How to Declare an Array in TypeScript - Step by Step Examples

How to Declare an Array in TypeScript ?

In TypeScript, array declaration is similar to JavaScript but with added type annotations.

In this example,

We declare an array named numbers with type annotation number[] and initialize it with some values.
This enforces that the array can only contain numbers.
We print the array elements to the console.

let numbers: number[] = [1, 2, 3, 4, 5];
console.log('Array elements:', numbers);

Array elements: [ 1, 2, 3, 4, 5 ]

In this example,

We declare an array named names with type annotation string[] and initialize it with some values.
This enforces that the array can only contain strings.
We print the array elements to the console.

let names: string[] = ['Alice', 'Bob', 'Charlie'];
console.log('Array elements:', names);

Array elements: [ 'Alice', 'Bob', 'Charlie' ]

In this tutorial, we learned How to Declare an Array in TypeScript language with well detailed examples.