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Q. Consider the following code snippet :
var book = {
"main title": "JavaScript",
'sub-title': "The Definitive Guide",
"for": "all audiences",
author: {
firstname: "David",
surname: "Flanagan"
}
};
In the above snippet, firstname and surname are
firstname and surname are the property names. The value of that particular property is itself an object. That is why these property names are unquoted.
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