validateAge()
const validateAge: (value, min, max) => string;
Validates a numeric age value
Parameters
| Parameter | Type | Description |
|---|---|---|
value | string | number | The age value to validate |
min | number | The minimum allowed age |
max | number | The maximum allowed age |
Returns
string
Empty string if valid, error message if invalid
Example
validateAge("", 5, 100) // Returns: "Age is required."
validateAge("4", 5, 100) // Returns: "Please enter a valid age (5-100)."
validateAge("50", 5, 100) // Returns: ""