Function validate_index

dash/_validate.py:397–403

(name, checks, index)

def validate_index(name, checks, index):
    missing = [i for check, i in checks if not re.compile(check).search(index)]
    if missing:
        plural = "s" if len(missing) > 1 else ""
        raise exceptions.InvalidIndexException(
            f"Missing item{plural} {', '.join(missing)} in {name}."
        )


def validate_layout_type(value):