Last errors
Last errors : Collection
| Parameter | Type | Description | |
|---|---|---|---|
| Function result | Collection | ← | Collection of error objects |
Description
The Last errors command returns the current stack of errors of the 4D application as a collection of error objects, or null if no error occurred. The stack of errors includes objects sent by the throw command, if any.
Each error object contains the following attributes:
| Property | Type | Description |
|---|---|---|
| errCode | number | Error code |
| message | text | Description of the error |
| componentSignature | text | Signature of the internal component which returned the error |
note
For a description of component signatures, please refer to the Error codes section.
This command must be called from an on error call method installed by the ON ERR CALL command.
See also
ON ERR CALL
throw
Error handling
Properties
| Command number | 1799 |
| Thread safe | ✓ |