| Name | Description | Value |
| JavaScriptExecutionMode.BEFORERUNNING | Show the JavaScript debugger when the first line of the JavaScript executes. |
int
3
|
| JavaScriptExecutionMode.NEVER | Never show the JavaScript debugger. Treat runtime errors by throwing a JavaScript exceptions. |
int
1
|
| JavaScriptExecutionMode.ONRUNTIMEERROR | Show the JavaScript debugger if a runtime error occurs. |
int
2
|