Understanding promises in Node.js

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Since this question still has many views (like mine) I wanted to point out that:

  1. node-promise looks rather dead to me (last commit was about 1 year ago) and contains nearly no tests.
  2. The futures module looks very bloated to me and is badly documented (and I think that the naming conventions are just bad)
  3. The best way to go seems to be the q framework, which is both active and well-documented.

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