JavaScript use case in Web Designing
What is JavaScript?
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. Common examples of JavaScript that you might use every day include the search box on Amazon, a news recap video embedded on The New York Times, or refreshing your Twitter feed.
Incorporating JavaScript improves the user experience of the web page by converting it from a static page into an interactive one. To recap, JavaScript adds behaviour to web pages.
JavaScript Framework consists of a huge collection of various JavaScript libraries that supplies the programmers with pre-written code and thus allows even those who don’t have a lot of programming knowledge. Some of Framework are AngularJS, NodeJS, EmberJS, etc.
Why to use JavaScript over other programming languages?
Aside from the unlimited possibilities, there are many reasons for web developers to use JavaScript over other programming languages:
- JavaScript is the only programming language native to the web browser
- JavaScript is the most popular language
- There’s a low threshold to get started
- It’s a fun language to learn
Applications of JavaScript?
Every type of software uses JavaScript, including the server code (Node.js), productivity apps, 3D games, robots, IOT devices.
Almost all the Top companies are using JS like Netflix, Uber, Wallmart, Paypal, LinkedIn & more.
Importance of JavaScript in Web Designing
There are different web designing and practical uses of JavaScript:
1. Improvement in Web Interface
In these days, what we are doing with JavaScript is we enhance the old, tired and true web interface — clicking links, entering information and sending off, etc — to be more responsive to the end-user.
For example — A sign-up form can check if your name is available when you enter it, preventing you from having to endure a frustrating reload of the page.
2. Word Suggestion in Search Box
A search box can give you suggested results when you type, based on what has been entered so far.
For example — “bi”, could bring up suggestions to choose from that contain the string such as “bird”, “big”, and “bicycle”. This usage pattern is called Autocomplete.
3. Instant Update of Information
Information that changes constantly can load periodically without the need for user interactions.
For example — Sports match results or stock market tickers.
4. Loading Information Only When User Choose
Information that is nice to have and runs the risk of being redundant to some users can be loaded when and if the user chooses to access it.
For example — The navigation menu of a site can contain 6 links but display links to deeper pages on demand when the user activates a menu item.
5. Fixing Layout Issues
It can find the position and area of the element on the particular page and the dimensions of the browser window. By implementing this information you can stop overlapping elements and other similar issues.
For example — You may have a menu with several levels by clicking and checking if there is space for the submenu to appear before showing it, you can prevent scroll bars or overlapping menu items.
6. Enhancing HTML Interface
JavaScript can enhance the interfaces that HTML gives us. While it’s nice to have a text input box, you might want to have a combo box allowing you to choose from a list to preset values or enter your own. You can enhance a normal input box to do that, using JavaScript.
7. Animation of Page Elements
JavaScript helps to animate elements on a page to show and hide information or highlight specific sections of a page and make it more usable and richer user experience.
