markdown Object.assign与两个参数

Posted 2021-05-06

1. `Object.assign` handle object copy and modefy

```

const object1 = {
  a: 1,
  b: 2,
  c: 3
};

const object2 = {
  c: 4,
};

const object3 = Object.assign({}, object1, object2);

Object.keys(object3).forEach(attr => {
  console.log(attr);
  console.log(object3[attr]);

})


```

[open in code open](https://codepen.io/qqxu/pen/VyEPYW?editors=1111)