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when - npm Package Versions
Changelog
1.4.0
- Create a resolved promise:
when.resolve(value)creates a resolved promise forvalue. See API docs. - Resolve/reject return something useful:
deferred.resolveanddeferred.rejectnow return a promise for the fulfilled or rejected value. - Resolve a deferred with another promise:
deferred.resolve(promise)- whenpromiseresolves or rejects, so willdeferred.
Changelog
1.3.0
- Fixed a deviation from the Promises/A spec where returning undefined from a callback or errback would cause the previous value to be forwarded. See #31
- This could be a breaking change if you depended on this behavior. If you encounter problems, the solution is to ensure that your promise callbacks (registered either with
when()or.then()) return what you intend, keeping in mind that not returning something is equivalent to returningundefined.
- This could be a breaking change if you depended on this behavior. If you encounter problems, the solution is to ensure that your promise callbacks (registered either with
- This change also restores compatibility with the promises returned by
jQuery.get(), which seem to reject with themselves as the rejection value. See issue #41 for more information and discussion. Thanks to @KidkArolis for raising the issue.
Changelog
1.2.0
promise.otherwise(errback)as a shortcut forpromise.then(null, errback). See discussion here and here. Thanks to @jonnyreeves for suggesting the name "otherwise".- when/debug now detects exceptions that typically represent coding errors, such as SyntaxError, ReferenceError, etc. and propagates them to the host environment. In other words, you'll get a very loud stack trace.