Adobe Experience Manager and Platform (AEM AEP) Developer with Ajax Salary in 2024

Where is Ajax used?

Real-Time Form Validation

• Imagine typing your life story and knowing instantly if it's a hit or a flop. That's AJAX in forms, saving you from the trauma of rejection at submission.

Spiffy Chat Applications

• Thanks to AJAX, conversations flow online like a mountain spring, without the whole page refreshing like it's got a case of the hiccups.

Vote Without Reload Depression

• Click that upvote and watch the numbers climb like a squirrel on an energy drink—no more page reloads, no more waiting, pure satisfaction!

The Never-Ending Content Potion

• Gone are the days of the "Next Page" button, AJAX magic keeps feeding you content until you scream "Enough!", like a bottomless bowl of digital pasta.

Ajax Alternatives

Fetch API

Modern alternative to Ajax that uses promises. Enables making network requests for asynchronous operations in JavaScript.

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data));

• Syntax is cleaner and more readable than XMLHttpRequest.

• Built-in promise support for better asynchronous handling.

• Lacks support in Internet Explorer.

WebSocket

Communication protocol providing full-duplex communication channels over a single TCP connection. Ideal for real-time data transfer.

let socket = new WebSocket('ws://example.com/socket');
socket.onmessage = function(event) {
  console.log('Data received:', event.data);
};

• Enables real-time, two-way communication.

• Suitable for chat applications or live feeds.

• More complex to setup and require server-side support.

Server-Sent Events (SSE)

Server-sent events enable servers to push data to the browser client-side using a unidirectional communication channel.

let evtSource = new EventSource('https://api.example.com/events');
evtSource.onmessage = function(e) {
  console.log('Message:', e.data);
};

• Native browser support for automatic reconnection.

• Ideal for updating clients with server-side changes.

• Communication is only from server to client.

Quick Facts about Ajax

The Birth of a Web Revolution: AJAX

Once upon a time in the year 2005, the Earth witnessed the birth of a web phenomenon known as AJAX. The term was coined by Jesse James Garrett. He wasn't a cowboy, but a web developer who gave us a new way to create snappy web pages that could refresh content without reloading. It was like giving web pages the ability to be ninjas, moving swiftly and silently without the user even noticing!

    function ninjaVanish(elementId, url) {
      var xhttp = new XMLHttpRequest();
      xhttp.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 200) {
          document.getElementById(elementId).innerHTML = this.responseText;
        }
      };
      xhttp.open("GET", url, true);
      xhttp.send();
    }

The Technological Medley: AJAX’s DNA

AJAX isn't just one thing; it's like a tech smoothie. It blends existing technologies such as HTML, CSS, JavaScript, the Document Object Model (DOM), and the XMLHttp API to whip up dynamic web pages. It was like a Voltron of web development tools, each part coming together to form a mighty warrior that could update user interfaces on the fly!

    function techSmoothieUpdater() {
      var xhttp = new XMLHttpRequest();
      // Mix in the HTML/CSS juice
      xhttp.open("GET", "stylish-content.html", true);
      // Add JavaScript berries
      xhttp.onload = function() {
        // Splash some DOM oranges
        document.getElementById('delicious-div').innerHTML = this.responseText;
      };
      // Don't forget the XMLHttp API coconut
      xhttp.send();
    }

The Rise of the Asynchronous Warriors

Guess what? AJAX doesn't always involve XML! Despite its name, Asynchronous JavaScript and XML, developers realized they could switch out XML for JSON, which is like giving the asynchronous warriors a lighter, faster sword. With JSON, data transmission became more efficient, like going from sending messages with a carrier pigeon to using a turbo-charged drone!

    function asyncWarrior(endpoint) {
      var xhttp = new XMLHttpRequest();
      xhttp.responseType = 'json';
      xhttp.onload = function() {
        if (xhttp.status == 200) {
          console.log("Data received:", xhttp.response);
        }
      };
      xhttp.open("GET", endpoint, true);
      xhttp.send();
    }

What is the difference between Junior, Middle, Senior and Expert Ajax developer?

Top 10 Ajax Related Tech

1. 
   

   JavaScript

   
   

   
   Picture JavaScript as the chatty backbone of AJAX, always talking back and forth between clients and servers like it's got some juicy gossip. It's the scripting language that started the AJAX party, allowing web pages to update asynchronously by exchanging data with the server behind the scenes.

   
   

   
           // Sample AJAX request using JavaScript
           var xhr = new XMLHttpRequest();
           xhr.onreadystatechange = function() {
               if (xhr.readyState == XMLHttpRequest.DONE) {
                   if (xhr.status === 200) {
                       console.log(xhr.responseText);
                   }
               }
           };
           xhr.open('GET', 'your-endpoint', true);
           xhr.send(null);
           

1. 
   

   jQuery

   
   

   
   This grandmaster of libraries comes with an easy-peasy lemon-squeezy AJAX module. jQuery wrapped AJAX like a sushi roll, making it more palatable (read: easier to use) for humans who scratch their heads at raw JavaScript.

   
   

   
           // Sample AJAX request with jQuery
           $.ajax({
               url: 'your-endpoint',
               success: function(data) {
                   console.log('Data received!', data);
               }
           });
           

1. 
   

   XMLHttpRequest (XHR)

   
   

   
   Like the old-timer at the office who knows all the ropes, XHR is the classic way to AJAX. But don't let its age fool you; this workhorse still powers a ton of AJAX under the hood. However, get ready to write some extra lines of code if you invite it to your coding party.

   
   

   
           // Creating a new XMLHttpRequest
           var xhr = new XMLHttpRequest();
           

1. 
   

   Fetch API

   
   

   
   The cool new intern of the group, Fetch API promises (pun intended) to make asynchronous HTTP requests feel like a pleasant walk in the park. Ditching the baggage of the XHR, Fetch API strides in with a much cleaner and modern-looking coat.

   
   

   
           // Sample Fetch API usage
           fetch('your-endpoint')
               .then(response => response.json())
               .then(data => console.log(data))
               .catch(error => console.error('Oops!', error));
           

1. 
   

   Axios

   
   

   
   Emerging from the JavaScript dojo, Axios is a lean, mean, AJAXing machine. It's all about conquering HTTP requests with its promise-based armor, making it a fan favorite for those seeking to write readable and compact code.

   
   

   
           // Using Axios for AJAX
           axios.get('your-endpoint')
               .then(function (response) {
                   console.log(response.data);
               })
               .catch(function (error) {
                   console.log(error);
               });
           

1. 
   

   ReactJS

   
   

   
   Not just a pretty face for building user interfaces, ReactJS can tango with AJAX too. With the power of component lifecycle methods, React developers can sync up with servers seamlessly, like an elegant dance of data fetching and updating views.

   
   

   
           // Example of AJAX in React Component
           componentDidMount() {
               fetch('your-endpoint')
                   .then(response => response.json())
                   .then(data => this.setState({ data }));
           }
           

1. 
   

   Vue.js

   
   

   
   Like the friend who insists on bringing a casserole to every gathering, Vue.js adds its own flavor to AJAX calls. It's reactive, component-based, and plays rather nicely with libraries like Axios or Fetch to serve up data just like grandma's home cooking.

   
   

   
           // Making AJAX requests in a Vue.js component
           this.$http.get('your-endpoint')
               .then(response => {
                   this.data = response.data;
               }, error => {
                   console.error(error);
               });
           

1. 
   

   Angular

   
   

   
   As if it's wearing a Swiss-army suit, Angular comes equipped with its own magical toolbox for AJAX called HttpClient. It's a framework that doesn't just dip its toes in AJAX; it does cannonballs, thanks to its powerful built-in features and obsessive-compulsive organization skills.

   
   

   
           // AJAX with Angular's HttpClient
           import { HttpClient } from '@angular/common/http';
   
           constructor(private http: HttpClient) {}
   
           fetchData() {
               this.http.get('your-endpoint').subscribe(data => {
                   console.log('We got data!', data);
               });
           }
           

1. 
   

   Async/Await

   
   

   
   One word: Sorcery. Async/Await turns your AJAX code into a mesmerizing sequence of synchronous-looking incantations while maintaining its asynchronous soul. No more callback hell, no more nested promises; just a straight (magical) path to data retrieval.

   
   

   
           // Example of async/await with Fetch
           async function fetchData() {
               try {
                   const response = await fetch('your-endpoint');
                   const data = await response.json();
                   console.log('Data spell successful!', data);
               } catch (error) {
                   console.error('Spell failed:', error);
               }
           }
           

1. 
   

   WebSockets

   
   

   
   Whenever AJAX feels like taking a nap, WebSockets jumps in. It's the extrovert of real-time browser-server communication, keeping an open line for constant chit-chat without the need for repeat HTTP request handshakes. It's like keeping a phone line open rather than sending text messages.

   
   

   
           // Opening a WebSocket connection
           var socket = new WebSocket('your-websocket-endpoint');
   
           socket.onmessage = function(event) {
               console.log('New real-time data!', event.data);
           };