Several Methods to handle Javascript errors _ javascript skills

The browser will not throw an exception of the Error type. Therefore, if an exception of the Error type is caught, you can confirm that this exception is thrown by the user code, not by the browser. 1. Use window. onerror to specify the error handling function.
When an error occurs, onerror is called back. When multiple script errors exist in a JavaScript block, the script after the first error is triggered (callback) is automatically dropped and not executed.
For example:

The Code is as follows:

Test