JavaScriptPractice/loop3.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>

<p><b>Array.forEach? company = ['Sign Art', 'Indian Fashion', 'Google']</b></p>
<p id="demo"></p>
<script>
    var company = ['Sign Art', 'Indian Fashion', 'Google'];
    var com = '<ul>';
    for(i=0; i < company.length; i++){
        com += '<li>' + company[i] + '</li>'
    }
    com += '</ul>'
    document.getElementById('demo').innerHTML = com;
</script>

<p><b>Array.map? Number = [45, 4, 9, 16, 25]</b></p>
<p id="demo1"></p>
<script>
    var company1 = [45, 4, 9, 16, 25];
    var com1 = '';

    for(i=0; i < company1.length; i++){
        com1 += company1[i] * company1[i] + ', '
    }
    document.querySelector('#demo1').innerHTML = com1;
</script>

<p><b>Array.filter? company = [45, 4, 9, 16, 25, 100, 75, 54]</b></p>
<p id="demo2"></p>
<script>
    var numF = [45, 4, 9, 16, 25, 100, 75, 54];
    var nm = '';

    for(i = 0; i < numF.length; i++){
        if(numF[i] < 20){
            nm += numF[i] + ', '
        }
    }
    document.getElementById('demo2').innerHTML = nm;
</script>

<p><b>Array.reduce() company = [45, 5, 9]</b></p>
<p id="demo3"></p>
<script>
    var numR = [45, 5, 9];
    var numS = 0;

    for(i=0; i < numR.length; i++){
        numS += numR[i];
    }
    document.getElementById('demo3').innerHTML = numS;

</script>


<p><b>Array.every()? company = [45, 5, 9]</b></p>
<p id="demo4"></p>
<script>
    var numE = [45, 5, 9, 55, 52];
    var nuE = 0;
    for(i=0; i < numE.length; i++){
        if(numE[i] < 50){
            nuE ++
        }
    }
    if(nuE > 0){
        document.getElementById('demo4').innerHTML = 'true';
    }else{
        document.getElementById('demo4').innerHTML = 'false';
    }


</script>

<p><b>Array.indexOf()? company = ['Sign Art', 'Indian Fashion', 'Google']</b></p>
<p id="demo5"></p>
<script>
    var companyI = ['Sign Art', 'Indian Fashion', 'Google'];

</script>

<p><b>Array.find()? company = ['Sign Art', 'Indian Fashion', 'Google']</b></p>
<p id="demo6"></p>
<script>
    var companyF = ['Google', 'Sign Art', 'Indian Fashion', 'Google'];
    var comF = 0;
    for(i=0; i < companyF.length; i++){
        if(companyF[i] == 'Google') {
            comF++
        }
    }
    if(comF > 0){
        document.getElementById('demo6').innerHTML = comF;
    }else{
        document.getElementById('demo6').innerHTML = 'not exist';
    }

</script>


<p><b>Array.findIndex()? company = [45, 4, 9, 16, 25, 100, 75, 54]</b></p>
<p id="demo7"></p>
<script>
    var arrFi = [45, 9,  4,16, 25, 100, 75, 54, 22];
    var arF = [];
    for(i=0; i < arrFi.length; i++){
        /*if(arrFi[i] == 25){
            arF = i;
        }*/
        if(arrFi[i] < 25){
            arF.push(arrFi[i])
        }
    }
    document.getElementById('demo7').innerHTML = arF.sort(function(a,b){return a - b});
</script>


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</body>
</html>