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Random Quote Generator | Javascript Beginner Project Tutorial

Science & Technology


Random Quote Generator | JavaScript Beginner Project Tutorial

Welcome to the 52 JavaScript Projects in 52 weeks challenge! The project of the fifth week will be a code generator. Below is a detailed guide on how to create a Random Quote Generator using HTML, CSS, and JavaScript.

Step 1: Create the HTML Structure

Start by creating the basic HTML structure. Inside the body tag, create a div with an id of container.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Random Quote Generator</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>

<div id="container">
    <button id="btn">Press for a new quote</button>
    <div id="output">Press the button to generate a quote</div>
</div>

<script src="scripts.js"></script>
</body>
</html>

Step 2: Style with CSS

Next, create a CSS file named styles.css to make your HTML elements look better.

body (
    background-color: #2c3e50;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: white;
)

#container (
    background-color: #0e2431;
    border: 5px solid #127a75;
    width: 750px;
    text-align: center;
    padding: 50px 0;
    border-radius: 10px;
)

#btn (
    margin: 50px 0;
    padding: 10px 50px;
    font-size: 22px;
    color: white;
    background-color: rgb(129, 121, 121);
    border: none;
    border-radius: 5px;
    cursor: pointer;
)
#btn:hover (
    background-color: #34495e;
)

#output (
    font-size: 26px;
)

Step 3: Adding Functionality with JavaScript

Now, create a JavaScript file named scripts.js to add the functionality to generate and display random quotes.

const button = document.getElementById('btn');
const output = document.getElementById('output');

const quotes = [
    "\"The greatest glory in living lies not in never falling, but in rising every time we fall.\" - Nelson Mandela",
    "\"The way to get started is to quit talking and begin doing.\" - Walt Disney",
    "\"Your time is limited, so don't waste it living someone else's life.\" - Steve Jobs",
    "\"If you set your goals ridiculously high and it's a failure, you will fail above everyone else's success.\" - James Cameron",
    "\"Life is what happens when you're busy making other plans.\" - John Lennon",
    "\"Spread love everywhere you go. Let no one ever come to you without leaving happier.\" - Mother Teresa",
    "\"When you reach the end of your rope, tie a knot in it and hang on.\" - Franklin D. Roosevelt",
    "\"Always remember that you are absolutely unique. Just like everyone else.\" - Margaret Mead",
    "\"Don't judge each day by the harvest you reap but by the seeds that you plant.\" - Robert Louis Stevenson",
    "\"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.\" - Helen Keller"
];

button.addEventListener('click', function() (
    const randomQuote = quotes[Math.floor(Math.random() * quotes.length)];
    output.innerHTML = randomQuote;
));

Keyword

  • HTML structure
  • Button
  • Output div
  • CSS styling
  • JavaScript functionality
  • Random Quote Generator
  • Event listener
  • Array of quotes
  • Math.random

FAQ

Q1: What does Math.floor do in JavaScript? A1: Math.floor rounds down to the nearest whole number. It's often used in combination with Math.random to get a random index from an array.

Q2: How can I style elements in the center of the page? A2: Using CSS Flexbox, you can center elements by setting the body with display: flex, justify-content: center, and align-items: center.

Q3: What does the document.getElementById method do? A3: document.getElementById selects an HTML element with a specific ID so you can manipulate it using JavaScript.

Q4: Why use a separate CSS file? A4: Separating CSS into its own file helps to keep the code organized and improves maintainability.

Q5: Can I add more quotes to the generator? A5: Yes, you can simply add more items to the quotes array in the JavaScript file.