2726.Calculator-with-Method-Chaining.ts

class Calculator {
  private result: number;

  constructor(value: number) {
    this.result = value;
  }

  add(value: number): Calculator {
    this.result += value;
    return this;
  }

  subtract(value: number): Calculator {
    this.result -= value;
    return this;
  }

  multiply(value: number): Calculator {
    this.result *= value;
    return this;
  }

  divide(value: number): Calculator {
    if (value === 0) throw "Division by zero is not allowed";
    this.result /= value;
    return this;
  }

  power(value: number): Calculator {
    this.result **= value;
    return this;
  }

  getResult(): number {
    return this.result;
  }
}