<thead><tr><th>name</th><th>Type</th><th>Required</th><th>Description</th></tr></thead><tbody><tr><td>first</td><td>String|Component</td><td>yes</td><td>The event type or other component</td></tr><tr><td>second</td><td>function|String</td><td>yes</td><td>The event handler or event type</td></tr><tr><td>third</td><td>function</td><td>yes</td><td>The event handler</td></tr></tbody></table><p class="vjs-only"><em id="onFooter">Defined in <a href="https://github.com/videojs/video.js/blob/master/src/js/component