README.md

JavaScript - Numbers

Numbers are one of the data types in JavaScript.

Since JavaScript is dynamically-typed language, we modify the value of integer variable to float or decimal type value.

let number = 10;
number = 10.2;
console.log(number);

JavaScript has one more important data type called NaN, which means Not a Number.

let number = 10;
let avenger = "ironman";
let result = number * avenger;
console.log(result);

Since multiplication operation is happening on invalid operands, JavaScript is assigning NaN as result.