# last

Returns the last element of an observable sequence that satisfies the condition in the predicate if specified, else the last element.

## Arguments

1. `predicate` _(`Function`)_: A predicate function to evaluate for elements in the source sequence. The callback is called with the following information:
   1. the value of the element
   2. the index of the element
   3. the Observable object being subscribed
2. `[thisArg]` _(`Any`)_: Object to use as `this` when executing the predicate.

## Returns

_(`Observable`)_: Sequence containing the last element in the observable sequence that satisfies the condition in the predicate.

## Example

### No Match

### Without predicate

### With predicate
