description

# elementAt method

Rectangle<num> elementAt(

1. int index

)
override

Returns the `index`th element.

The `index` must be non-negative and less than length. Index zero represents the first element (so `iterable.elementAt(0)` is equivalent to `iterable.first`).

May iterate through the elements in iteration order, ignoring the first `index` elements and then returning the next. Some iterables may have a more efficient way to find the element.

Example:

    final numbers = <int>[1, 2, 3, 5, 6, 7];
    final elementAt = numbers.elementAt(4); // 6

## Implementation

    Rectangle elementAt(int index) => this[index];