ither</a>&lt;<span class="type">L</span>, <span class="type">R</span>&gt;</span>):<span class="type">Bool</span></code></p></h3><div class="doc"><p>Indicates if the either has a Left value</p></div></div><div class="field "><a name="isRight"></a><h3><p><code><span class="label">static</span><a href="#isRight"><span class="identifier">isRight</span></a>&lt;<span class="type">L</span>, <span class="type">R</span>&gt; (<span style="white-space:nowrap">either:<a class="type" title="Either wraps one value of two