Build a human-readable constraint description string.
Returns undefined when no constraint worth announcing is present.
Pattern hints are suppressed when a format is set because the
format already implies the pattern and the resulting copy would be
misleading ("Must match pattern" alongside a format: "email" field
would read as if the schema required a non-email regex).
Build a human-readable constraint description string.
Returns
undefinedwhen no constraint worth announcing is present. Pattern hints are suppressed when aformatis set because the format already implies the pattern and the resulting copy would be misleading ("Must match pattern" alongside aformat: "email"field would read as if the schema required a non-email regex).