Introduction to JavaScript 🧑‍💻

JavaScript is the world’s most popular programming language. Wide range of features and easy to learn makes it popular.

Here is a detailed explanation of JavaScript for Web Development 🧵👇️

1. What is JavaScript?

JavaScript is an object-oriented scripting language used to make web pages interactive (e.g., animations, clickable buttons, pop-up menus, etc.).

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2. Why using JavaScript?

HTML content can be made interactive by JavaScript. Both client-side and server-side development are possible with JavaScript. JavaScript has a standard library of objects, such as Array, Date, Math, and many more.

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3. Why learning JavaScript?

– Powerful enough to handle everything – A lot of job opportunities – Easy to learn and build – Huge community – Well maintained

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4. Features of JavaScript

– All popular web browsers support JavaScript – JavaScript is a single threaded language – JavaScript is an object-oriented programming language – It is a case-sensitive language. – It is used everywhere

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6. How to add JavaScript code?

There are 3 ways to add JavaScript to your html web app – Between the body tag of html – Between the head tag of html – In .js file externally (preferred way)

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9. Advantages of External JavaScript

– It helps in better reusability and readability – It reduces page loading time since web browsers cache external js files. – The code length is reduced since only the location of the js file needs to be specified.

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Thank you for reading!

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