</span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">wait </span><span class="jsdoc-syntax">=== </span><span class="jsdoc-keyword">void </span><span class="jsdoc-syntax">0) { </span><span class="jsdoc-var">wait </span><span class="jsdoc-syntax">= 250; }
</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">previous </span><span class="jsdoc-syntax">= 0;
</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">timeout </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">null</span><span class="jsdoc-syntax">;
</span><span class="jsdoc-keyword">if </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">wait </span><span class="jsdoc-syntax">=== </span><span class="jsdoc-keyword">void </span><span class="jsdoc-syntax">0) { </span><span class="jsdoc-var">wait </span><span class="jsdoc-syntax">= 250; }
</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">previous </span><span class="jsdoc-syntax">= 0;
</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">timeout </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">null</span><span class="jsdoc-syntax">;