> I still find the difference between assigning and defining very subtle. I am > still trying to fully wrap my head around it. > > The best way to think about it is to think of how innerHTML works. If you > "define" a property called "innerHTML", it would pave over the existing > innerHTML and all of the semantics would be lost. When you "assign" to > elem.innerHTML, the accessor semantics handle updating the DOM with the value > given as the AssignmentExpression on RHS. > > Hopefully that helps?
Thanks. With properties, we are missing the clarity that we have with variables: You can’t assign to an undeclared variable (in strict mode). With properties, assignment “auto-declares” if there is no own property and no setter. So things are less clear. -- Dr. Axel Rauschmayer [email protected] home: rauschma.de twitter: twitter.com/rauschma blog: 2ality.com
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