Variable length Array tuple in TypeScript?

Question

Is there a way to define variable-length Array tuple?

["string", 1, 1, 1, 1, 1]
["string", 1]

Something like

type StringNumbers = [string, ...number]

@TitianCernicova-Dragomir OMG, TypeScript type system would never stop surprising me, I was not expected that it's possible :). Thanks! — Alex Craft
– Alex Craft, Commented Jan 7, 2020 at 0:48

Titian Cernicova-Dragomir · Accepted Answer · 2020-01-07 08:28:04Z

7

You can use rest in tuples:

type StringNumbers = [string, ...number[]]

answered Jan 7, 2020 at 8:28

253k37 gold badges464 silver badges394 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1