effect-io-ai

Package: effect
Module: TxHashSet

TxHashSet.fromHashSet

Creates a TxHashSet from an existing HashSet.

Example (Creating a transactional hash set from a HashSet)

import { Effect, HashSet, TxHashSet } from "effect"

const program = Effect.gen(function*() {
  const hashSet = HashSet.make("x", "y", "z")
  const txSet = yield* TxHashSet.fromHashSet(hashSet)

  console.log(yield* TxHashSet.size(txSet)) // 3
  console.log(yield* TxHashSet.has(txSet, "y")) // true

  // Original hashSet is unchanged when txSet is modified
  yield* TxHashSet.add(txSet, "w")
  console.log(HashSet.size(hashSet)) // 3 (original unchanged)
  console.log(yield* TxHashSet.size(txSet)) // 4
})

Signature

declare const fromHashSet: <V>(hashSet: HashSet.HashSet<V>) => Effect.Effect<TxHashSet<V>>

Source

Since v4.0.0