| Value | Meaning |
|---|---|
| Alert0 | Alert script dialog, used to show a message to the user. |
| Confirm1 | Confirm script dialog, used to ask confirmation to the user. |
| Prompt2 | Prompt script dialog, used to ask information to the user. |
| BeforeUnloadConfirm3 | Before unload confirm dialog, used to ask confirmation to leave the current page to the user. Since 2.12 |
Enum values used for determining the type of #WebKitScriptDialog