effect-io-ai

Package: effect
Module: Effect

Effect.timed

Returns the runtime duration of an effect together with its result.

Details

The original success, failure, or interruption is preserved; only the success value is paired with the duration.

Example (Measuring execution time)

import { Console, Duration, Effect } from "effect"

const program = Effect.gen(function*() {
  const [duration, value] = yield* Effect.timed(Effect.succeed("ok"))
  yield* Console.log(`took ${Duration.toMillis(duration)}ms: ${value}`)
})

Signature

declare const timed: <A, E, R>(self: Effect<A, E, R>) => Effect<[duration: Duration.Duration, result: A], E, R>

Source

Since v2.0.0