## The `arguments` object and `...rest` parameters syntax

- Especially useful when you don't know the number of arguments in a function
- Or when destructing an object and you want the remaining properties in a separate object 
- Prefer rest parameters when writing ES6
- One advantage of using `...rest` syntax for function arguments is that the result will be an actual array, unlike `arguments`, which is an _array-like_ object. The latter doesn't have built-in array methods like `.map()` and such.


## `for...of` loop

- to iterate over values in an iterable. 
- don't use `for...in` (Note that it's for a different purpose and can cause unexpected problems, TODO demo these problems)


## getters and setters

```
TODO code example
```


## Use `Object.entries()` to get all values in an array.

The arguments object and ...rest parameters syntax

for...of loop

getters and setters

Use Object.entries() to get all values in an array.

The `arguments` object and `...rest` parameters syntax

`for...of` loop

Use `Object.entries()` to get all values in an array.