Which event will invoke when uncaught JavaScript exceptions occur?Chọn đáp án đúng:onhaltonerrorBoth onhalt and onerroronsuspend

To determine which event will invoke when uncaught JavaScript exceptions occur, we need to understand how JavaScript handles errors.

1. Understanding the Events: JavaScript has several event handlers related to errors. The most commonly used are onerror and onunhandledrejection, which handle runtime errors and unhandled promise rejections, respectively. The onhaltonerror event is not a standard event in JavaScript.

2. Analysis of Options:

   • onhaltonerror: This is not a standard event in JavaScript for catching uncaught exceptions.
   • Both onhalt and onerror: "onhalt" is not a recognized error event, while onerror is correct.
   • onsuspend: This is not related to uncaught exceptions but usually pertains to events in task scheduling or media handling.

3. Correct Answer: The event that invokes when uncaught JavaScript exceptions occur is onerror.

Therefore, the correct answer is onerror.