JSFiddle - React, Tailwind, and code Playground

JavaScript

var firstNumber, //declare first variable
        secondNumber; //declare second variable
    firstNumber = Number(window.prompt("Enter first Number:", 0));
    secondNumber = Number(window.prompt("Enter second integer:", "0"));

    document.writeln("<H1>Comparison Output</H1>");
    document.writeln("<TABLE BORDER = '2' WIDTH = '100%'>"); // Creates table   

    if (firstNumber == secondNumber)
        document.writeln("<TR><TD>" + firstNumber + " = " + secondNumber +
            "</TD></TR>"); // Creates rows and columns
    if (firstNumber != secondNumber)
        document.writeln("<TR><TD>" + firstNumber + " Not equal to " + secondNumber +
            "</TD></TR>");

    if (firstNumber > secondNumber)
        document.writeln("<TR><TD>" + firstNumber + " > " + secondNumber +
            "</TD></TR>")
    else
        document.writeln("<TR><TD>" + firstNumber + " < " + secondNumber +
            "</TD></TR>");
    // Display results
    document.writeln("</TABLE>");