effect-io-ai

Package: effect
Module: MutableHashSet

MutableHashSet.has

Checks if the specified value exists in the MutableHashSet.

Time complexity: O(1) average

Syntax

import { MutableHashSet, pipe } from "effect"
import assert from "node:assert/strict"

assert.equal(
  // with `data-last`, a.k.a. `pipeable` API
  pipe(MutableHashSet.make(0, 1, 2), MutableHashSet.has(3)),
  false
)

assert.equal(
  // or piped with the pipe function
  MutableHashSet.make(0, 1, 2).pipe(MutableHashSet.has(3)),
  false
)

assert.equal(
  // or with `data-first` API
  MutableHashSet.has(MutableHashSet.make(0, 1, 2), 3),
  false
)

See

• Other MutableHashSet elements are module:MutableHashSet.add module:MutableHashSet.remove module:MutableHashSet.size module:MutableHashSet.clear

Signature

declare const has: { <V>(key: V): (self: MutableHashSet<V>) => boolean; <V>(self: MutableHashSet<V>, key: V): boolean; }

Source

Since v2.0.0