JavaScriptPractice/math.html at main · EduKeyPath/JavaScriptPractice · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>demo</title>
</head>
<body>
<h4>Math.round()</h4>
<p id="demo"></p>
<p id="demo3"></p>
<script>
    document.getElementById('demo').innerHTML = (457.424).toFixed();
    document.getElementById('demo3').innerHTML = Math.round(457.424);
</script>

<h4>Math.pow()</h4>
<p id="demo1"></p>
<script>
    document.getElementById('demo1').innerHTML = Math.pow(3, 4);
</script>

<h4>Math.sqrt()</h4>
<p id="demo2"></p>
<script>
    document.getElementById('demo2').innerHTML = Math.sqrt(9);
</script>

<h4>Math.abs()</h4>
<p id="demo4"></p>
<script>
    document.getElementById('demo4').innerHTML = Math.abs(-10.11);
</script>

<h4>Math.ceil()</h4>
<p id="demo5"></p>
<script>
    document.getElementById('demo5').innerHTML = Math.ceil(4.2);
</script>

<h4>Math.floor()</h4>
<p id="demo6"></p>
<script>
    document.getElementById('demo6').innerHTML = Math.floor(4.2);
</script>

<h4>Math.min()? [250, 100, -50, -100, -350, -87]</h4>
<p id="demo7"></p>
<script>
    var mm = [250, 100, -50, -100, -350, -87];
    //var mmm = Math.min(...mm);
    var mmm = Math.min.apply(null, mm);
    document.getElementById('demo7').innerHTML = mmm;
</script>

<h4>Math.max()? [250, 100, -50, -100, -350, -87]</h4>
<p id="demo8"></p>
<script>
    var mmX = [250, 100, -50, -100, -350, -87];
    var mx = Math.max(...mmX);
    document.querySelector('#demo8').innerHTML = mx;
</script>

<h4>Math.random()? 0 to 9</h4>
<p id="demo9"></p>
<script>
    var mr = Math.floor(Math.random()*10 + 1);
    document.querySelector('#demo9').innerHTML = mr;
</script>

<h4>Math.random()? 15 to 20</h4>
<p id="demo10"></p>
<button onclick="mfFunc(0, 200);">Click</button>
<script>
    function mfFunc(min, max){
        var mF = Math.round(Math.random() * (max - min));
        document.getElementById('demo10').innerHTML = mF;
    }

</script>


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</body>
</html>