The javascript anthology 101 essential tips tricks hacks - phần 2 ppt

... 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 ... because de- tecting JavaScript support from the server is notoriously unreliable, but the figures I’ve seen put the proportion of users who have JavaScript switched off betw...

Ngày tải lên: 13/08/2014, 08:21

... HTML 22 9 Handling Events 22 9 The Short Way: Using Event Handlers 23 0 The W3C Way (Event Listeners) 23 3 Finding the Size of an Element 24 5 Finding the Position of an Element 24 6 Detecting the Position ... the Computer 28 0 The Speed of the Browser 28 1 Implementing Drag-and-drop Behavior 28 1 Reordering a List Using Drag-and-drop Functionality 29 0 Making a Scro...

Ngày tải lên: 13/08/2014, 08:21

... kind of event-driven script. 5 This technique was pioneered by Simon Willison [http://www.sitepoint.com/blogs /20 04/05 /26 /closures-and-executing -javascript- on-page-load/]. 17Order the print version ... 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 print version of this boo...

Ngày tải lên: 13/08/2014, 08:21

... 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 same level as the specified node If any of these properties ... accessible via JavaScript. The DOM isn’t just restricted to HTML and JavaScript, though. Here’s how the W3C DOM specification site 2 explains t...

Ngày tải lên: 13/08/2014, 08:21

... scroll down by 20 0 pixels, then across by 20 0 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 ... target = target.parentNode; 2 The CSS 3 working draft includes a set of target properties for link presentation [http://www.w3.org/TR /20 04/WD-css3-hyperlinks -2 0 04...

Ngày tải lên: 13/08/2014, 09:20

... false); 4 http://www.sitepoint.com/blogs /20 04/05 /26 /closures-and-executing -javascript- on-page-load/ 23 5Order 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...

Ngày tải lên: 13/08/2014, 09:20

... 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 ... (cursorPosition[1] - scrollingPosition[1] + 10 + tip.offsetHeight > viewportSize[1] - 25 ) { if (event.clientX > (viewportSize[0] - 25 - tip.offset...

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 ... example, 483 drag-and-drop effects, 28 2 image swapping, 169 soccer ball animation, 27 2 tooltip example, 25 1 WYSIWYG editor, 4 92 addRule method, IE, 22 1, 22 6 AJAX...

Ngày tải lên: 13/08/2014, 09:20

... switching, 20 7 built-in, 21 1 loading delays and, 563 media types and, 21 5 style sheets (see also CSS) adding new rules, 22 0 creating, 22 4 deleting rules, 22 3 drop-down menu example, 323 , 326 , 330, ... 3 92 icons accessible drag-and-drop functional- ity, 401 caching, 376 folder tree menus, 3 62, 371, 373 identifyBrowser function, 197, 22 2, 22 6, 510 identity operator, 50 If...

Ngày tải lên: 13/08/2014, 09:20

... Frames 27 9 Complexity of the Animation 28 0 The Speed of the Computer 28 0 The Speed of the Browser 28 1 Implementing Drag-and-drop Behavior 28 1 Reordering a List Using Drag-and-drop Functionality 29 0 Making ... Based on the Value of other Fields 121 Summary 125 7. Working with Windows and Frames 127 Using Popup Windows 128 What’s Wrong with Popups? 128 How Do I Mini...

Ngày tải lên: 08/03/2014, 20:20