1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
# function-loop
Run a list of functions in order in a given object context. The
functions can be Promise-returning to do async operations, or return
anything else if they are done synchronously.
This module is
[zalgo-exposing](http://blog.izs.me/post/59142742143/designing-apis-for-asynchrony),
meaning that synchronous returns will result in a sync call to the supplied
cb, and async calls will result in the done callback being called
asynchronously. The loop will return a Promise indicating when it is
finished, if any async functions are encountered. It does not artificially
defer if functions are called synchronously.
## API
`loop(context, functionList, doneCallback, errorCallback)`
Run all the functions in the context of the `context` object, and then
call the `doneCallback` or call the `errorCallback` if there are any
errors.
Functions can return a Promise to do async operations, or not if they are
done synchronously. Throws are reported to the `errorCallback` provided.
Return value is a Promise if any of the functions are asynchronous, or
`undefined` otherwise.
|
