JavaScript & DHTML Cookbook, 2nd Edition by Danny Goodman PDF

By Danny Goodman

ISBN-10: 0596514085

ISBN-13: 9780596514082

In modern internet 2.0 international, JavaScript and Dynamic HTML are on the heart of the new new method of designing hugely interactive pages at the consumer aspect. With this atmosphere in brain, the recent variation of this e-book deals bite-sized suggestions to very particular scripting difficulties that net builders mostly face. each one recipe incorporates a concentrated piece of code so that you can insert correct into your software. Why is JavaScript & DHTML Cookbook so well known? After analyzing hundreds of thousands of discussion board threads through the years, writer and scripting pioneer Danny Goodman has compiled an inventory of difficulties that often vex scripters of varied adventure degrees. for each challenge he addresses, Goodman not just bargains code, yet a dialogue of ways and why the answer works. Recipes variety from basic projects, akin to manipulating strings and validating dates in JavaScript, to whole libraries that display advanced initiatives, similar to cross-browser positioning of HTML parts, sorting tables, and imposing Ajax good points at the patron.

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Extra info for JavaScript & DHTML Cookbook, 2nd Edition

Example text

The string can conceivably contain an error message, but you can modify the function to change how errors are reported. Discussion In the now rare case that you need number formatting for browsers such as IE 5 or Netscape 4, you can use the formatNumber( ) reusable utility function shown in Example 2-1. It also works in the newest browsers. Example 2-1. length - decplaces; // assemble final result from: (a) the string up to the position of // the decimal point; (b) the decimal point; and (c) the balance // of the string.

Frankly, there hasn’t been a big need for Base64 encoding in most scripted web pages, but that’s perhaps because the facilities weren’t readily available. A Base64encoded string contains a very small character set: a–z, A–Z, 0–9, +, /, and =. This low common denominator scheme allows data of any type to be conveyed by virtually any Internet protocol. Binary attachments to your email are encoded as Base64 strings for their journey en route. Your email client decodes the simple string and generates the image, document, or executable file that arrives with the message.

Your email client decodes the simple string and generates the image, document, or executable file that arrives with the message. You may find additional ways to apply Base64-encoded data in your pages and scripts. txt. 12 for URL-encoding techniques. 0 Introduction Designers of friendly scripting languages might have nonprogrammers in mind when they first define the scope of their languages, but it’s difficult for any such language to be taken seriously by professional programmers unless some of the nerdy basics are there.

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JavaScript & DHTML Cookbook, 2nd Edition by Danny Goodman


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