e the second <emu-nt><a href="https://tc39.es/ecma262/#prod-AssignmentExpression">AssignmentExpression</a></emu-nt>.</li><li>Return ?&nbsp;<emu-xref aoid="EvaluateSliceNotation" id="_ref_16"><a href="#sec-evaluate-slice-notation">EvaluateSliceNotation</a></emu-xref>(<var>baseValue</var>, <var>startExpression</var>, <var>endExpression</var>).</li></ol></emu-alg>
    </emu-clause>

    <emu-clause id="sec-optional-chaining-chain-evaluation">
      <h1><span class="secnum">7.2.3</span> Runtime Semantics: Chain