What type of validation check is shown above?

Question

BlackTom AI · Accepted Answer

The snippet provided shows a validation step that determines whether the entered value is numeric and prompts the user if it isn’t. 
Option a. Data type: This aligns with a check on the input's data type, ensuring it is numeric and rejecting non-numeric values with a message. 
Option b. Range: This would require verifying the value lies within a specified minimum and maximum; there is no such boundary check demonstrated here. 
Option c. Format: A format check would involve a pattern (like digits in a certain arrangement or punctuation), which is not what's being tested in the example. 
Option d. Presence: A presence check would confirm that the field is not empty; the focus here is specifically on numeric type rather than merely being filled in. 
In summary, the behavior shown corresponds to validating the input’s data type (numeric) rather than range, format, or presence checks.

What type of validation check is shown above?

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