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preventDefault() 方法定义和用法取消事件的默认动作。语法event.preventDefault()说明该方法将通知 Web 浏览器不要执行与事件关联的默认动作(如果存在这样的动作)。例如,如果 type 属性是 "submit",在事件传播的任意阶段可以调用任意的事件句柄,通过调用... 阅读全文
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Thankfully, Sjoerd Visscher created the "HTML5 Enabling JavaScript", "the shiv": The code above is a comment, but versions previous to IE9 will read i... 阅读全文
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New HTML5 API's (Application Programming Interfaces)The most interesting new API's are:HTML GeolocationHTML Drag and DropHTML Local StorageHTML Applic... 阅读全文
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Question:I have created a dbml file in my project, and then dragged two tables from a database into the designer. This is the tables for order header ... 阅读全文