export function valuesMatch(firstName, ...fieldNames: Array<string>): (formData) => any | undefined {
    return formData => {
        const doNotMatch = [firstName, ...fieldNames].some(fieldName => {
            return fieldNames.some(fieldToCompare => formData[fieldToCompare] !== formData[fieldName]);
        });

        if (!doNotMatch || [undefined, ''].includes(formData[firstName])) {
            return undefined;
        }

        return { doNotMatch };
    };
}