Error Handling Operators
Error handling operators allow DataLogic rules to handle exceptions and unexpected cases gracefully.
try
throw
try
The try operator attempts to evaluate an expression and returns a fallback value if an error occurs.
Syntax
{ "try": [expression, fallback] }Parameters
| Parameter | Description |
|---|---|
| expression | Expression to try to evaluate |
| fallback | Value to return if evaluation fails |
Example: Safe Division
Rule:
Data:
Result:
Example: Handling Missing Data
Rule:
Data:
Result:
throw
The throw operator throws an error with a custom message, interrupting the evaluation unless caught by a try operator.
Syntax
{ "throw": "Error message" }Parameters
| Parameter | Description |
|---|---|
| error_message | Error message to throw |