Rx.Observable.prototype.takeLast(count)
Returns a specified number of contiguous elements from the end of an observable sequence, using an optional scheduler to drain the queue.
This operator accumulates a buffer with a length enough to store elements count elements. Upon completion of the source sequence, this buffer is drained on the result sequence. This causes the elements to be delayed.
Arguments
count
(Number
): Number of elements to bypass at the end of the source sequence.
Returns
(Observable
): An observable sequence containing the source sequence elements except for the bypassed ones at the end.
Example
var source = Rx.Observable.range(0, 5)
.takeLast(3);
var subscription = source.subscribe(
function (x) {
console.log('Next: ' + x);
},
function (err) {
console.log('Error: ' + err);
},
function () {
console.log('Completed');
});
// => Next: 2
// => Next: 3
// => Next: 4
// => Completed
Location
File:
Dist:
Prerequisites:
- None
NPM Packages:
NuGet Packages:
Unit Tests: