BetweenDate checks if the date is between the given dates Has two parameters: minDate (time.Time), maxDate (time.Time).

IsAlphanumeric checks if the data is alphanumeric excluding space.

IsEmail checks if the data is a valid email address.

IsISO8601 checks if the data is a valid ISO8601 date.

IsISO8601Date checks if the data is a valid ISO8601 date.

IsOnlyDigits checks if the data contains only digits.

IsPhone checks if the data is a valid phone number.

IsUUID checks if the data is a valid UUID.

Length checks if the data is between min and max characters long Has one parameter: length (int).

Max checks if the data is at most max Has one parameter: max (any number type, except complex).

MaxCount checks if the length of the array/slice/map is less than or equal to the given number Has one parameter: max (int).

MaxDate checks if the date is before the given date Has one parameter: maxDate (time.Time).

MaxLength checks if the data is at most max characters long Has one parameter: max (int).

Min checks if the data is at least min Has one parameter: min (any number type, except complex).

MinCount checks if the length of the array/slice/map is greater than or equal to the given number Has one parameter: min (int).

MinDate checks if the date is after the given date Has one parameter: minDate (time.Time).

MinLength checks if the data is at least min characters long Has one parameter: min (int).

NewBuilder creates a new Builder.

Numeric checks if the given value is a number.

OneOf checks if the data is in the collection Has one parameter named "collection" which is a slice of strings.

Range checks if the data is between min and max Has two parameters: min (any number type, except complex), max (same type as min).

Required checks if the data is nil or empty string.