how to concatenate two numbers in javascript code example

Example 1: how to add two numbers in javascript

let a = 4;
let b = 5;
document.write(a + b);

Example 2: add two numbers in javascript

const num1 = 5;
const num2 = 3;

// add two numbers
const sum = num1 + num2;

// display the sum
console.log('The sum of ' + num1 + ' and ' + num2 + ' is: ' + sum);