timestamp.md

Rx.Observable.prototype.timestamp([scheduler])

Ⓢ

Records the timestamp for each value in an observable sequence.

Arguments

1. [scheduler=Rx.Observable.timeout] (Scheduler): Scheduler used to compute timestamps. If not specified, the timeout scheduler is used.

Returns

(Observable): An observable sequence with timestamp information on values.

Example

var source = Rx.Observable.timer(0, 1000)
    .timestamp()
    .map(function (x) { return x.value + ':' + x.timestamp; })
    .take(5);

var subscription = source.subscribe(
    function (x) {
        console.log('Next: ' + x);
    },
    function (err) {
        console.log('Error: ' + err);
    },
    function () {
        console.log('Completed');
    });

// => Next: 0:1378690776351
// => Next: 1:1378690777313
// => Next: 2:1378690778316
// => Next: 3:1378690779317
// => Next: 4:1378690780319
// => Completed

Location

File:

• /src/core/linq/observable/timestamp.js

Dist:

• rx.all.js
• rx.all.compat.js
• rx.time.js
• rx.lite.js
• rx.lite.compat.js

Prerequisites:

• rx.js | rx.compat.js | rx.lite.js | rx.lite.compat.js

NPM Packages:

• rx

NuGet Packages:

• RxJS-All
• RxJS-Lite
• RxJS-Time

Unit Tests:

• /tests/observable/timestamp.js