Mr. Dubey • 97.30K Points
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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

(A) properties
(B) property values
(C) property names
(D) objects

Correct Answer - Option(C)
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Filed under category JavaScript

Explanation by: Mr. Dubey

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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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

Explanation by: Mr. Dubey

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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