vcard4/src/parameters/ValueParameter.js

An RFC 6350 compliant JavaScript library for generating and parsing version 4.0 vCards. Can also generate RFC 6351 compliant XML vCards and RFC 7095 compliant jCards. TypeScript type declarations are provided.

import { BaseParameter } from "./BaseParameter.js";
import { MissingArgument, InvalidArgument } from "../errors/index.js";

export class ValueParameter extends BaseParameter {
  static param = "VALUE";
  static identifier = "ValueParameter";

  #valueType;

  get value() {
    const type = this.#valueType.type || this.#valueType.constructor.type;
    return type.toLowerCase();
  }

  get valueXML() {
    return "";
  }

  get valueJSON() {
    return [];
  }

  #validate(valueType) {
    if (typeof valueType === "undefined")
      throw new MissingArgument("Value for ValueParameter must be supplied");

    if (
      !Object.prototype.hasOwnProperty.call(valueType, "type") &&
      !Object.prototype.hasOwnProperty.call(valueType.constructor, "type")
    )
      throw new InvalidArgument("Value for ValueParameter not recognized");
  }

  constructor(valueType) {
    super();

    this.#validate(valueType);
    this.#valueType = valueType;

    this.checkAbstractPropertiesAndMethods();
    Object.freeze(this);
  }
}

Object.freeze(ValueParameter);