WHAT IS JAVASCRIPT
JavaScript is a popular programming language used to create interactive and dynamic web pages. It is one of the core technologies of the web, alongside HTML and CSS. JavaScript is an interpreted language, meaning it is executed line by line by the browser instead of being compiled beforehand. This makes it fast and flexible for web development.
It runs mainly on the client’s computer or web browser, allowing users to interact with web pages in real time without constantly communicating with a server. It is also an object-based and scripting language, which means it works with objects and is often used to automate tasks and add functionality to websites.
Programming Fundamentals in JavaScript
When learning this language , there are several important programming concepts you will come across:
- Variables – used to store data values
- Arrays – used to store multiple values in a single variable
- Loops – used to repeat actions
- Conditionals – used to make decisions in code
- Comparison & Operators – used to compare values and perform operations
- Objects – used to store structured data
- Functions – reusable blocks of code
- Program flow – the order in which code is executed
- Data types – different types of data like strings, numbers, and booleans
- Prototypes – used for object inheritance
- Events – actions triggered by user interaction like clicks or keypresses
What You Need to Run JavaScript
To run this language , you only need a web browser. Common examples include:
- Google Chrome
- Mozilla Firefox
- Internet Explorer
To write JavaScript code, you need a text editor such as Notepad++, Sublime Text, or any simple text editor.
HTML vs JavaScript
HTML and JavaScript are different but work together. HTML is a markup language used to structure web pages, while JavaScript is a programming language used to add interactivity. J uses events and actions to make web pages dynamic. It is usually recommended to learn HTML before JavaScript to understand how web pages are structured.
What Can Be Done with JavaScript
It can be used for many purposes, including:
- Adding content to HTML pages
- Making web pages responsive
- Creating cookies for storing user data
- Validating forms before submission
- Building animations, slideshows, and scrolling effects
- Developing full web applications using frameworks like AngularJS and ReactJS
This is a powerful language that plays a major role in modern web development. If you want to learn more, feel free to reach out and get started on your coding journey.
