailure>>

StreamClass#filter as a static: Stream.filter(source, …) is Stream.from(source).filter(…).

await Stream.filter([1, 2, 3], (n) => n % 2 === 1).collect(); // [1, 3]

Type Parameters

Parameters

source: Source<S>
predicate: (
value: Exclude<S, AnyFailure>,
index: number
) => boolean

Return Type

StreamClass<Exclude<S, AnyFailure>, Extract<S, AnyFailure>>

Usage

import { StreamClass } from "lib/stream/stream.ts";