me">thisArg</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">An optional parameter which lets you supply the &#39;this&#39; context to be used when calling f. The default is to use this Set. </div></div></div></div></div></div></div></div></div><div class="qm-api-item qm-api-javascript-method qm-api-collapsible"><div class="qm-api-collapsible-hea