New PDF release: JavaScript: The Missing Manual

By David Sawyer McFarland

ISBN-10: 0596515898

ISBN-13: 9780596515898

JavaScript is an important language for developing glossy, interactive web pages, yet its complicated principles problem even the main skilled internet designers. With JavaScript: The lacking Manual, you are going to speedy find out how to use JavaScript in subtle methods -- with out soreness or frustration -- whether you might have very little programming experience.

JavaScript professional David McFarland first teaches you the fundamentals through having you construct an easy application. Then you are going to the way to paintings with jQuery, a favored library of pre-built JavaScript parts that is loose and straightforward to exploit. With jQuery, you could fast construct smooth, interactive websites -- with no need to script every little thing from scratch!

  • Learn the way to upload scripts to an internet web page, shop and control info, speak with the browser window, reply to occasions like mouse clicks and shape submissions, and establish and regulate HTML
  • Get real-world examples of JavaScript in motion
  • Learn to construct pop-up navigation bars, improve HTML tables, create an interactive picture gallery, and make net types extra usable
  • Create attention-grabbing consumer interfaces with tabbed panels, accordion panels, and pop-up conversation packing containers
  • Learn to prevent the 10 most typical blunders new programmers make, and the way to discover and connect insects
  • Use JavaScript with Ajax to speak with a server in order that your websites can obtain details with no need to reload

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Html in this case) and the line number the error occurs (line 9). Best of all, it even indicates the line containing the error with an arrow. Warning: Although the error console draws an arrow pointing to the location where Firefox encountered the error, that’s not always where you made the mistake. Sometimes you need to fix your code before or after that arrow. Figure 1-6: Firefox’s JavaScript console identifies errors in your programs. The console keeps a list of errors for previous pages as well, so pretty soon the list can get very long.

You do this using something called an escape character. If you precede the quote mark with a backward slash (\), the quote is treated as part of the string. \ "". In some cases, an escape character is the only choice. "' Because the string is enclosed by single quotes, the lone single quote in the word “isn’t” has to have a backward slash before it: isn\'t. You can even escape quote marks when you don’t necessarily have to—as a way to make it clear that the quote mark should be taken literally.

Write( ) is a JavaScript command that literally writes out whatever you place between the opening and closing parentheses.

is added to the page: a paragraph tag and two words. 3. Save the page, and open it in a Web browser. ” appear below the red headline (see Figure 1-3). Note: The tutorial files you downloaded also include the completed version of each tutorial. If you can’t seem to get your JavaScript working, compare your work with the file that begins with complete_ in the same folder as the tutorial file.

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JavaScript: The Missing Manual by David Sawyer McFarland

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