Javascript-Recharge-Card/first.html at master · akprinciple/Javascript-Recharge-Card · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    <input type="number" id="box">
    <button onclick="typ()">Click</button>
    <script>
        let x= "Hello"
        let y = "World"
        let z = " "
        let k = "Life is Amazing "
        // console.log(x.str);
// Cancatenation
        console.log(x.concat(z.concat(y)));

        // To uppercase
        console.log(y.toLocaleUpperCase());

        // Substring
        console.log(x.substring(1,6));
        // Replace
        console.log(k.replace(' ', '-'));

        let date = '12/03/2004'
        let change = date.split('/')
        let age = 2023 - change[2]
        console.log(change[2]);
        console.log(age);

        // console.log('if you were born in ${change[2]} then your age is ${age}');
        // Repeat

        console.log(k.repeat(4));
// Start & End  With
        console.log(k.startsWith('Life'));
        console.log(k.endsWith('life'));

        console.log(x.includes('el'));

        function typ() {
            console.log(box.value-=3)
            // To change text to integer
            // alert(parseInt(box.value))
        }
        let a =2
    </script>
                <!-- <script>setTimeout(function(){window.location='transactions'}, 1000)</script>"; -->

</body>
</html>