{"json_modified": "2016-07-09T04:03:34.554589", "uuid": "9ac4c33c-62cb-4f8f-b31f-4effc14b7387", "title": "DOM on-event handlers", "url": "/en-US/docs/Web/Guide/Events/Event_handlers", "tags": ["NeedsBeginnerUpdate", "DOM", "NeedsUpdate", "beginner", "Beginner"], "translations": [{"uuid": "5e41059c-05c3-4d28-b63e-a50cb1b26397", "title": "DOM \u4e8b\u4ef6\u56de\u8c03", "url": "/zh-CN/docs/Web/Guide/Events/Event_handlers", "tags": [], "summary": "A possible way to get notified of <a href=\"/zh-CN/docs/Web/API/Event\" title=\"&#x672C;&#x7AE0;&#x8BB2;&#x8FF0; Gecko &#x6240;&#x5B9E;&#x73B0;&#x7684; DOM Level 2 &#x4E8B;&#x4EF6;&#x6A21;&#x578B;&#x3002; &#x4E3B;&#x8981;&#x5185;&#x5BB9;&#x6709;Event &#x63A5;&#x53E3;&#xFF0C;&#x4EE5;&#x53CA;&#x7528;&#x4E8E;&#x6CE8;&#x518C; DOM &#x4E2D;&#x7ED3;&#x70B9;&#x4E8B;&#x4EF6;&#x7684;&#x63A5;&#x53E3;&#x3001;&#x4E8B;&#x4EF6;&#x5904;&#x7406;&#x51FD;&#x6570;&#x548C;&#x4E8B;&#x4EF6;&#x76D1;&#x542C;&#x5668;&#xFF0C;&#x8FD8;&#x6709;&#x51E0;&#x4E2A;&#x8F83;&#x957F;&#x7684;&#x793A;&#x4F8B;&#x7528;&#x4E8E;&#x6F14;&#x793A;&#x5404;&#x79CD;&#x4E8B;&#x4EF6;&#x63A5;&#x53E3;&#x5982;&#x4F55;&#x5F7C;&#x6B64;&#x5173;&#x8054;&#x3002;\"><code>Event</code></a>s of a particular type (such as <code><a href=\"/zh-CN/docs/Web/Reference/Events/click\" title=\"/zh-CN/docs/Web/Reference/Events/click\">click</a></code>) for a given object is to specify the <strong>event handler</strong> using:", "localization_tags": [], "locale": "zh-CN", "last_edit": "2014-05-15T21:56:17", "review_tags": []}], "modified": "2016-07-09T04:03:34", "label": "DOM on-event handlers", "localization_tags": [], "locale": "en-US", "id": 5122, "last_edit": "2016-03-12T14:38:33", "summary": "The Web platform provides several ways to get notified of <a href=\"/en-US/docs/Web/Events\">DOM events</a>.\u00a0 Two common\u00a0styles are: the generalized <a href=\"/en-US/docs/Web/API/EventTarget/addEventListener\" title=\"The EventTarget.addEventListener() method registers the specified listener on the EventTarget it's called on. The event target may be an Element in a document, the Document itself, a Window, or any other object that supports events (such as XMLHttpRequest).\"><code>addEventListener()</code></a> and a set of specific\u00a0<em><strong>on-event</strong></em> handlers. This page focuses on the details of how the latter work.", "sections": [{"id": "Summary", "title": "Summary"}, {"id": "Registering_on-event_handlers", "title": "Registering "}, {"id": "Non-element_objects", "title": "Non-element objects"}, {"id": "Details", "title": "Details"}, {"id": "The_value_of_HTML_on<...>_attributes_and_corresponding_JavaScript_properties", "title": "The value of HTML on<...> attributes and corresponding\u00a0 JavaScript properties"}, {"id": "Event_handler's_parameters_this_binding_and_the_return_value", "title": "Event handler's parameters, "}, {"id": "When_the_event_handler_is_invoked", "title": "When the event handler is invoked"}, {"id": "Terminology", "title": "Terminology"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_Compatibility", "title": "Browser compatibility"}, {"id": "Event_handler_changes_in_Firefox_9", "title": "Event handler changes in Firefox 9"}, {"id": "Detecting_the_presence_of_event_handler_properties", "title": "Detecting the presence of event handler properties"}, {"id": "Event_handlers_and_prototypes", "title": "Event handlers and prototypes"}], "slug": "Web/Guide/Events/Event_handlers", "review_tags": []}