The javascript anthology 101 essential tips tricks hacks - phần 8 pdf

... Explorer, though they measure the distance from the mouse cursor to the edges of the browser window. In order to find the position of the cursor relative to the entire page, we need to add the current ... we check whether the cursor position plus the size of the layer is greater than the viewport size (minus an allowance for scrollbars). If part of the layer is going...

Ngày tải lên: 13/08/2014, 09:20

... false); 4 http://www.sitepoint.com/blogs/2004/05/26/closures-and-executing -javascript- on-page-load/ 235Order the print version of this book to get all 588 pages! The W3C Way (Event Listeners) ... browsers; the while loop then finds the first non-text-node parent if the target reported by the browser happens to be a text node. If we want to retrieve the element that was clicke...

Ngày tải lên: 13/08/2014, 09:20

... Writing the Data in a Text Field 103 Reading and Setting the State of a Checkbox 106 Order the print version of this book to get all 588 pages!iv The JavaScript Anthology The JavaScript Anthology: 101 ... 279 Complexity of the Animation 280 The Speed of the Computer 280 The Speed of the Browser 281 Implementing Drag-and-drop Behavior 281 Reordering a List Using...

Ngày tải lên: 13/08/2014, 08:21

... to another file: and the Sony PSP, as well as legacy JavaScript browsers such as Opera 5 and Netscape 4. The last point in the list above is arguably the least likely (apart from other de- velopers ... server-side scripts, and then manage the results on the client side. We’ll be looking into these technologies in depth in Chapter 18. Security Restrictions As JavaScript operat...

Ngày tải lên: 13/08/2014, 08:21

... external JavaScript file named what-is -javascript. js. The file should contain the code that you would otherwise put inside the script element, like this: File: what-is -javascript. js function saySomething(message) { ... explain the specifics of the error itself. Figure 1.2. The JavaScript console in Opera Figure 1.3. The JavaScript console in Windows IE Order the pri...

Ngày tải lên: 13/08/2014, 08:21

... help format the code in the way it was written in the source file. Order the print version of this book to get all 588 pages !86 Chapter 5: Navigating the Document Object Model Navigating the Document ... specified node node.nextSibling the next node in the document that has the same parent as the specified node node.previousSibling the previous element that’s on the...

Ngày tải lên: 13/08/2014, 08:21

... pixels, then across by 200 pixels, then to a point that’s 300 pixels from the left and 100 pixels from the top, then back to the top corner. Getting the Viewport Size (the Available Space inside the ... available, the script can trigger a click event handler that passes its href to the makePopup function, along with the other settings. The return value of the handler depe...

Ngày tải lên: 13/08/2014, 09:20

... you’ve enjoyed these chapters from The JavaScript Anthology: 101 Tips, Tricks & Hacks, why not order yourself a copy? The JavaScript Anthology: 101 Tips, Tricks & Hacks is the ultimate ... desk." The JavaScript Anthology: 101 Essential Tips, Tricks & Hacks also includes download access to all of the best practice code samples used th...

Ngày tải lên: 13/08/2014, 09:20

... listeners accessible drop-down menu, 419 Order the print version of this book to get all 588 pages!5 78 Index usability accessible DHTML menus, 421–4 28 drag-and-drop effects, 283 frames and, 135 inline ... 462 stopDefaultAction function, 236 drag-and-drop effects, 287 Opera tooltip display, 253 Safari bug, 3 68 Order the print version of this book to get all 588 pages! 584 Index sc...

Ngày tải lên: 13/08/2014, 09:20

... Jerky 2 78 Animation Frame Times 279 Changing Between Frames 279 Complexity of the Animation 280 The Speed of the Computer 280 The Speed of the Browser 281 Implementing Drag-and-drop Behavior 281 Reordering ... 377 Opening the Current Sub-branch Automatically 3 78 Summary 383 16. JavaScript and Accessibility 385 Is JavaScript Inaccessible? 386 What is Accessibility? 386...

Ngày tải lên: 08/03/2014, 20:20