support nullish contexts for binding with :by #511
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Confirmed working for my intended use case via https://jsbin.com/nolobokuyo/1/edit?html,js,output |
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This resolves: #510
We want to support event binding to a context which might be undefined through the
:byattribute.The change in functionality will create an observation which watches the context suggested through
:byand rebinds the actual event handler when that context changes. This permits null values, initial or otherwise.Please provide feedback on test cases, if you can think of something that I missed!