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<code>public static function isHttpURL(url:String):Boolean</code><p>
       Determines if the URL uses the HTTP, HTTPS, or RTMP protocol. 
             </p><span class="label">Parameters</span>
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<td width="20px"></td><td><code><span class="label">url</span>:String</code> &mdash; The URL to analyze.
      
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<span class="label">Returns