TYPESCRIPT

How to define an Tuple type in typescript

let myTuple:[ string, number ] = [ "hello", 20 ];

type script tuple type

// Declare a tuple type
let x: [string, number];
// Initialize it
x = ["hello", 10]; // OK
// Initialize it incorrectly
x = [10, "hello"]; // Error
Type 'number' is not assignable to type 'string'.Type 'string' is not assignable to type 'number'.23222322Type 'number' is not assignable to type 'string'.Type 'string' is not assignable to type 'number'.Try

Defining Tuples In Typescript

 let yourTuple: readonly [number, number];
 yourTuple = [12, 44];
 

typescript tuple example

let bgColor, headerColor: [number, number, number, number?];
bgColor = [0, 255, 255, 0.5];
headerColor = [0, 255, 255];
Code language: JavaScript (javascript)