(min: number, max: number): Effect.Effect<number>Generates a random number between min (inclusive) and max (exclusive).
When to use
Use to generate a pseudo-random floating-point number within a numeric range.
Example (Generating a bounded random number)
import { Effect, Random } from "effect"
const program = Effect.gen(function*() {
const randomDouble = yield* Random.nextBetween(0, 1)
console.log("Random double: ", randomDouble)
})export const const nextBetween: (
min: number,
max: number
) => Effect.Effect<number>
Generates a random number between min (inclusive) and max (exclusive).
When to use
Use to generate a pseudo-random floating-point number within a numeric range.
Example (Generating a bounded random number)
import { Effect, Random } from "effect"
const program = Effect.gen(function*() {
const randomDouble = yield* Random.nextBetween(0, 1)
console.log("Random double: ", randomDouble)
})
nextBetween = (min: numbermin: number, max: numbermax: number): import EffectEffect.interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<number> =>
const randomWith: <A>(
f: (random: (typeof Random)["Service"]) => A
) => Effect.Effect<A>
r: {
nextIntUnsafe(): number
nextDoubleUnsafe(): number
}
r: {
nextIntUnsafe(): number
nextDoubleUnsafe(): number
}
function nextDoubleUnsafe(): numbernextDoubleUnsafe() * (max: numbermax - min: numbermin) + min: numbermin)