So I need to add different string variables to array and then split each of them by whitespace into array `splitted[]`

```js
var books = new Array()
var a = "Lorem Ipsum dolor sit amet"
var b = "never gonna give you up"
var c = "another string variable"
books.push(a); books.push(b); books.push(c)

var splitted = []
for (let i = 0; i < books.length; i++) {
  splitted = books[i].split(/[\s]+/)
}
console.log(splitted)
```

Expected result: `(13)['Lorem', 'Ipsum', ... 'string', 'variable']`  

Actual result: `(3)['another', 'string', 'variable']`  

So only the last variable `c` is splitted, while all three vars are in `books[]`.