AJAX Interview Questions, Answers, and Explanations: AJAX Certification Review

By Equity Press

The Ultimate Reference & Learning Guide for AJAX!

Contains Comprehensive Selection of Questions, Answers, and Explanations

AJAX is a must have in order for any web developer to stay current and competitive. As with any web development tool, however, it’s challenging to find sources that are not only current, but relevant to today’s business environment. AJAX Interview Questions, Answers, and Explanations: AJAX Certification Review is the guide you’ve been looking for. Whether you need to learn AJAX for the first time or merely require brushing up in order to perform well in an interview, we will help you get there.

Areas of focus include:

• AJAX for creating more interactive user interfaces
• XTLHttpRequest objects to exchange data asynchronously with the web server
• Troubleshooting in a heterogeneous setting of intranet, internet, or web-based configurations
• Permissions and security
• Markup and styling applications

• Language: English
• Publisher: Equity Press
• Release date: Jun 3, 2011
• ISBN: 9781603322379

Book preview

AJAX Interview Questions, Answers and Explanations

By: Terry Sanchez-Clark

AJAX Interview Questions, Answers and Explanations

ISBN: 978-1-60332-237-9

Smashwords Edition

Editted by Emilee Newman Bowles

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Table of Contents

Introduction

AJAX Pros

AJAX Cons

Question 1: When should AJAX be used?

Question 2: Get multiple elements by class

Question 3: Calling .Net web service

Question 4: AJAX example not working

Question 5: AJAX Auto-complete in a textbox

Question 6: AJAX and Browsers

Question 7: POST Method

Question 8: Echoing the client message from the server

Question 9: Receiving & Sending AJAX Requests & Responses

Question 10: AJAX request by POST method

Question 11: Auto Suggest Contral in JSP

Question 12: AJAX loader

Question 13: Definition of AJAX

Question 14: AJAX Keyword Suggest

Question 15: AJAX Keyword Suggest function

Question 16: Browsers supported by "AJAX Keyword Suggest

Question 17: Reporting a bug

Question 18: AJAXed.com

Question 19: Users of AJAX

Question 20: Another name of AJAX

Question 21: Type of technology

Question 22: AJAX limitations

Question 23: AJAX and traditional web applications

Question 24: Possibility to use ‘javascript+asp.net’

Question 25: Arrays as argument values

Question 26: Converting a JavaScript Object to an XML doc

Question 27: Client Access

Question 28: Int16Collection and ‘MyClassCollection’

Question 29: Using the original QueryString and Form values

Question 30: Creating a ‘DataSet’ on the client-side JavaScript

Question 31: ‘DataSet’ object

Question 32: Client-side Javascript

Question 33: C # code in AJAX

Question 34: DataSet Example

Question 35: Count down timer

Question 36: Object reference on the return function

Question 37: Error in code

Question 38: Parsing XML with JS

Question 39: Loading JSON data

Question 40: Double call

Question 41: AJAX Automatic Refresh

Question 42: Validating a form

Question 43: Images in the browser without refreshing

Question 44: Update

tag doesn't call ‘javascript’ fxn

Question 45: Additional form tags pulled in via AJAX

Question 46: Double combo list

Question 47: AJAX on ordinary hyperlink

Question 48: Build an XML file with PHP

Question 49: Two http objects in the same function

Question 50: Including variables in ‘sendRequest’(act)

Question 51: AJAX and Javascript

Question 52: Error Retrieving Data

Question 53: New e-mail on Gmail

Question 54: Countdown in IE

Question 55: Log-in doesn’t work correctly

Question 56: Tutorial link

Question 57: AJAX updater

Question 58: Rating form

Question 59: Checkbox, div, and AJAX

Question 60: Calling AJAX to do two jobs in one form

Question 61: AJAX form posting

Question 62: Form validation using AJAX/PHP/MySQL

Question 63: AJAX and I-Frames

Question 64: Hiding and showing form elements with AJAX

Question 65: Incorporate AJAX into php script

Question 66: Drop down menu creation assistance

Question 67: Returning variables from PHP

Question 68: AJAX and PHP

Question 69: AJAX Object encapsulation

Question 70: Access V B and incorporate into AJAX app

Question 71: AJAX and Browsers

Question 72: AJAX Programming code

Question 73: JS Loop

Question 74: JavaScript-AJAX Editor

Question 75: Server push using IFrame

Question 76: Background-image

Question 77: Drag and Drop implementation using AJAX

Question 78: AJAX Project Team

Question 79: Dynamic AJAX content: send POST

Question 80: Inventor of AJAX

Question 81: Different frameworks available in AJAX

Introduction

AJAX, shorthand for Asynchronous JavaScript and XML, is a web development technique for creating interactive web applications. The intent is to make web pages feel more responsive by exchanging small amounts of data with the server behind the scenes, so that the entire web page does not have to be reloaded each time the user makes a change. This is meant to increase the web page's interactivity, speed, and usability.

The AJAX technique uses a combination of:

XHTML (or HTML) and CSS, for marking up and styling information.

The DOM accessed with a client-side scripting language, especially ECMAScript implementations such as JavaScript and JScript, to dynamically display and interact with the information presented.

The XMLHttpRequest object to exchange data asynchronously with the web server. In some AJAX frameworks and in certain situations, an IFrame object is used instead of the XMLHttpRequest object