Any/Try | ts-toolbelt

Type aliases

Try

Try<A1, A2, Catch>: A1 extends A2 ? A1 : Catch

Similar to Cast but with a custom fallback Catch. If it fails, it will enforce Catch instead of A2.

Type parameters

A1: any

to check against
A2: any

to try/test with
Catch

to fallback to if the test failed

returns

A1 | Catch

example

import {A} from 'ts-toolbelt'

type test0 = A.Try<'42', string>          // '42'
type test1 = A.Try<'42', number>          // never
type test1 = A.Try<'42', number, 'tried'> // 'tried'

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