types-kit.deepmergetuple.md

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DeepMergeTuple type

Merge two tuples, values of the second array will assign values of the array type.

Signature:

export type DeepMergeTuple<
  A extends readonly unknown[],
  B extends readonly unknown[],
> = If<
  IsReadonlyArray<B>,
  readonly [...InternalDeepMergeTupleValue<A, B>, ...Slice<A, B['length']>],
  [...InternalDeepMergeTupleValue<A, B>, ...Slice<A, B['length']>]
>

References: If, IsReadonlyArray, InternalDeepMergeTupleValue, Slice

Example

    type Foo = [{ a: 1 }, 2, 3]
    type Bar = [{ b: 2 }, 5]
    // Expect: [{ a: 1, b: 2 }, 5, 3]
    type MergedTuple = DeepMergeTuple<Foo, Bar>