effect-io-ai

Package: effect
Module: Option

Option.liftThrowable

Lifts a function that may throw into one that returns an Option.

When to use

Use to wrap exception-throwing APIs (e.g. JSON.parse) for safe usage

Details

• If the function returns normally → Some with the result
• If the function throws → None (exception is swallowed)

Example (Lifting JSON.parse)

import { Option } from "effect"

const parse = Option.liftThrowable(JSON.parse)

console.log(parse("1"))
// Output: { _id: 'Option', _tag: 'Some', value: 1 }

console.log(parse(""))
// Output: { _id: 'Option', _tag: 'None' }

See

• liftNullishOr for nullable-returning functions

Signature

declare const liftThrowable: <A extends ReadonlyArray<unknown>, B>(f: (...a: A) => B) => (...a: A) => Option<B>

Source

Since v2.0.0