DeveloperBreeze

Premium Component

This is a premium Content. Upgrade to access the content and more premium features.

Upgrade to Premium

Continue Reading

Discover more amazing content handpicked just for you

Tutorial
javascript

Comparison and Logical Operators

console.log(5 == "5"); // true (type coercion)
console.log(5 === "5"); // false (no type coercion)
console.log(10 > 7); // true
console.log(4 <= 4); // true

Logical operators combine multiple conditions or values.

Dec 11, 2024
Read More
Tutorial
javascript

Arithmetic Operators

  • Returns the remainder of the division.
  • Example:
     let remainder = 10 % 3; // 1

Dec 11, 2024
Read More
Tutorial
javascript

Non-Primitive Data Types (Objects, Arrays, and Functions)

  fruits.push("orange");
  console.log(fruits); // ["apple", "banana", "cherry", "orange"]
  • Removing Elements:

Dec 11, 2024
Read More
Tutorial
javascript

Primitive Data Types

Used for very large integers beyond the safe range of number.

  • Syntax: Append n to the end of an integer.
  • Example:

Dec 11, 2024
Read More
Tutorial
javascript

Variables and Constants

Variables can be declared without assigning a value. Uninitialized variables are undefined.

Example:

Dec 10, 2024
Read More
Tutorial
javascript

Hello World and Comments

  • The output will be:
     Hello, World!

Dec 10, 2024
Read More
Tutorial
javascript

JavaScript Tutorial for Absolute Beginners

for (let i = 1; i <= 5; i++) {
  console.log("Iteration:", i);
}
let i = 1;

while (i <= 5) {
  console.log("Iteration:", i);
  i++;
}

Sep 02, 2024
Read More
Tutorial
javascript

Creating a Dropdown Menu with JavaScript

We’ll modify our JavaScript to update the `aria-expanded` attribute when the dropdown is toggled.

dropdownToggle.addEventListener('click', function (event) {
  event.preventDefault();
  const isExpanded = dropdownMenu.style.display === 'block';
  dropdownMenu.style.display = isExpanded ? 'none' : 'block';
  dropdownToggle.setAttribute('aria-expanded', !isExpanded);
});

Sep 02, 2024
Read More
Tutorial
javascript

Understanding JavaScript Classes

Let's put everything together by building a simple application using classes. We'll create a Book class and a Library class to manage a collection of books.

class Book {
  constructor(title, author, isbn) {
    this.title = title;
    this.author = author;
    this.isbn = isbn;
  }

  getDetails() {
    return `${this.title} by ${this.author} (ISBN: ${this.isbn})`;
  }
}

class Library {
  constructor() {
    this.books = [];
  }

  addBook(book) {
    this.books.push(book);
  }

  removeBook(isbn) {
    this.books = this.books.filter(book => book.isbn !== isbn);
  }

  listBooks() {
    return this.books.map(book => book.getDetails()).join('\n');
  }
}

const library = new Library();
const book1 = new Book('The Great Gatsby', 'F. Scott Fitzgerald', '9780743273565');
const book2 = new Book('1984', 'George Orwell', '9780451524935');

library.addBook(book1);
library.addBook(book2);
console.log(library.listBooks());
// Output:
// The Great Gatsby by F. Scott Fitzgerald (ISBN: 9780743273565)
// 1984 by George Orwell (ISBN: 9780451524935)

Sep 02, 2024
Read More
Tutorial
javascript

Asynchronous JavaScript: A Beginner's Guide

If something goes wrong during the asynchronous operation, you can handle it using the catch method.

const promise = new Promise((resolve, reject) => {
    setTimeout(() => {
        reject("Error fetching data");
    }, 2000);
});

promise
    .then((message) => {
        console.log(message);
    })
    .catch((error) => {
        console.error(error);
    });

Aug 30, 2024
Read More
Tutorial
javascript

Understanding the DOM in JavaScript: A Comprehensive Guide

const parentElement = document.getElementById('parent');
parentElement.appendChild(newElement); // Adds the new element as the last child

For more control, you can insert elements before or after existing nodes.

Aug 30, 2024
Read More
Cheatsheet
javascript css +1

Building a Chrome Extension: A Step-by-Step Tutorial

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>My Chrome Extension</title>
  <link rel="stylesheet" href="popup.css">
</head>
<body>
  <div id="content">
    <h1>Hello, Chrome Extension!</h1>
    <button id="changeColor">Change Background Color</button>
  </div>
  <script src="popup.js"></script>
</body>
</html>
  • popup.html: This is a simple HTML file that contains a heading and a button. When the button is clicked, it will trigger a JavaScript function to change the background color of the current tab.

Aug 20, 2024
Read More
Tutorial
python

Automating Twitter Posting with Selenium

python twitter_bot.py
  • WebDriver Initialization: The script starts by initializing the WebDriver for your chosen browser. Make sure the driver you downloaded matches the browser you’re using.
  • Logging In: It navigates to Twitter's login page and uses the provided credentials to log in. The time.sleep() function is used to wait for the page elements to load.
  • Posting Tweets: The script iterates over the list of tweets and posts each one by interacting with the tweet box and clicking the tweet button.
  • Closing the Browser: After posting all tweets, the browser is closed using driver.quit().

Aug 08, 2024
Read More
Tutorial
python

Automate Tweet Posting with a Python Twitter Bot

After creating your Twitter app, note down the following credentials:

  • Consumer Key
  • Consumer Secret
  • Access Token
  • Access Token Secret

Aug 08, 2024
Read More

Discussion 0

Please sign in to join the discussion.

No comments yet. Start the discussion!