jQuery in Action phần 3 ppt

... used within a jQuery chain of operations. In addition to finding elements in a wrapped set that match a selector, jQuery also provides a method to find elements that contain a specified string. ... that results in a jQuery wrapped set. Because of the way jQuery chaining works, this expression can also include com- mands, making this a powerful Lab for examining the operations...

Ngày tải lên: 05/08/2014, 09:46

... wrapped set. Showing and hiding elements 133 Figure 5 .3 Clicking active elements causes their contents to be revealed. The jQuery Event Model 1 03 These commands give us many choices to bind an event ... which shows a page containing the image in a time-lapse display of the page in three states: 1 On initial display 2 After clicking the image once 3 After clicking the image again...

Ngày tải lên: 05/08/2014, 09:46

... start. 9.4.1 Mouse interactions Interacting with the mouse pointer is an integral and core part of any GUI. Although many simple mouse pointer interactions are built into web interfaces (clicking, for ... not surprising that many jQuery plugins focus on enabling rich user interfaces. In this section, we’ll introduce the official UI Plugin, an important and recent addition to the jQ...

Ngày tải lên: 05/08/2014, 09:46

... inventory data 229 8 .3 Making GET and POST requests 233 Getting data with jQuery 234 ■ Getting JSON data 236 Making POST requests 248 8.4 Taking full control of an Ajax request 249 Making Ajax requests ... 219 ■ Initiating the request 221 Keeping track of progress 222 ■ Getting the response 2 23 8.2 Loading content into elements 224 Loading content with jQuery 226 ■ Loading...

Ngày tải lên: 05/08/2014, 09:46

... function in section 7.2. 1.4 Summary In this whirlwind introduction to jQuery we’ve covered a great deal of material in preparation for diving into using jQuery to quickly and easily enable Rich Inter- net ... enterprising jQuery users have extended jQuery with sets of useful functions that are known as plugins. We’ll be talking more about extending jQuery in this way, as...

Ngày tải lên: 05/08/2014, 09:46

... dimensions in this area 56 CHAPTER 3 Bringing pages to life with jQuery previous format of attr() ; the function is invoked for each individual element in the matched set. WARNING Internet Explorer ... wrapped set. Setting element content 75 Sometimes, rather than inserting elements into other elements, we want to do the opposite. Let’s see what jQuery offers for that. 3. 3 .3...

Ngày tải lên: 05/08/2014, 09:46

... built into core jQuery, let’s investigate writing our own! 5 .3 Creating custom animations The number of core effects supplied with jQuery is purposefully kept small (in order to keep jQuery s ... basic. 6 .3. 1 Trimming strings Almost inexplicably, the JavaScript String implementation doesn’t possess a method to remove whitespace characters from the beginning and end of a string...

Ngày tải lên: 05/08/2014, 09:46

... loaded. The jQuery plugin authoring guidelines 187 of this chapter, we’ll examine the guidelines and patterns that allow us to create jQuery plugins and we’ll create a few of our own. In the following ... in use later in this chapter and in jQuery functions that will be introduced in chapter 8. But for now, let’s finally look at how we extend jQuery with our own utility fu...

Ngày tải lên: 05/08/2014, 09:46

... identified the following pain points that page authors using Ajax need to deal with: Loading content into elements 229 8.2.2 Loading dynamic inventory data Often in business applications, ... presented in the following single syntax description: Each of these global callbacks is invoked at a certain point during the processing of an Ajax request or conditionally depending upon the...

Ngày tải lên: 05/08/2014, 09:46