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Type-Safe Errors for JS & TypeScript

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Hi, I've been enjoying neverthrow for a while now. Since I try to rely on type inference as much as possible, I used some version of the types added in...

When implementing a function returning a result, it's often that I need to construct an `Ok` object. However, it's not so ergonomic to do this. `ok` must be passed an...

### Pull Request Description #### Summary This PR introduces enhancements to the error handling mechanism within the codebase by allowing custom error messages to be specified. Additionally, it updates the...

Currently it does not seem possible to handle both `Ok` and `Err` at the same time. Note that this behavior is different from `.andThen(...).orElse(...)` or `.orElse(...).andThen(...)` as the first of...

One of our use cases of `ResultAsync.combine` is to act as a `Promise.all` for several external API calls, which is great for combining multiple ResultAsyncs running in parallel. The array...

There's probably some good reason this hasn't been implemented, but sometimes I just want to know if something fired properly, no need to return a value. It seems ok() *has*...

This PR is related to the earlier #536 which proposed an implementation for an `andFinally` method that will be called regardless of whether an earlier step contained an error or...