Following are the features JS brings to websites (which were absent in HTML):
- Real-time live messaging
- Autocomplete (forms)
- Loading or reloading parts of a page
- Playing audio/video
- Verifying inputs such as forms
1. Faster Client-side execution
By running the code directly in the client’s browser, the websites can load much faster, as it no more needs continuous communication with the server. Additionally, JS is asynchronous, which means even with the availability of the server, it communicates with the server in the background without interrupting what is happening on the front-end.
2. Simplicity and Ease
3. MEAN Stack
4. Google AMP
5. Availability of libraries
Thanks to the widespread presence of JS for many years, a number of libraries are available for use. This means every time any feature has to be included or a website has to be enhanced or modernized, one can use a fitting library instead of writing the whole code. This brings speed, efficiency, and the availability of choice to web development.
JS is largely interoperable, unlike SSI or PHP. It can be inserted into any webpage regardless of its extension. This brings great flexibility to developers working with JS.
7. Always Evolving
With the large community of JS users, it continuously keeps evolving, be it updates or new libraries or even frameworks such as angular or node. This keeps it ever relevant to the current market requirements and even adds simplicity to its usage.
As some people rightly say, knowing JS and being able to write codes and execute in JS are completely different things. Those new to programming may have to learn from the basics including variables, functions, etc. This might take a while but is necessary. Once the basics are clear, it is time to learn by actually doing stuff. One cannot learn coding without writing codes that run (and hence a lot more that don’t run).