Tuple For Type and Length Arrays
In this lesson, we will discuss tuples and how TypeScript differentiates them from arrays.
We'll cover the following...
We'll cover the following...
Tuple syntax #
The tuple type is an array of defined elements. To declare a tuple, you use square brackets, as in line 1, but instead of specifying a value, you use a type.
TypeScript 3.3.4
let numberTuple: [number, number, number];
A tuple can handle many different types. The tuple uses the same syntax as other types.
TypeScript 3.3.4
let myTupleWithTwoTypes: [number, string];
There is no difference between the declaration of a variable and the assignment. TypeScript checks for type ...