Effect Community•3y ago•

31 replies

Using ReadonlyArray.head to retrieve an object, but receiving "undefined" instead of an error if ...

ues ReadonlyArray.head but get obj | undifinded insted of getting error if not exist

Effect Community banner

Effect Community Join

Production-grade applications in TypeScript.

5,916Members

View on Discord

Resources

Recent Announcements

Similar Threads

Was this page helpful?

Product

Pricing Docs Communities

Resources

About Blog Changelog Contributors

Legal

Terms Privacy Cookies EULA

Twitter GitHub Discord

© 2026 Hedgehog Software, LLC. All rights reserved.

© 2026 Hedgehog Software, LLC

Twitter GitHub Discord

More

Communities Docs About Terms Privacy

Similar Threads

Bug with `ReadonlyArray.fromIterable` returning an Array of `undefined`

ECEffect Community / data

Using Option instead of Undefined or Null in Codebase

ECEffect Community / data

Using the ReadonlyArray.min method

ECEffect Community / effect-beginners-🚀

Using Effect.iterate as an alternative to ReadonlyArray.reduce for effects

ECEffect Community / effect-beginners-🚀