Returns the element at a specified index in a sequence.
Usage
Return the 2nd element in the sequence0, 1, 2 like this:
```js
var elementAt = require('@kingjs/linq.element-at');
var sequence = require('@kingjs/enumerable.create');
elementAt.call(sequence(0, 1, 2), 1);
```
result:
```js
1
```
API
```ts declare function elementAt( this: Enumerable, index: number ): any ```Interfaces
Enumerable: See @kingjs/enumerable.define.
Parameters
this: The sequence to traverse.
index: The 0 based index of of the sequence to return.
