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Merge pull request #1139 from maurodibert/patch-67

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Ilya Kantor 2019-07-11 23:31:35 +03:00 • committed by GitHub
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@ -107,7 +107,7 @@ As `super` looks for parent methods in `[[HomeObject]].[[Prototype]]`, that mean
Now let's make a mixin for real life.
The important feature of many browser objects (not only) can generate events. Events is a great way to "broadcast information" to anyone who wants it. So let's make a mixin that allows to easily add event-related functions to any class/object.
An important feature of many browser objects (not only) is that they can generate events. Events is a great way to "broadcast information" to anyone who wants it. So let's make a mixin that allows to easily add event-related functions to any class/object.
- The mixin will provide a method `.trigger(name, [...data])` to "generate an event" when something important happens to it. The `name` argument is a name of the event, optionally followed by additional arguments with event data.
- Also the method `.on(name, handler)` that adds `handler` function as the listener to events with the given name. It will be called when an event with the given `name` triggers, and get the arguments from `.trigger` call.