There are three distinct categories.
What is the process of combining A and B?
Using typescript version 3.6.3
type A = [any]
type B = [any, any]
type C = [any, any, any]
Is it possible to merge [any] with [any, any] in some way?
There are three distinct categories.
What is the process of combining A and B?
Using typescript version 3.6.3
type A = [any]
type B = [any, any]
type C = [any, any, any]
Is it possible to merge [any] with [any, any] in some way?
It seems like you want to merge two tuple types together in TypeScript, creating a new type from the combination of them. Unfortunately, TypeScript doesn't have native support for this behavior. Even though some manual implementations are available, a straightforward recursive definition is not directly supported.
One approach is to utilize an external library called ts-toolbelt that leverages recursive types to implement Concat functionality. This library's recursive types are either currently supported by TypeScript or will be integrated soon, as it has been proposed to become part of the test suite for compiling TypeScript itself.
If you prefer not to rely on an external library, you can create your solution. Below is an example I crafted that can handle tuples up to a length of around 30 using some type manipulations and a small script to produce the necessary parts:
(type definitions omitted for brevity)You can test if this implementation works using examples like the following:
(example test cases omitted for brevity)When working with edge cases involving readonly, optional, or rest tuple elements, as well as arrays that aren't strictly tuples, thorough testing is recommended before deploying this solution in a production environment.
I hope this guidance serves you well; best of luck with your coding endeavors!
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