JavaScript/Intermediate_JavaScript/Regular_Expression_Part2.html at master · TheShubham-K/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>&#x1F3F4;&#x200D;&#x2620;&#xFE0F; Complete Javascripts Course</title>
    <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous" />
    <style>

    </style>
</head>

<body>
    <br />
    <br />
    <center>
        <!-- <input type="text" id="item"> -->
        <br />
        <div id="wrapper">&#x1F4C3; &#x1F3EA; 👾</div>
        <br />
        <input type="button" class="btn btn-outline-danger" onClick="myFun()" value="Validate Email">
        <div id="message">Complete JavaScript Course</div>
        <div id="output"></div>
        <input type="text" id="email" value="email@gmail.com">
        <input type="text" id="num" value="123321">
        <input type="text" id="cha" value="characters">
        <br /><br />
    </center>
    <script>
        window.onload = build;
        var message = document.getElementById("message");
        var output = document.getElementById("output");

        // number input only digits
        // email input
        // text input only char
        // all need to have content
        var output = document.getElementById('output');
        var str =
            "abasdn skjkj eqwj k JavaScript adsjkj asllk 123432 43453 321 3 34 javascript 432 432 JavaScript 342 JavaScript4121";

        function cEmail(e) {
            var p = /([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z.]+)/ig;
            var r = e.match(p);
            return r == null ? false : true;
        }

        function cNum(e) {
            var p = /\D/;
            var r = e.match(p);
            return r == null ? true : false;
        }

        function cChar(e) {
            var p = /[^A-Za-z]/ig;
            var r = e.match(p);
            return r == null ? true : false;
        }

        function myFun() {
            var i = document.getElementsByTagName('input');
            for (var x = 0; x < i.length; x++) {
                //console.log(i[x]);
                if (i[x].value == "") {
                    console.log('No Value in ' + i[x].id);
                }
                if (i[x].type == "text") {
                    if (i[x].id == "email") {
                        if (cEmail(i[x].value)) {
                            console.log('Email Valid');
                        } else {
                            console.log('Bad Email');
                        }
                    }
                    if (i[x].id == "num") {
                        if (cNum(i[x].value)) {
                            console.log('Num only Valid');
                        } else {
                            console.log('Non Number in the string');
                        }
                    }
                    if (i[x].id == "cha") {
                        if (cChar(i[x].value)) {
                            console.log('Char only Valid');
                        } else {
                            console.log('Non Char is in the string');
                        }
                    }
                }
            }
        }
    </script>


    <script src="https://code.jquery.com/jquery-3.5.0.js"
        integrity="sha256-r/AaFHrszJtwpe+tHyNi/XCfMxYpbsRg2Uqn0x3s2zc=" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.bundle.min.js"></script>
</body>

</html>