m-head"><div class="qm-api-item-header qm-api-item-header-function"><span class="qm-api-javascript-header-function-signature qm-api-header-details qm-code-font" id="delete"><span class="qm-api-javascript-header-function-name">delete</span><span class="qm-api-javascript-header-function-args"><span class="qm-api-javascript-header-function-arg"><span class="qm-api-javascript-header-function-arg-name">key</span><span class="qm-api-javascript-header-function-arg-type"><span class="qm-api-type"><a class="qm-api-t