JavaScript is a lightweight and cross-platform scripting language that implements object-oriented concepts. The JavaScript language is not compiled, but rather translated. JavaScript code is translated by the JavaScript Translator (included in the browser).
Many websites use JavaScript (js) as a light-weight object-oriented programming language for scripting. Netscape Navigator introduced it in 1995 as a tool for adding programs to webpages. JavaScript is a programming language that follows the syntax and structure of C. In this sense, it is a structured programming language.
JavaScript is used for creating dynamic pages on the client side. The JavaScript programming language runs in the browser. Static HTML web pages become interactive ones when updated dynamically, form data is validated, multimedia is controlled, images are animated, and more.
In JavaScript, certain types are implicitly cast, so it is a weakly typed language. There are several operating systems that support JavaScript, including Windows, MacOS, etc.
The JavaScript programming language was developed by Brendan Eichwhile working at Netscape Communications Corporation. In May 1995, Eich developed JavaScript in just 10 days after being assigned the task of creating a scripting language for web browsers. After being initially called Mocha, the language was named LiveScript, then JavaScript. As a result with JavaScript, you can create dynamic and interactive web applications, and it is one of the most widely used programming languages in the world.
JavaScript allows you to create web applications that are interactive and dynamic using a variety of programming languages.
JavaScript was originally used to automate simple client-side tasks like form validation and animation. Over time, however, JavaScript's capabilities increased, and it gradually became used for more complex applications on the web.
JavaScript applications were greatly improved by Google's V8 engine developed in 2005. By doing so, JavaScript was made capable of running more complex applications, such as single-page applications and collaboration tools in real-time. With new features and capabilities being added regularly, the language has evolved significantly since its creation.
A web browser already contains JavaScript, so it does not need to be downloaded separately. Integrated development environments (IDEs) or text editors that allow you to write and save plain text files can be used to create and run JavaScript code. Notepad++, Sublime Text, Atom, and Visual Studio Code are all popular text editors for JavaScript development.
The JavaScript programming language is client-side, meaning that it is executed by the user's computer and not by a server. It is important to consider this when creating web applications since users can disable JavaScript in their web browser settings.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Hello World Example</title>
<script>
alert('Hello World');
</script>
</head>
<body>
</body>
</html>
document.write('Hello World')
console.log('Hello World')