window.addEventListener('DOMContentLoaded',init, false);

function init() {

alert('WELCOME. Lets have some fun with JavaScript');

}

function changeBackgroundColor() {

const randomColor = Math.floor(Math.random() * 16777215).toString(16);

document.body.style.backgroundColor = "#" + randomColor;

}

function startCountdown(seconds) {

let timeLeft = seconds;

const intervalId = setInterval(() => {

if (timeLeft === -1) {

clearInterval(intervalId);

alert("Time's up!");

} else {

document.getElementById("timer").textContent = timeLeft;

timeLeft--;

}

}, 1000);

}

const funFacts = [

"Honeybees can recognize human faces.",

"The moon experiences moonquakes.",

"Ice pops were invented by accident in 1905.",

"Flamingos aren't born pink",

];

function displayFunFact() {

const randomIndex = Math.floor(Math.random() * funFacts.length);

alert(funFacts[randomIndex]);

}

function moveBox() {

const box = document.getElementById("box");

let x = 0;

const intervalId = setInterval(() => {

if (x >= 300) {

clearInterval(intervalId);

} else {

x++;

box.style.left = x + "px";

}

}, 10);

}