Function validateData

3p/3p.js:212–233

(data, mandatoryFields, opt_optionalFields)

 * @param {Array<string>=} opt_optionalFields
 */
export function validateData(data, mandatoryFields, opt_optionalFields) {
  let allowedFields = opt_optionalFields || [];
  for (let i = 0; i < mandatoryFields.length; i++) {
    const field = mandatoryFields[i];
    if (Array.isArray(field)) {
      validateExactlyOne(data, field);
      allowedFields = allowedFields.concat(field);
    } else {
      userAssert(
        // Allow zero values for height, width etc.
        data[field] != null,
        'Missing attribute for %s: %s.',
        data.type,
        field
      );
      allowedFields.push(field);
    }
  }
  if (opt_optionalFields) {
    validateAllowedFields(data, allowedFields);
  }
}

/**
 * Throws an exception if data does not contains exactly one field