JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.

JavaScript is one of the three core technologies of the World Wide Web, alongside HTML and CSS.

How does JavaScript work?

JavaScript is a scripting language, which means that it is interpreted at runtime. This means that JavaScript code is not compiled into machine code before it is run, but instead it is interpreted by a JavaScript engine on the fly.

JavaScript is a single-threaded language, which means that it can only execute one task at a time. However, JavaScript is also an event-driven language, which means that it can respond to events such as clicks, mouse movements, and keyboard presses.

What can JavaScript do?

JavaScript can be used to do a wide variety of things, including:

• Create interactive web pages
• Validate user input
• Control the flow of a web page
• Manipulate the DOM
• Create custom animations and effects
• Make AJAX requests
• And much more!

Why use JavaScript?

There are many benefits to using JavaScript, including:

• It is a powerful language that can be used to create a wide variety of interactive web pages.
• It is a relatively easy language to learn, even for beginners.
• It is supported by all major web browsers.
• It is free to use.

Conclusion

If you are interested in learning how to create interactive web pages, then JavaScript is a great language to learn. It is a powerful and versatile language that can be used to create a wide variety of interactive web pages.