What is JavaScript?
JavaScript is a programming language that adds dynamic features to websites, acting like the brain of a webpage.
So, what do we mean by dynamic features?
Some examples of dynamic features are listed below.
Event Handling
An event refers to an action taken by a user on a website.
JavaScript allows the website to respond to events such as button clicks, mouse hovers, and keyboard inputs.
For instance, when a button is clicked, you can make it change color.
Web Form Validation
JavaScript is used to validate input data in forms like a login page.
For example, it can check if the entered value is an email or if a password is at least six characters long.
Animation Effects
With CSS, you can add animation effects to a webpage.
For instance, you can make an HTML element slowly appear or show up after a specified time.
Fetching/Sending Data
You can fetch data from the server that provides dynamic web content to display on a webpage or send necessary data to the server.
JavaScript is an essential component of web pages, along with HTML and CSS.
JavaScript is widely used not only for web pages displayed in browsers but also in web servers, mobile apps, desktop applications, and other application software fields.
Practice
Follow the highlighted parts of the code and try entering them yourself.
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