js-number-data-type

var num1 = 30;
var num2 = 5 / 0;   // will return Infinity
var num3 = -5 / 0;  // will return -Infinity
let x = 20 / "Shark"; // Will return NaN
const PI = 3.14;

console.log(num1); // Output: 30
console.log(num2); // Output: Infinity
console.log(num3); // Output: -Infinity
console.log(x); // Output: NaN
console.log(PI); // Output: 3.14