tiinvo

tiinvo / Exports / Catch

Namespace: Catch

Table of contents

Functions

Functions

make

▸ make<F>(catchable): F extends AnyAsyncFn ? (…args: Parameters<F>) => Promise<Awaited<ReturnType<F>>> : (…args: Parameters<F>) => ReturnType<F>

Uses the Functors.Catchable<f> to return a wrapped function f.

If the function f throws internally, then the functors’ catch function is called, otherwise returns f output

Example

import { Catch, Functors, Num } from 'tiinvo'

function catchy(arg: number) {
   if (Num.isEven(arg)) {
     throw new TypeError("I expected an odd number :(")
   }

   return arg;
}

const c: Functors.CatchableModule<typeof catchy> = {
   [Functors.catchableSync]() {
     return {
       catch: (_error, args) => args[0] - 1,
       func: catchy,
     }
   }
}

const catched = Catch.make(c);

catched(10)                    // 9
catched(7)                     // 7

Since

4.0.0

Type parameters

Name Type Description
F extends AnyFn the function to catch

Parameters

Name Type Description
catchable CatchableModule<F> the CatchableModule

Returns

F extends AnyAsyncFn ? (…args: Parameters<F>) => Promise<Awaited<ReturnType<F>>> : (…args: Parameters<F>) => ReturnType<F>

a unary function

Defined in

src/Catch.ts:43

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