text: "use strict";
  
  class StringBuilder {
    constructor(string) {
      this._value = string;
    }
  
    get value() {
      return this._value;
    }
  
    append(string) {
      this._value = this._value + string;
    }
  
    prepend(string) {
      this._value = string + this._value;
    }
  
    pad(string) {
      this._value = string + this._value + string;
    }
  }
  
  const builder = new StringBuilder(".");
  
  builder.append("^");
  console.log(builder.value);
  
  builder.prepend("^");
  console.log(builder.value);
  
  builder.pad("=");
  console.log(builder.value);
  