StackOverflow2013

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plurals

PO
primarykey
Id
7689015
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2011-10-07T14:56:03.393
FavoriteCount
0
LastActivityDate
2011-10-07T15:11:59.797
LastEditDate
2011-10-07T15:11:59.797
LastEditorUserId
5445
OwnerUserId
5445
ParentId
7688902
PostTypeId
2
Score
17
ViewCount
0
LastEditorDisplayName
text
Body
First, the <code>function Empty() {}</code> representation is <a href="http://code.google.com/p/v8/">V8</a> stuff. In V8, the <code>Function.prototype</code> object has <code>"Empty</code>" as the value of the <code>Function.prototype.name</code> property, so I guess you are probably using the Chrome's Developer Console, and it displays the name of the function in this way. The <code>name</code> property of function objects is <code>non-standard</code> (not part of ECMA-262), that's why we see differences between implementations. Now, <code>Function.prototype</code> is a function, that returns always <code>undefined</code> and can accept any number of arguments, but why?. Maybe just for consistency, every built-in constructor's prototype is like that, <code>Number.prototype</code> is a <code>Number</code> object, <code>Array.prototype</code> is an <code>Array</code> object, <code>RegExp.prototype</code> is a <code>RegExp</code> object, and so on... The only difference (for example, between any function object and <code>Function.prototype</code>) is that obviously <code>Function.prototype</code> inherits from <code>Object.prototype</code>. <blockquote> it seems everything in javascript start from Object.prototype, am I right about that? </blockquote> Well, you're right <code>Object.prototype</code> is the last object of the prototype chain of most objects, but in ECMAScript 5, you can even create objects that doesn't inherit from anything (just like <code>Object.prototype</code> is), and form another inheritance chain, e.g.: <pre><code>var parent = Object.create(null), child = Object.create(parent); Object.prototype.isPrototypeOf(parent); // false Object.getPrototypeOf(parent); // null Object.getPrototypeOf(Object.prototype); // null </code></pre>
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1. POWhat is Function's __proto__?
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