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Form Validation For Beginners
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‎97. Form Validation/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<meta http-equiv="X-UA-Compatible" content="ie=edge" />
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<link rel="stylesheet" href="style.css" />
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<title>Form Validator</title>
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</head>
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<body>
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<!-- Form -->
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<section class="container">
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<form>
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<div class="input-container">
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<input
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type="text"
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placeholder="Name*"
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class="username"
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id="username"
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/>
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<p class="user-msg msg">error message</p>
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</div>
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<div class="input-container">
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<input
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type="email"
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placeholder="Email Address*"
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class="email"
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id="email"
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/>
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<p class="email-msg msg">error message</p>
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</div>
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<div class="input-container">
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<input
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type="password"
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placeholder="Password*"
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class="password1"
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id="password1"
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/>
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<p class="password1-msg msg">error message</p>
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</div>
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<div class="input-container">
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<input
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type="password"
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placeholder="Confirm Password*"
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id="password2"
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class="password2"
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/>
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<p class="password2-msg msg">error message</p>
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</div>
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<input type="submit" value="Submit" class="submit" />
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<p class="already">Already have an account? <a href="#">Login</a></p>
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</form>
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<!-- Image / Content -->
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<div class="content">
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<img
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src="https://noblewoodgardenstore.ie/wp-content/uploads/2021/12/malvestida-magazine-DMl5gG0yWWY-unsplash-edited.jpg"
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/>
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<h1>
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Shoe <br />
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Palace
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</h1>
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</div>
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</section>
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<!-- <script src="script.js"></script> -->
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<script src="script.js"></script>
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</body>
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</html>

‎97. Form Validation/script.js‎

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const username = document.querySelector(".username");
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const email = document.querySelector(".email");
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const password1 = document.querySelector(".password1");
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const password2 = document.querySelector(".password2");
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const submit = document.querySelector(".submit");
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// MESSAGES
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const usernameMessage = document.querySelector(".user-msg");
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const emailMessage = document.querySelector(".email-msg");
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const password1Message = document.querySelector(".password1-msg");
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const password2Message = document.querySelector(".password2-msg");
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submit.addEventListener("click", (e) => {
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e.preventDefault();
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if (username === "" && email === "" && password1 === "" && password2 === "") {
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alert("Please fill all input fields");
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}
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if (username.value === "") {
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showMessage(usernameMessage, "Please Provide Your Name", "#FF0000");
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} else {
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showMessage(usernameMessage, "Great Name", "#4BB543");
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}
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if (email.value === "") {
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showMessage(emailMessage, "Please Provide Your Email", "#FF0000");
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} else {
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showMessage(emailMessage, "Got your email", "#4BB543");
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}
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if (password1.value === "") {
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showMessage(password1Message, "Please Provide Your Password", "#FF0000");
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} else {
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showMessage(password1Message, "Valid password", "#4BB543");
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}
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if (password2.value === "") {
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showMessage(password2Message, "Confirm Your Password", "#FF0000");
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} else if (password1.value !== password2.value) {
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showMessage(password2Message, "Passwords do not match", "#FF0000");
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} else {
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showMessage(password2Message, "Valid password", "#4BB543");
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}
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});
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function showMessage(element, msg, color) {
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element.style.visibility = "visible";
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element.textContent = msg;
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element.style.color = color;
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element.previousElementSibling.style.border = `2px solid ${color}`;
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}

‎97. Form Validation/style.css‎

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* {
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padding: 0;
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margin: 0;
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box-sizing: border-box;
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}
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:root {
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--main-color: #161a1d;
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--primary-color: #7289da;
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--gray-color: #4f4f4f;
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}
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body {
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background-color: var(--main-color);
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}
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/* Form */
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form {
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border: 2px solid rgba(255, 255, 255, 0.224);
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border-radius: 5px;
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width: 30%;
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padding: 40px;
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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opacity: 1.2;
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margin-left: 60px;
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margin-top: 50px;
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}
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form input {
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padding: 6px;
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width: 230px;
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outline: none;
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}
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input[type="submit"] {
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width: 230px;
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background: var(--primary-color);
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border: none;
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padding: 10px 20px;
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cursor: pointer;
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}
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.already {
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margin-top: 20px;
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}
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form p {
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font-family: sans-serif;
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font-size: 14px;
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color: #fff;
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}
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.input-container p.msg {
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visibility: hidden;
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margin-bottom: 10px;
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margin-top: 5px;
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}
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.input-container.error p.msg {
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visibility: visible;
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}
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img {
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width: 51%;
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position: absolute;
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top: 60px;
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right: 10%;
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}
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.content h1 {
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position: absolute;
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top: 45%;
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right: 38%;
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font-size: 5rem;
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color: #fff;
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}
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.input-container.error input {
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border-color: red;
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}
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.input-container.success input {
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border-color: rgb(97, 249, 97);
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}

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