Optional

• Optional(rule: AbstractRule)

Validates if the given input is optional or not. By optional we consider None or an empty string ('').

v.optional(v.alpha()).validate('')  # true
v.optional(v.digit()).validate(None)  # true

Categorization

• Nesting

Changelog

Version	Description
1.0.0	Created

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See also:

• NoWhitespace
• NotBlank
• NotEmpty
• NotOptional
• NoneType
• Nullable