<b>true</b> if the specified property exists; otherwise, <b>false</b>. <h3>Examples</h3><ul class="examples"><li><p>Check whether the "debug" property exists.</p><pre class="code">property::exists('debug')</pre></li></ul><h3>Requirements</h3><div style="margin-left: 20px;"><b>Assembly:</b> NAnt.Core (0.85.1932.0)
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<b>true</b> if the specified property exists; otherwise, <b>false</b>. <h3>Examples</h3><ul class="examples"><li><p> Execute a set of tasks if the "build.debug" property exists. </p><pre class="code">