轉自: http://jackyrong.iteye.com/blog/1687977
1) element.classList
詳細的可以參考
https://developer.mozilla.org/en-US/docs/DOM/element.classList
這裏簡單說下,它其實是一個快速對某個元素的class進行操作的新的DOM API了,比如
包括了add,remove,toggle,contains的方法,比如
myDiv.classList.add('myCssClass');
myDiv.classList.remove('myCssClass');
myDiv.classList.toggle('myCssClass'); //now it's added
myDiv.classList.toggle('myCssClass'); //now it's removed
myDiv.classList.contains('myCssClass'); //returns true or false
現在的瀏覽器支持情況爲:
chrome 8.0+,ie 10,opera 11.5,safari 5.1
2) ContextMenu 上下文菜單 API
這個API是HTML 5的,用來可以生成簡單的可以點擊的上下文菜單,能給用戶快速的選擇和顯示,比如
- <section contextmenu="mymenu">
- <!--
- For the purpose of cleanliness,
- I'll put my menu inside the element that will use it
- -->
- <!-- add the menu -->
- <menu type="context" id="mymenu">
- <menuitem label="Refresh Post" οnclick="window.location.reload();" icon="/images/refresh-icon.png"></menuitem>
- <menu label="Share on..." icon="/images/share_icon.gif">
- <menuitem label="Twitter" icon="/images/twitter_icon.gif" οnclick="goTo('//twitter.com/intent/tweet?text=' + document.title + ': ' + window.location.href);"></menuitem>
- <menuitem label="Facebook" icon="/images/facebook_icon16x16.gif" οnclick="goTo('//facebook.com/sharer/sharer.php?u=' + window.location.href);"></menuitem>
- </menu>
- </menu>
- </section>
3 element.dataset
這個API用來獲得鍵值對的時候很有用:
比如:
- <div id="myDiv" data-name="myDiv" data-id="myId" data-my-custom-key="This is the value"></div>
則通過下面這些可以獲得鍵值對,這個用在jquery mobile中很實用:
- // 獲得元素
- var element = document.getElementById("myDiv");
- // 獲得id
- var id = element.dataset.id;
- // 獲得data-my-custom-key"
- var customKey = element.dataset.myCustomKey;
- // 設置新的值
- element.dataset.myCustomKey = "Some other value";
4 postMessage API
這個居然在IE 8後就支持了,可以支持在不同domain的iframe中傳遞消息
- // From window or frame on domain 1, send a message to the iframe which hosts another domain
- var iframeWindow = document.getElementById("iframe").contentWindow;
- iframeWindow.postMessage("Hello from the first window!");
- // From inside the iframe on different host, receive message
- window.addEventListener("message", function(event) {
- if(event.origin == "http://davidwalsh.name") {
- // Log out the message
- console.log(event.data);
- // Send a message back
- event.source.postMessage("Hello back!");
- }
- ]);
5 autofocus
這個很簡單了,自動focus到控件
<input autofocus="autofocus" />
<button autofocus="autofocus">Hi!</button>
<textarea autofocus="autofocus"></textarea>