You often need to handle multiple user interactions set to different streams. This lesson shows hows Observable.merge behaves like a "logical OR" to have your stream handle one interaction OR another. After click the start buttion, we wnat the l…
Combining input streams then using scan to track the results is a common scenario when coding with streams. This lesson walks you through setting up two buttons and merging their input events together to build a streaming Counter component. const Cou…
Refactoring streams in RxJS is mostly moving pieces of smaller streams around. This lessons demonstrates a simple refactoring by requiring the StopWatch to be more configurable. Code we have now: const Observable = Rx.Observable; const startButton =…
When a stream has completed, you often need to evaluate everything that has happened while the stream was running. This lesson covers how to use reduce to collect values and total up a “score” of this simple game. const Observable = Rx.Observable; co…
Like RxJS switchMap() is a shortcut for map() and switch(), we will see in this lesson how mergeMap() is a shortcut for map() and mergeAll(), and learn its arguments for customised behavior. const clickObservable = Rx.Observable .fromEvent(document,…
Splitting a stream into multiple streams causes new subscriptions. You can think of new subscriptions as "invoking a function". So if your original stream makes a request for data, splitting the original stream will make 2 requests for data. The…
While you have multiple streams flowing into your scan operator, you'll need to map each stream to the specific values you need to update your state the way that you want. This lesson covers using the map operator to determine what the click and inte…
源文地址 (September 2008) For the last couple of years, I've been working on European Space Agency (ESA) projects - writing rather complex code generators. In the ESA project I am currently working on, I am also the technical lead; and I recently faced t…
本文转自:http://damieng.com/blog/2009/01/22/multiple-outputs-from-t4-made-easy One of the things I wanted my LINQ to SQL T4 templates to do was be able to split the output into a file-per-entity. Existing solutions used either a separate set of templates…
