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

• Code
• Test

undefined and null

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

• Code
• Test

Exceptions

Use case: an API that may throw

• Code
• 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

• Code
• 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