JS Spread Operator


### Three dots operator
`...` 
![](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F91f4b1e1-9207-4d20-8d29-1b87d9f21c8e%2FUntitled.png?table=block&id=e836e9e6-517c-42b2-9018-41b02b620986&cache=v2)
```typeabc = {	...abc,	a: 5}```


### not operator

> [연산자인 것과 연산자가 아닌 것](https://overcurried.com/%EC%97%B0%EC%82%B0%EC%9E%90%EC%9D%B8%20%EA%B2%83%EA%B3%BC%20%EC%97%B0%EC%82%B0%EC%9E%90%EA%B0%80%20%EC%95%84%EB%8B%8C%20%EA%B2%83/)







