# JavaScript Debug Preferences

The following preferences can be set on the JavaScript > Debug preference page.

Option | Description | Default
--- | --- | ---
Delete the 'External JavaScript Source' project on workbench shutdown | Allows you to have the debugger automatically delete the external source project when the workbench shuts down. | Off
Suspend for all script loads | Allows you to have the debugger suspend when any script is loaded | On
Suspend on JavaScript exceptions | Allows you to have the debugger automatically suspend when an uncaught exception is thrown from running JavaScript | On