Test FP-TS

A playground to test gcanti's super article.

Use case

Sentinels

Use case: an API that may fail and returns a special value of the codomain

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Test

`undefined` and `null`

Use case: an API that may fail and returns undefined (or null)

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Test

Exceptions

Use case: an API that may throw

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Test

Random values

Use case: an API that returns a non deterministic value

Code
Test

Synchronous side effects

Use case: an API that reads and/or writes to a global state

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Test

Use case: an API that reads and/or writes to a global state and may throw

Code
Test

Asynchronous side effects

Use case: an API that performs an asynchronous computation

Code
⚠️ I don't know how to test this, help me please :)

Use case: an API that performs an asynchronous computation and may reject

Code
Test