I'm using the `split(' ')` method in JavaScript to spilt the word for whitespaces.
For example:

I have text like: 

```
var str ="Hello this is testing"

```

After I call 

```
str.split(' ')

```

Now I will get **Hello this is tesing** as output and when I do this

```
str[2]

```

I get "l", but I want to get "**testing**" word (as per array index). How to convert str to array, so that if I put 

```
str[2] //It should be testing.

```