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JavaScript

AJAX in JavaScript

Introduction to JavaScript
What is JavaScript? How it works? History of JavaScript
Basic Concepts in JavaScript
Variables Data Types Operators Control Flow
Functions and Data Structures
Functions Builtin functions Userdefined functions Parameters and Arguments Arrays Indexes and length Array methods
ObjectOriented JavaScript
Object and Properties Constructors Inheritance Prototype
DOM Manipulation
What is DOM? Accessing HTML elements with JavaScript Manipulating HTML elements with JavaScript Events and event handling
Asynchronous JavaScript
Callbacks Promises Async/await Asynchronous data loading AJAX
jQuery
What is jQuery? Selecting and manipulating HTML elements with jQuery jQuery events
Browser APIs
Working with Web Storage Location API Navigator API Geolocation API Canvas API
Expressions and Regular Expressions
Boolean expressions Regular expressions
Debugging and Testing JavaScript
Debugging basics Chrome Developer Tools Unit testing Testing frameworks
JavaScript Libraries and Frameworks
Introduction to libraries and frameworks React.js Angular.js Vue.js Node.js
Deploying JavaScript Applications
Deploying for the Web Hosting options
Ecmascript6 Features
Classes Arrow functions Promises Destructuring of Objects and Arrays Default parameters and Spread Operator
Security and Best Practices in JavaScript
Security basics Best practices for writing safe and maintainable JavaScript code Code optimization techniques
Conclusion
Recap of the course Next Steps.

AJAX

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#description

AJAX (Asynchronous JavaScript and XML) is a technique used in web development to allow for data to be requested from a server asynchronously without refreshing the entire web page. This provides a smoother and more seamless user experience. It involves using JavaScript and XMLHTTPRequest objects to send and receive data.

With AJAX, you can load data from a server without triggering a full page reload. For example, if you wanted to update a view count on a post, you could use AJAX to send the updated count to the server and receive a confirmation without the user having to reload the page. This makes for a much smoother user experience.

To use AJAX, you must first create an XMLHttpRequest object in JavaScript. This object allows you to send HTTP requests and receive responses back from a server. You can then use the object's open() and send() methods to send your request and receive a response.

AJAX can be used in combination with other technologies, such as JSON and APIs, to create dynamic and interactive web applications. It has revolutionized web development by allowing for real-time updates without the need for a full page reload.

March 25, 2023

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