XMLHttpRequest and AJAX Quiz

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Questions and Answers

What is the main purpose of using the XMLHttpRequest object in AJAX programming?

  • To send data to a server synchronously
  • To handle server-side scripting languages
  • To reload the entire web page
  • To fetch data from a server asynchronously (correct)

What types of data can the XMLHttpRequest object handle?

  • Text, JSON, XML, and binary (correct)
  • JSON only
  • Text only
  • XML only

What is the purpose of the XMLHttpRequest object in AJAX programming?

  • To handle different types of data, such as images
  • To reload the entire web page
  • To provide functionality for server-side scripting
  • To make HTTP requests to retrieve data from a server (correct)

What does the XMLHttpRequest object support?

<p>Various methods, properties, and events to manage the request and response process (B)</p>
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What is the abbreviation for Asynchronous JavaScript and XML?

<p>AJAX (C)</p>
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What is the purpose of the XMLHttpRequest object in AJAX programming?

<p>To fetch data from a server asynchronously (D)</p>
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What does the onreadystatechange event do in the XMLHttpRequest object?

<p>It handles the server's response (C)</p>
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What types of data can the XMLHttpRequest object handle?

<p>Text, JSON, XML, and binary (B)</p>
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What is the purpose of the XMLHttpRequest object in AJAX programming?

<p>To make HTTP requests and retrieve data from a server asynchronously (B)</p>
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What is the difference between synchronous and asynchronous requests in the XMLHttpRequest object?

<p>Synchronous requests block the user interface while waiting for a response, while asynchronous requests do not (A)</p>
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What is the purpose of the responseType property in the XMLHttpRequest object?

<p>To specify the type of data expected in the response (C)</p>
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Study Notes

XMLHttpRequest Object in AJAX Programming

  • The main purpose of the XMLHttpRequest object is to facilitate asynchronous communication between the client-side and server-side in AJAX programming.

Data Handling

  • The XMLHttpRequest object can handle various types of data, including HTML, XML, JSON, and text.

Purpose of XMLHttpRequest Object

  • The purpose of the XMLHttpRequest object is to send HTTP requests and load external data into a web page without requiring a full page reload.

XMLHttpRequest Object Capabilities

  • The XMLHttpRequest object supports both synchronous and asynchronous requests.

AJAX Acronym

  • AJAX stands for Asynchronous JavaScript and XML.

onreadystatechange Event

  • The onreadystatechange event is used to detect changes in the readyState property of the XMLHttpRequest object, which indicates the status of the request.

Synchronous vs Asynchronous Requests

  • Synchronous requests block other tasks until the request is complete, whereas asynchronous requests allow other tasks to continue executing while the request is being processed.

responseType Property

  • The responseType property specifies the type of data the XMLHttpRequest object will return, such as arraybuffer, blob, document, json, or text.

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