tristandunn/pusher-js — comment on commit 6dede8355e0454929d994d48622a73417a623a74
File:  line 0
By tristandunn:

There are of course limits and in some case it can hurt readability. Here it only results in ~265 bytes of savings, which is somewhat insignificant. It'd take a larger effort to get substantial gains.

I'd also argue that it helps readability by allowing me to parse `machine` instead of `this._machine`. It's still obvious what it is as long as the methods aren't so long that you can lose track of the variable, which is a sign refactoring is probably needed anyway.