At a glance (mobile sorry), it looks like .on is jQuery? If so, you don’t need bind, you just need `function`: thing.on("some_event", function() { // `th

At a glance (mobile sorry), it looks like .on is jQuery? If so, you don’t need bind, you just need `function`: thing.on("some_event", function() { // `this` is `thing` }) Arrow functions close over `this` from their outer scope.