Well, to tackle that I would like to say no , in short. But, it is nice enough for small functions and making immediate changes to a page such as for using as a remote controller with limited features but it can’t be the car itself.
Although these tags help in providing somewhat functionality when loading a script from a source i.e. when using a src tag . They are not functional in an embedded script. Even if you are able to use it using src tag. They run in accordance to the page not the content you’ll need to add from a different source such as Redis,Firebase, MongoDB or Mysql.
And at the same time running the script or providing the srcipt on the same page will lead to errors. Main Cause ? The DOM’s .
Any of the above engines provided a js would not perform exceptionally.
As I talked about, if you’re planning a real dynamic app you would have to choose Node.js.
And for small onloaded() page scripting use basic js.