When caught, an exception is reified into an exception reference, a value of the new type exnref.

Learning resources on MDN

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Browser support

• Chrome ❌
• Chrome Android ❌
• Edge ❌
• Firefox 131 Released on 2024-10-01
• Firefox for Android 131 Released on 2024-10-01
• Safari ❌
• Safari on iOS ❌

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