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What is Synchronous AJAX Requests?

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Understanding Synchronous Execution

In synchronous AJAX requests, the browser halts its execution until the request is complete. This means that the user interface becomes unresponsive during the request.

Syntax for Synchronous Requests


var xhr = new XMLHttpRequest();
xhr.open('GET', 'example-url', false); // false for synchronous
xhr.send();

// Process the response

Limitations and Issues

  • May result in a poor user experience due to unresponsiveness.
  • Increases the likelihood of timeouts and delays.
  • Not recommended for time-consuming operations.