script-header-function-args"></span></span><span class="qm-api-header-tags"></span></div></div></div></div><div class="qm-api-collapsible-content"><div class="qm-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">Removes all entries from the Set, resulting in an empty set with size 0. Returns undefined. </div></div></div></div></div><div class="qm-api-item qm-api-javascript-method qm-api-collapsible"><div class="qm-api-collapsible-heading"><div class="qm-api-collapsible-toggle"