What is still needed Javascript?

Work in a small web Studio, a typical order: landing pages, corporate websites and the like, but when they are created with the fewest number of Javascript: the appearance or disappearance of blocks, sending the data with Ajax and nothing else. I want to develop in the Javascript side, but is that enough?
July 9th 19 at 10:22
3 answers
July 9th 19 at 10:24
sending Ajax data

If the shipment, receiving can also be done in AJAX, read about SPA applications, more adaptability, do you get to do complex, "rubber" and at the same time, cross-browser interface without JavaScript?

I want to develop in the Javascript side, but is that enough?

And what about enough, it's a defined task, if you will "sculpt" the JavaScript where it is not needed (at the expense of speed of action, timing performance, etc.) just because you felt like it, though, and you'll develop as a JavaScript developer, but as an employee will be degraded, and it is much more important in life, that is going to degrade as a person in General, so look for the real problem, not suck their finger.
July 9th 19 at 10:26
But in many places, in Wikipedia there is painted in detail. For example:

JavaScript is widely used in browser-based operating systems. For example, the source code for WebOS IndraDesktop 75 % of the JavaScript code browser operating system IntOS — 70 %. The share of JavaScript source code in eyeOS — 5 %, however, in the framework of this operating system JavaScript plays an important role as part of the visualization on the client and as a necessary mechanism for communicating client and server.
JavaScript is used to write application software. For example, 16.4% of the source code of Mozilla Firefox written in JavaScript. Google Chrome OS as application software uses the web application. In the GNOME desktop environment you can create JavaScript programs that operate with the GNOME libraries by using Gjs, Seed.
July 9th 19 at 10:28
and better frameworks angular JS, etc

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