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Returns an error when a requested resource is not found or when an index is out-of-range.
This function does not generate an event.
lookup_err([message])
Argument | Type | Description |
---|---|---|
message | str (optional) | Alternative error message. |
An error value.
This code shows lookup_err():
lookup_err();
Return value in JSON format
{
"!": "lookup_err()",
"error_code": -54,
"error_msg": "requested resource not found"
}