Type Alias TupleTake<T, N, R>

TupleTake: R["length"] extends N
    ? R
    : T extends readonly [infer H, ...(infer Rest)]
        ? TupleTake<Rest, N, readonly [...R, H]>
        : R

Take the first N elements of a tuple.

Type Parameters

T extends readonly any[]
Tuple type
N extends number
Number of elements to take
R extends readonly any[] = []

Remarks

Produces a new tuple containing the first N elements from the input tuple. If N exceeds the tuple length, returns the entire tuple.

Example

type T = TupleTake< [ 1, 2, 3, 4 ], 2 >;  // [ 1, 2 ]

Type Alias TupleTake<T, N, R>

Type Parameters

Remarks

Example

Settings