Common sequencing patterns
Promise and deferred enables us to represent simple tasks combined with complex tasks to a fine-grained control over their sequences.
As mentioned earlier, deferred is an object that represents work that is not being done yet and promise is an object representing a value that is currently unknown. This concept helps us write asynchronous JavaScript, similar to how we write synchronous code.
Promises make it comparatively easy to abstract small pieces of functionality shared across multiple asynchronous tasks. Let's take a look at the most common sequencing patterns that promises makes easier:
- Stacked
- Parallel
- Sequential
Stacked
Stacked binds multiple handlers anywhere in the application to the same promise event. This helps ...
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