Answer 1

Sonic is right JS could be a good option even for a mobile app.

First you should create a working project suitable for small screens, then use Android Studio to build a mobile app. Android Studio will take your HTML/CSS/JavaScript code and create an APK file for you.

Sololearn has an article on how to do it:
https://www.sololearn.com/learn/1439/?ref=app

As for me, I use Opera browser to run my WEB codes on my phone.

Answer 2

rudolph flash, hardware support is done via API's provided by operating system. JavaScript can also access web cameras and other hardware. There is a lot of libraries written to help you do pretty much anything. You just have to read the documentation for those functions.

Just make a simple project to see how it works. Practice will help you make more complex stuff ☺.

Answer 3

Perhaps react native as a front end developer would be familiar with JS.

Answer 4

You can look through the docs of ionic. It has come out the ionic 4 recently and if you know the basics of html, css and javascript, it is good to start it. What is the difference compared to other mobile app frameworks? Well, first of all,it is hybrid which means you only code once and run everywhere. To be more specific, you don't need to write code for ios and android seperately. Moreover, it has been a long time that ionic is in the market which means that it is quite well developed. Really recommend you to have a look at it.

Answer 5

i dont know but i sure its swift (mabye im wrong)