javascript/32_async_Project1.html at main · Rishav07-05/javascript · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Unlimited Colors</title>
</head>

<body style="background-color: black; color: rgb(182, 217, 248);">
    <div class="main">
        <h1>Start should change the background color every second</h1>
        <button id="start">START</button>
        <button id="stop">STOP</button>
    </div>
</body>

<script>
    const start = document.querySelector('#start')
    const stop = document.querySelector('#stop')
    const body = document.querySelector('body')
    function getRandomColor() {
        const letter = '0123456789ABCDEF';
        let color = '#';
        for (let i = 0; i < 6; i++) {
            color += letter[Math.floor(Math.random() * 16)];
        }
        return color;
    }


    let allColors;

    const changingColor = function(){
    if(!allColors){
        allColors = setInterval(myCol, 600)
    }
    function myCol(){
    body.style.backgroundColor = getRandomColor()
        }
    }


    const stopColor = function(){
    clearInterval(allColors);
    allColors = null
    }


    start.addEventListener('click', changingColor)

    stop.addEventListener('click', stopColor)

</script>

</html>