 is truncated to 8 bits (as if by <code>.toUnsigned(8)</code>) before
being stored, and the 8-bit value is zero-extended when it is loaded.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">external void operator []=(int index, int value);</code></pre>
    </section>

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