TypeScript 4.2 expands the ways rest elements in tuple types can be used. Previously, TypeScript only permitted rest elements in the last position of a tuple type.

The TypeScript team announced the release of TypeScript 4.0, which includes long-awaited variadic tuple type support and other improvements without introducing any major breaking changes.

What's special about tuples is that TypeScript enforces the data type in each property/position. For example, if I access the second position in this tuple TypeScript knows that it's a Customer object ...

The TypeScript team recently announced version 3.1 of TypeScript, adding mappable tuple and array types and several other refinements. BT InfoQ Software Architects' Newsletter ...