0"><strong>Returns:</strong><dl class="param-type"><dt>Type:&nbsp;</dt><dd><span class="param-type">number</span></dd></dl></div><h3 class="name has-anchor" id="sign"><span class="type-signature"></span>sign<span class="signature">()</span><span class="type-signature"> &rarr; {number}</span></h3><div class="description"><p>Randomly returns either -1 or 1 deterministically</p></div><dl class="details"><div class="details-item-container"><dt class="tag-source bold">Source</dt><dd class="tag-source"><ul><li><a