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Extra info for Pro PHP and jQuery (2nd Edition)
Sample text
19 Chapter 1 ■ Introducing jQuery Selecting First or Last Child Elements While very similar to :first and :last, :first-child and :last-child differ in that the returned element set can contain more than one match. foo ] Form Filters Forms are a huge part of web sites these days, and their major role inspired a set of filters specifically geared toward forms. Because your HTML example does not have any form elements in it, you’ll need to append the file with some new markup for the following examples.
Figure 2-8. The spans appear bold after wrapping them with strong tags 45 Chapter 2 ■ Common jQuery Actions and Methods The syntax used for the wrapping element is relatively forgiving, and the output shown in Figure 2-8 could have been accomplished using either "", "", or "". wrap(""); After executing the preceding line, the text in the spans will appear bold and italicized (see Figure 2-9). Figure 2-9. Span text appears bold and italicized after wrapping it with strong and em tags To use a callback function to generate the desired HTML tag to wrap an element with, you must return a tag from the callback.
Wrap(""); After executing the preceding line, the text in the spans will appear bold and italicized (see Figure 2-9). Figure 2-9. Span text appears bold and italicized after wrapping it with strong and em tags To use a callback function to generate the desired HTML tag to wrap an element with, you must return a tag from the callback. foo") ? "" : ""; }); 46 Chapter 2 ■ Common jQuery Actions and Methods After executing this snippet, the browser shows one span in italics, and the other (the one with class foo) in bold (see Figure 2-10).
