JavaScript is one of the 3 languages all web developers must learn: 1. HTML to define the content of web pages. 2. CSS to specify the layout of web pages. 3. JavaScript to program the behavior of web pages. This tutorial covers every version of JavaScript: In this tutorial, the learning speed is your choice. Everything is up to you.

Statements are syntax constructs and commands that perform actions. We’ve already seen a statement, alert('Hello, world!'), which shows the message “Hello, world!”. We can have as many statements in our code as we want. Statements can be separated with a semicolon. For example, here we split “Hello World” into two alerts:

Mar 6, 2023 · Let’s understand the code structure with the help of a simple JavaScript example that will make a block disappear with javascript only. Code Structure: HTML(index.html): The HTML code contains a simple div element that is wrapped inside an anchor tag(link) so that whenever we click the div element, the javascript code works.

Mar 20, 2025 · JavaScript provides a versatile set of data structures that help in efficient data storage, manipulation, and problem-solving. In this section, we will explore each data structure and algorithm in detail. JavaScript's built-in utilities and ES6+ enhancements provide additional data structures, including the following.

Jul 6, 2023 · The goal of this handbook is to quickly introduce you to the basics of JavaScript so you can start programming applications. Instead of covering all the theories and concepts of JavaScript, I'll be teaching you only the most important building blocks of the language.

Aug 24, 2021 · In this tutorial, we’ll go over many of the rules and conventions of JavaScript syntax and code structure. Functionality and readability are two important reasons to focus on syntax as you begin to work with JavaScript. There are some syntax rules that are mandatory for JavaScript functionality.

3 days ago · Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.

Sep 17, 2024 · Proper code structure is crucial for readability, maintainability, and collaboration. We'll cover code structure, statements, semicolons, and comments. Let's get started!

Apr 3, 2025 · JavaScript is a multi-paradigm, dynamic language with types and operators, standard built-in objects, and methods. Its syntax is based on the Java and C languages — many structures from those languages apply to JavaScript as well. JavaScript supports object-oriented programming with object prototypes and classes.

In this chapter, we will start to do things that can actually be called programming. We will expand our command of the JavaScript language beyond the nouns and sentence fragments we’ve seen so far to the point where we can express meaningful prose.