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Most trusted JOB oriented professional program
DevOps Certified Professional (DCP)

Take your first step into the world of DevOps with this course, which will help you to learn about the methodologies and tools used to develop, deploy, and operate high-quality software.

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DevOps to DevSecOps – Learn the evolution
DevSecOps Certified Professional (DSOCP)

Learn to automate security into a fast-paced DevOps environment using various open-source tools and scripts.

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Get certified in the new tech skill to rule the industry
Site Reliability Engineering (SRE) Certified Professional

A method of measuring and achieving reliability through engineering and operations work – developed by Google to manage services.

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Master the art of DevOps
Master in DevOps Engineering (MDE)

Get enrolled for the most advanced and only course in the WORLD which can make you an expert and proficient Architect in DevOps, DevSecOps and Site Reliability Engineering (SRE) principles together.

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Gain expertise and certified yourself
Azure DevOps Solutions Expert

Learn about the DevOps services available on Azure and how you can use them to make your workflow more efficient.

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Learn and get certified
AWS Certified DevOps Professional

Learn about the DevOps services offered by AWS and how you can use them to make your workflow more efficient.

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AJAX Crash Course

What is AJAX ?

  • Asynchronous Javascript & XML
  • Set of web technologies
  • Send & receive data asynchronously
  • Does not interfere with current web page
  • JSON has replaced XML for the most part

Why XmlHttpRequest (XHR) Object is Used ?

  • API in the form of an object
  • Provided by the browser’s JS environment
  • Methods transfer data between client/server
  • Can be used with other protocols than HTTP
  • Can work with data other than XML (JSON, plain text)

How to retrieve data from sample.txt files through AJAX?

First of all, you should create an ajax1.html and one sample.txt file. then copy and paste the below codes to view the result. for below code testing. place the file in htdocs folder of xampp and open URL like this: http://localhost/ajax/ajax1.html

ajax1.html

sample.txt

How to retrieve data from json files through AJAX?

there are some example code for this. so you can check out below:

ajax2.html

users.json

How to retrieve data from external API through AJAX?

please look the codes of ajax3.html and url of external source i.e : https://api.github.com/users

How to retrieve data from database through AJAX?

users.php

there are 4 examples explained above for retrieving data from different locations by the help of Ajax. so this example are very easy to understand and apply it to your project easily. so if you hava any confusion then watch this video: Link .

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Chandan Kumar
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