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<html>
<head>
<title>The JavaScript Encyclopedia: V</title>
<link rel="stylesheet" href="encyclopedia.css" type="text/css">
</head>
<body><h1>V</h1>
<h2 id="valueOf">valueOf</h2>
<h3><code>valueOf</code> <code>Boolean</code> prototype function</h3>
<p>Blah.</p>
<h3><code>valueOf</code> <code>Date</code> prototype function</h3>
<p>Blah.</p>
<h3><code>valueOf</code> <code>Number</code> prototype function</h3>
<p>Blah.</p>
<h3><code>valueOf</code> <code>Object</code> prototype function</h3>
<p>Blah.</p>
<h3><code>valueOf</code> <code>String</code> prototype function</h3>
<p>Blah.</p>
<h2 id="var">var <a href="R.html#reserved word"><strong>reserved word</strong></a></h2>
<h3 id="var statement"><code>var</code> statement</h3>
<p>Blah.</p>
<h2 id="variable">variable</h2>
<p>A variable is a named value within a function or within the <a href="G.html#global">global</a> context. A variable has a <a href="N.html#name">name</a>. The initial value of a variable is <a href="U.html#undefined"><code>undefined</code></a>. The value of a variable can be changed with an <a href="A.html#assignment operator">assignment operator</a>. A variable is declared with the <a href="#var statement"><code>var</code> statement</a> or the <a href="F.html#function statement">function statement</a>.</p>
<h2>variadic</h2>
<p>A variadic function is a function that takes a variable number of arguments. See <a href="A.html#arguments">arguments <dfn>parameter</dfn></a>.</p>
<h2>void <a href="R.html#reserved word"><strong>reserved word</strong></a></h2>
<h3><code>void</code> prefix operator</h3>
<p>The <code>void</code> operator takes the value of its operand and ignores it. Its result is the <a href="U.html#undefined">undefined</a> value. In other languages, <code>void</code> is a type and not a useless operator, so the likelihood of inspiring confusion with the use of <code>void</code> is very high. You don't need that.</p>
</body>
</html>