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         <td valign="top" class="name">ISDATE</td>
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܂ Java IuWFNgtlɕϊł邩ǂ𒲂ׂ܂B
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    <td valign="top" colspan="2" class="description"><span class="title">߂l</span>
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 (string) tlɕϊłꍇ trueAϊłȂꍇ falseBColdFusion ł́Au[l̖߂ĺAɑΉ镶 &quot;Yes&quot; ܂ &quot;No&quot; ɕϊ܂B
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    <td valign="top" colspan="2" class="description"><span class="title">JeS</span>
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tю֐A֐ 
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    <td valign="top" colspan="2" class="description"><span class="title">֐̃V^bNX</span><pre>IsDate(string)
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    <td valign="top" colspan="2" class="description"><span class="title">֘A</span>
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CreateDateTimeAIsNumericDateAIsValidALSDateFormatALSIsDateAParseDateTime
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    <td valign="top" colspan="2" class="description"><span class="title">p[^</span>
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    <td valign="top" colspan="2" class="description"><span class="title">gp@</span>
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̊֐ɂĒׂ̂́Ač̓t`݂̂łB̓t`̃T|[gɂẮALSDateFormat QƂĂB
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tIuWFNg͐ 100 ` 9999 N͈͓̔ƂȂ܂B
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    <td valign="top" colspan="2" class="description"><span class="title"></span><pre>&lt;h3&gt;IsDate ̗&lt;/h3&gt;
&lt;cfif IsDefined(&quot;FORM.theTestValue&quot;)&gt;
   &lt;cfif IsDate(FORM.theTestValue)&gt;
   &lt;h3&gt; &lt;cfoutput&gt;#DE(FORM.theTestValue)#&lt;/cfoutput&gt;
    ͗LȓtłB&lt;/h3&gt;
   &lt;cfelse&gt;
   &lt;h3&gt; &lt;cfoutput&gt;#DE(FORM.theTestValue)#&lt;/cfoutput&gt;
    ́ALȓtł͂܂B&lt;/h3&gt;
   &lt;/cfif&gt;
&lt;/cfif&gt;
&lt;form action = &quot;isDate.cfm&quot;&gt;
&lt;p&gt;͂AtlƂĕ]ł邩ǂ𒲂ׂ܂B
&lt;p&gt;&lt;input type = &quot;Text&quot; name = &quot;TheTestValue&quot; value = &quot;&lt;cfoutput&gt;#Now()#
&lt;/cfoutput&gt;&quot;&gt;
&lt;input type = &quot;Submit&quot; value = &quot;tł?&quot; name = &quot;&quot;&gt;
&lt;/form&gt;
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<td valign="top" class="name">STRING</td>
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    <td>A܂͕܂łϐłB 


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