es6 class practice

by Shang-De You

JavaScript

class Square
{
  constructor(width, height) {
    this._width = width;
    this._height = height;
  }
  get all() {
    return {
      width: this._width,
      height: this._height
    }
  }
}

let s = new Square(1,2)
console.log(JSON.stringify(s.all))