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使用App Inventor扩展实现多点触控：Scale Detector · App Inventor 2 中文网
...要 App Inventor Extensions 功能，该功能尚未合并到 App Inventor 版本中。 但是你可以使用我们的扩展测试服务器尝试下面描述的一些步骤：
演示打包的应用程序 ScaleGestureDemo.apk 可以像任何 apk 文件一样加载和运行。
你可以按照下...
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In HTML5, they are equivalent. Use the shorter one, it is easier to remember and type. Browser support is fine since it was designed for backwards compatibility.
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HTML table with fixed headers?
...;
</table>
</div>
This solution works in Chrome and IE. Since it is based on jQuery, this should work in other jQuery supported browsers as well.
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Combining CSS Pseudo-elements, “:after” the “:last-child”
...ind that :last-child doesn't belong to CSS3 spec, so it's not supported by IE8 and previous versions.
– Cthulhu
Jul 17 '12 at 10:50
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Safely turning a JSON string into an object
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According to this link it is supported by IE8+, although it says: Requires document to be in IE8+ standards mode to work in IE8.
– JoshuaDavid
Jan 12 '15 at 21:19
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Capturing TAB key in text box [closed]
...eventDefault() method on the event object passed to your event handler. In IE, you have to return false from the event handle. The JQuery library provides a preventDefault method on its event object that works in IE and FF.
<body>
<input type="text" id="myInput">
<script type="text/j...
Stretch and scale a CSS image in the background - with CSS only
... want that my background image stretch and scale depending on the browser viewport size.
22 Answers
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Convert integer into its character equivalent, where 0 => a, 1 => b, etc
...answered Jun 29 '10 at 21:54
Daniel VandersluisDaniel Vandersluis
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Base64Util 拓展：支持图像框、画布、文件、文本字符串、图像精灵base64编...
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Why JavaScript rather than a standard browser virtual machine?
...e use of a specialized language -- really, a specialized paradigm -- for client scripting only?
32 Answers
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