/strong></h4>
<ul>
<li><code>array</code> - Array creation</li>
<li><code>json</code> - JSON object</li>
<li><code>vector</code> - Vector creation</li>
<li><code>function</code> - Function definition</li>
</ul>
<h4 id="error-handling"><strong>Error Handling</strong></h4>
<ul>
<li><code>iferr</code> - Error handling with fallback</li>
<li><code>ifnull</code> - Null value handling</li>
</ul>
<h3 id="interactive-execution">Interactive Execution</h3>
<p>Two modes for running Grapa code:</p>
<h4 id="interactive-