@transferwise/neptune-validation/src/value-validators/index.ts

Neptune Web validation

import { isString, isObject, isArray } from '../type-validators';

/**
 * Checks empty values for arrays, objects and strings.
 */
export const isEmpty = (value: unknown) =>
  (isString(value) && value.length === 0) ||
  ((isObject(value) || isArray(value)) && Object.keys(value).length === 0);