isfinite in javascript code example

Example 1: IFFI in js

// This function will be invoked right away we don't have to call it
(function () {
	console.log("This is an IIFE"); 
})();

Example 2: isfinite javascript

function div(x) {
  if (isFinite(1000 / x)) {
    return 'Number is NOT Infinity.';
  }
  return 'Number is Infinity!';
}

console.log(div(0));
// expected output: "Number is Infinity!""

console.log(div(1));
// expected output: "Number is NOT Infinity."