item-header qm-api-item-header-function"><span class="qm-api-javascript-header-function-signature qm-api-header-details qm-code-font" id="linear"><span class="qm-api-javascript-header-function-name">linear</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">input</span><span class="qm-api-javascript-header-function-arg-type"><span class="qm-api-type"><a class="qm-api-type-link" href="https://d