Type Alias PadStart<Tuple, MaxLength, PadWith>

PadStart: TuplePlus.PadStart.Device<Tuple, MaxLength, PadWith, []>

Pad T with PadWith at the start of the tuple.

If the MaxLength is less than the length of the tuple, the Tuple will be returned unchanged.

⚗️ transform

Type Parameters

Tuple extends readonly unknown[]
MaxLength extends number
PadWith = unknown

Example

PadStart<[1, 2, 3], 5, 0> // [0, 0, 1, 2, 3]

// Ignore if MaxLength is less than the length of the tuple
PadStart<[1, 2, 3], 2> // [1, 2, 3]

// Default to unknown
PadStart<[1, 2, 3], 5> // [unknown, unknown, 1, 2, 3]