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<title>JavaScript Boolean Object</title>
 
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<p>From <b>http://www.w3schools.com</b> (Copyright Refsnes Data)</p>

<h1>JavaScript Boolean Object</h1>
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<p class="intro">The Boolean object is used to 
convert a non-Boolean value to a Boolean value (true or false).</p>
<hr />

<h2>Examples</h2>
<p>
<a target="_blank" href="tryit.asp@filename=tryjs_boolean">Check Boolean value</a><br />
Check if a Boolean object is true or false.</p>
<hr />

<h2>Complete Boolean Object Reference</h2>
<p>For a complete reference of all the properties and methods that can be used with 
the Boolean object, go to our <a href="../jsref/jsref_obj_boolean.asp">
complete Boolean object reference</a>.</p>
<p>The reference contains a brief description and examples of use for each 
property and method!<br />

</p>

<hr />

<h2>Boolean Object</h2>
<p>The Boolean object is an object wrapper for a Boolean value.</p>
<p>The Boolean object is used to 
convert a non-Boolean value to a Boolean value (true or false).</p>
<p>We define a Boolean object with the new keyword. The following code line 
defines a Boolean object called myBoolean:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table1">
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        <pre>var myBoolean=new Boolean();</pre>
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<p><b>Note:</b> If the Boolean object has no initial value or if it is 0, -0, null, &quot;&quot;, false, 
undefined, 
or NaN, the object is set to false. Otherwise it is true (even with the string 
&quot;false&quot;)!</p>

<p>All the following lines of code create Boolean objects with an initial value 
of false:</p>

<table class="ex" cellspacing="0" width="100%" border="1">
  <tr>
    <td>
    <pre>var myBoolean=new Boolean();
var myBoolean=new Boolean(0);
var myBoolean=new Boolean(null);
var myBoolean=new Boolean(&quot;&quot;);
var myBoolean=new Boolean(false);
var myBoolean=new Boolean(NaN);</pre>
    </td>
  </tr>
</table>
<p>And all the following lines of code create Boolean objects with an initial value 
of true:</p>

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  <tr>
    <td>
    <pre>var myBoolean=new Boolean(true);
var myBoolean=new Boolean(&quot;true&quot;);
var myBoolean=new Boolean(&quot;false&quot;);
var myBoolean=new Boolean(&quot;Richard&quot;);</pre>
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<p>From <b>http://www.w3schools.com</b> (Copyright Refsnes Data)</p>

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