@deathabyss/wwebjs-sender/util/Util.js

A package to send messages/buttons using constructors with the whatsapp-web.js package

/**
 * Contains various general-purpose utility methods.
 */
class Util extends null {
  /**
   * Verifies the provided data is a string, otherwise throws provided error.
   * @param {string} data The string resolvable to resolve
   * @param {Function} [error] The Error constructor to instantiate. Defaults to Error
   * @param {string} [errorMessage] The error message to throw with. Defaults to "Expected string, got <data> instead."
   * @param {boolean} [allowEmpty=true] Whether an empty string should be allowed
   * @returns {string}
   */
  static verifyString(
    data,
    error = Error,
    errorMessage = `Expected a string, got ${data} instead.`,
    allowEmpty = true
  ) {
    if (typeof data !== "string") throw new error(errorMessage);
    if (!allowEmpty && data.length === 0) throw new error(errorMessage);
    return data;
  }

  /**
   * Shallow-copies an object with its class/prototype intact.
   * @param {Object} obj Object to clone
   * @returns {Object}
   * @private
   */
  static cloneObject(obj) {
    return Object.assign(Object.create(obj), obj);
  }
}

module.exports = Util;