Fat arrow function placeholders.

ibfe.markdown

Whilst I wait for better support for fat arrow functions, they can be emulated with what I like to call an immediately bound function expression (IBFE).

For example this:

var test = (a, b, c) => console.log(a, b, c, this.xyz);

Can be emulated with:

var test = (function (a, b, c) {
  console.log(a, b, c, this.xyz);
}).bind(this);

It's bulkier for sure, but later on you can just swap it out for the arrow function equivalent.