TypeError when Vue.bus.on (or other methods) is passed somewhere as an argument and only then executed

[nicky1038]

It's very useful to write the same logic for subscribing/unsubscribing to bus events in a separate function, and then call it passing Vue.bus.on or Vue.bus.off as an argument. But for now one cannot do this because of some this magic - a TypeError occurs.

Here's a minimal example to reproduce this issue:

Vue.use(VueBus);

function subscribe() {
	(function(s) {
		s('someevent', () => console.log('handled'));
	})(Vue.bus.on);
}

try {
	subscribe();
} catch(e) {
	alert(`IT'S A BUG! ${e.message}`);
}

Current workaround is to pass Vue.bus.on.bind(Vue.bus) instead of Vue.bus.on, but it's definitely not the way it should go.

[yangmingshan]

Sorry, I didn't check my inbox in time. I will fix it.

[yangmingshan]

It should be good by now.

[nicky1038]

I've tried it, now it works perfectly, thank you 👍