Mbinte Binafsi katika Urithi katika OOP katika JavaScript

Mbinte binafsi hazirithiwi. Hii imefanywa kwa makusudi, ili kuzuia kiwango cha siri. Hebu tuangalie kwa mfano. Tuchukulie tuna darasa la mzazi lifuatalo na mbinte binafsi:

javascriptclass User {
  setName(name) {
    this.name = name;
  }
  getName() {
    return this.#capeFirst(this.name);
  }
  
  #capeFirst(str) {
    return str[0].toUpperCase() + str.slice(1);
  }
}

Tuchukulie darasa lifuatalo linarithi kutoka kwa darasa la mzazi:

javascriptclass Student extends User {
  setSurn(surn) {
    this.surn = surn;
  }
  getSurn() {
    return this.surn;
  }
}

Tuchukulie mzaa anataka kutumia mbinte binafsi ya mzazi. JavaScript haitaruhusu hii na itatoa hitilafu:

javascriptclass Student extends User {
  setSurn(surn) {
    this.surn = surn;
  }
  getSurn() {
    return this.#capeFirst(this.surn); // itakuwa na hitilafu
  }
}