a><span class="token operator">&gt; </span><a href="use-toggle-either.html"><span class="token function">useToggleEither</span></a><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">defaultValue<span class="token operator">: </span><a href="use-toggle-either.html">L</a><span class="token operator">?</span><span class="token operator"> = </span>null<span class="token punctuation">, </span></span><span class="parameter ">reverseValue<span class="token operator">: </span