Download e-book for iPad: Pro PHP and jQuery (2nd Edition) by Jason Lengstorf, Keith Wald

By Jason Lengstorf, Keith Wald

Benefit from the enhanced functionality and decreased reminiscence requisites of Hypertext Preprocessor model 7, and discover ways to make the most of the recent integrated Hypertext Preprocessor capabilities and contours resembling typed variable enforcement with declare(strict_types=1) and the hot on hand facts kinds, scalar sort declarations for functionality arguments and go back statements, consistent arrays utilizing define(), argument unpacking with the ... operator, integer department with intdiv(), the null coalesce operator, the spaceship operator, new exception kinds, and enhancements to current features.

Pro Hypertext Preprocessor and jQuery, moment version is for intermediate point programmers drawn to construction internet purposes utilizing jQuery and Hypertext Preprocessor. up-to-date for Hypertext Preprocessor model 7 and the most recent model of jQuery, this publication teaches a few complex personal home page strategies and it indicates you the way to take your dynamic purposes to the subsequent point by means of including a JavaScript layer utilizing the jQuery framework and APIs.

After analyzing and utilizing this booklet, you'll come away having equipped a completely useful personal home page and jQuery internet software for you to reapply as a template in your personal specific net software.

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Extra info for Pro PHP and jQuery (2nd Edition)

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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).

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