declare var in typescript code example

Example 1: how to declare variable in typescript

const variableSample: number = 0;
let variableSample: number = 0;

Example 2: declare and initialize variable in typescript

var name:string = "John"; 
var score1:number = 50;
var score2:number = 42.50
var sum = score1 + score2

Example 3: variable declare in ts

let a:number =1
let b:Boolean = true
let c:string = "Grepper"