javascript 使用解构分配从嵌套对象分配变量

Posted 2021-05-03

// declaring object with nested objects as properties
const a = {
  start: { x:5, y: 6 },
  end: { x:6, y: -9 }
};

const { start : { x:startX, y:startY }} = a;    // destructuring
console.log(startX, startY);  // 5, 6