Download Ajax for Web Application Developers (Developer's Library) by Kris Hadlock PDF

By Kris Hadlock

Reusable elements and styles for Ajax-driven functions   Ajax is among the newest and maximum how you can increase clients’ on-line event and create new and cutting edge net performance. through permitting particular elements of an online web page to be displayed with out clean the complete web page, Ajax considerably complements the adventure of net purposes. It additionally we could internet builders create intuitive and cutting edge interplay approaches.   Ajax for net software builders offers the in-depth operating wisdom of Ajax that net builders have to take their net purposes to the following point. The publication indicates the best way to create an Ajax-driven internet software from an object-oriented viewpoint, and it comprises dialogue of a number of helpful Ajax layout styles.   This certain advisor covers the construction of connections to a MySQL database with personal home page five through a customized Ajax engine and indicates tips to gracefully structure the reaction with CSS, JavaScript, and XHTML whereas maintaining the information tightly safe. It additionally covers using 4 customized Ajax-enabled elements in an program and the way to create each one of them from scratch.   the ultimate element of the booklet combines the person code examples and methods from previous chapters of the e-book into one higher, Ajax-driven application–an inner net mail software that may be utilized in any user-based program, comparable to a community-based internet program. Readers will examine not just tips on how to create and use their very own reusable Ajax elements during this software but additionally how one can attach their elements to any destiny Ajax functions that they may construct.   internet Development/Ajax/JavaScript   $34.99 united states / $43.99 CAN / ?24.99 web united kingdom  

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This solution allows us to call an item in an array by name rather than by an index number, which obviously makes it easier to target specific items. This can be useful when trying to replicate a hash map of sorts, which is not a native data type in JavaScript. Here is a sample of the syntax for this option. var employee = new Array(); employees["firstName"] = "Kris"; employees["lastName"] = "Hadlock"; 43 44 Chapter 5 Object-Oriented JavaScript As you can see, this option may make it easier to target specific items, but again, imagine having to create multiple employees.

Write(); to write the value directly to the location in which we place this line of code. Let’s take a deeper look at parsing the response. Parsing XML When planning the format and tag names that you will be using in your XML, it is important to keep a number of things in mind. This will eliminate parsing issues when using JavaScript’s intrinsic getElementsByTagName method. Using this method will return an array of all the elements by the name that you specify without looking at the depth in which they reside.

Later in the book we will learn how to create HTML elements dynamically via the DOM, but for now we will keep it simple and add content to previously created div elements. These div tags will later be stylized with CSS and separated from the item data that we will associate with these categories. In other words, we will basically be creating a grid of corresponding data from the response. Now that we have the header div elements created, we will add div elements to the item data and associate the action and icon for each.

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