Class methods as event handlers in JavaScript?

Question

Is there a best-practice or common way in JavaScript to have class members as event handlers?

Consider the following simple example:

Answer 1

You can use fat-arrow syntax, which binds to the lexical scope of the function

function doIt() {
  this.f = () => {
    console.log("f called ok");
    this.g();
  }
  this.g = () => {
    console.log("g called ok");
  }
}

After that you can try

var n = new doIt();
setTimeout(n.f,1000);

You can try it on babel or if your browser supports ES6 on jsFiddle.

Unfortunately the ES6 Class -syntax does not seem to allow creating function lexically binded to this. I personally think it might as well do that. EDIT: There seems to be experimental ES7 feature to allow it.