What do I need to know to create my own AJAX functionality?

AJAX

If you plan not to reuse and existing AJAX component here are some of the things you will need to know.

Plan to learn Dynamic HTML (DHTML), the technology that is the foundation for AJAX. DHTML enables browser-base real time interaction between a user and a web page. DHTML is the combination of JavaScript, the Document Object Model (DOM) and Cascading Style Sheets (CSS).

* JavaScript - JavaScript is a loosely typed object based scripting language supported by all major browsers and essential for AJAX interactions. JavaScript in a page is called when an event in a page occurs such as a page load, a mouse click, or a key press in a form element.

* DOM - An API for accessing and manipulating structured documents. In most cases DOM represent the structure of XML and HTML documents.

* CSS - Allows you to define the presentation of a page such as fonts, colors, sizes, and positioning. CSS allow for a clear separation of the presentation from the content and may be changed programmatically by JavaScript.

Understanding the basic request/response nature of HTTP is also important. Many subtle bugs can result if you ignore the differences between the GET and OIst methods when configuring an XMLHttpRequest and HTTP response codes when processing callbacks.

JavaScript is the client-side glue, in a sense. JavaScript is used to create the XMLHttpRequest Object and trigger the asynchronous call. JavaScript is used to parse the returned content. JavaScript is used to analyze the returned data and process returned messages. JavaScript is used to inject the new content into the HTML using the DOM API and to modify the CSS.

Gallery

Comments

Submit Reviews:

Rate

Review

Security Code

(Enter the characters seen on the image below.)

Promotional Ads

Packers and movers in Mohali
Plot No 636, Near HP Gas Agency, Dariya, Chandigarh - 160101
Mohali

Submersible Sludge Pumps
18, shreenath Estate, cross road, nr. Nikol, nr. Sardar Patel Ring Road, Kathwada, Gujarat 382415
Ahmedabad

Bhakti Bird Proofing
House no.9479 durgamata tekdi vibhag, mahalaxmi nagar, City ambernath, Near durgamata temple. Pin Code-421501
Motilal Nagar Mumbai

Livonta Global Pvt.Ltd
1110, Colonnade, B/H Iscon Temple, Opp. Iscon BRTS Bus Stand
Iscon - Ambali Rd,
Ahmedabad

Brij Agnihotri & associates company secretaries
3454, 40D, Sector 40D, Chandigarh, 160036, India

JB Rock Bolts & SN BOLTS
10 A & B Industrial Area (at Vill. Nangal Jarialan)
Distt. Una Himachal Pradesh
Una

Govinda resorts Lonavala
Old Mumbai - Pune Hwy, Maval, Lonavala, Maharashtra 410405
Lonavla

Steelco Metal & Alloys
192 – Minara Mansion, Shop No.6, Sant Sena Maharaj Marg, 2nd Kumbharwada Lane, Mumbai, Maharashtra 400004
Mumbra Mumbai

Best Resorts in Dharamshala Amid the Misty Hills.
SATOBARI HILLS ROAD,MCLEODGANJ,
Dharamshala

Genius Global School
194 Anand Vihar Saproon, Solan, Himachal Pradesh
Ambala Cantt