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26 KiB
26 KiB
3.7.7
- Fix browserify
3.7.6
- Add browser dist version to npm package
3.7.5
- Improve unhandled rejection formatting in ie8
3.7.4
- Add
when/keys settle
, for settling a hash of promises. - Use
poly
from npm instead of a git link in package.json. No need for git to be available to npm install when. - Various community-contributed documentation updates. Thanks!
3.7.3
- Fix console.log check when using
monitor/console
in IE8. - Fix issues with webpack environment and fake timers.
- Several community-contributed doc fixes. Thanks!
3.7.2
- Republish 3.7.1 npm package: for some reason,
npm publish
did not include the filepoll.js
when publishing 3.7.1 - No functional changes
3.7.1
- Fix
when.settle
unhandled rejection reporting case.
3.7.0
- Add
process
andwindow
unhandled rejection events for cross-library debugging tools. - Improve internal task queueing performance and memory usage.
- Stabilize handler ordering in the face of multiple promise implementations.
3.6.4
- Fix handling of
null
errors in unhandled rejection reporting - Add examples of supporting both promise and node style callbacks in the same API
3.6.3
- Fix regression in
when/callbacks
introduced in 3.6.1
3.6.2
- Work around v8 optimizing compiler bug with some truly amazing help from community members. Thank you @anodynos, @jefflage, @pbarnes, @spion, @tsouza.
- Fix regressions in
when.filter
andwhen.reduce
(which also affectedwhen/sequence
).
3.6.1
- Significant improvements to
when.try
, andwhen.lift
. - Additional improvements to array functions:
when.reduce
,when.any
, andwhen.some
. - Improved handling of early bail-out cases in
when.all
,when.map
, andwhen.any
.
3.6.0
- Significant performance improvements:
- 10x or more for
when.map
, especially for large arrays - ~2x for
when.reduce
andpromise.fold
- ~1.5-2x for generators using
when/generator
lift
,call
, and/orapply
.
- 10x or more for
- Memory use reductions for
when.reduce
andpromise.fold
.
3.5.2
- Prevent minifiers from clobbering unhandled rejection reporting if they remove
console.*
calls. Unhandled rejections will be reported even when using Uglifydrop_console
. when/function.apply
now handles passing an Arguments object directly, e.g.fn.apply(f, arguments);
. Use with care: v8 will deoptimize any function where you passarguments
to another function.
3.5.1
when.race
&Promise.race
now reject with aTypeError
if you pass something that is not iterable.- Improve scheduler compatibility with MutationObserver shims
- Simplify checks for vert.x environment
3.5.0
- Improve
when.race
&Promise.race
performance. - Internal changes to start paving the way toward 4.0.0.
- Deprecate
when.iterate
andwhen.unfold
. Use cujoJS/most for streaming asynchronous values. - Deprecate progress events. See the docs for more information and tips on refactoring code that uses promise progress.
3.4.6
- Fix webpack compatibility by excluding
vertx
from browser bundles
3.4.5
- Fixes for edge cases for unhandled rejection reporting
3.4.4
- Workaround for node 0.10.30 setTimeout bug. See this issue
3.4.3
- Improve error handling for predicate catch
- Simplify internals and reduce code size
3.4.2
- Fix for rare false negative in unhandled rejection reporting.
3.4.1
- Fix for
promise.finally
not waiting on returned promises.
3.4.0
- New
when.filter
for filtering arrays of promises. when.map
andwhen.filter
now provide the array index as the second param to their mapping and filtering functions.when/keys.map
now provides the associated key to its mapping function.- Smaller ES6 shim.
3.3.1
- Fix argument ordering bug in
when/node
introduced in 3.3.0.
3.3.0
- Promote
when.race
to public API. when.any
andwhen.some
now reject with aRangeError
if the race is obviously unwinnable, for example:when.some([1,2,3], 4)
. See thewhen.any
andwhen.some
docs for more info.
3.2.3
- Updated debugging docs
- Report when previously unhandled rejections become handled, with an ID to correlate the two messages.
- Improve unhandled rejection reporting for cases where multiple different promise implementations interleave.
3.2.2
- More mem and perf improvements
- Improvements to unhandled rejection reporting
3.2.1
- Minor mem and perf tweaks for
when.all
- Defend against
JSON.stringify
exceptions when formatting unhandled rejection output.
3.2.0
- Potentially unhandled rejections are now logged to
console.error
by default, even without usingdone
orwhen/monitor/console
. As before, enablingwhen/monitor/console
still adds long async stack traces, and usingdone
still makes errors fatal. See Debugging Promises for more info. promise.timeout
now rejects with aTimeoutError
by default (unless you specify a custom reason) for better pattern matching withpromise.catch
.- Performance improvements across the board, especially to
when.all
(andPromise.all
in the ES6-shim) andnode.lift
: lifted functions and lifting are faster now. - New
promise.fold
for combining two promises to generate a new promise. - Deprecated:
- Using
when/node.lift
,when/function.lift
, andwhen/callbacks.lift
to provide partial arguments promise.then
's 3rd argument, andwhen()
's 4th argument. Use the dedicatedpromise.progress
API to listen to promise progress events.when.some
. See https://github.com/cujojs/when/issues/288when/callbacks.promisify
See https://github.com/cujojs/when/issues/318
- Using
3.1.0
- Added optional
reason
param topromise.timeout
to specify your own timeout value. - Another significant speed bump for
when.all
(and es6-shimPromise.all
) - More
when/monitor/console
long stack trace improvements. Traces can track nested async functions even if you forget to return a promise. - Clean up bower and npm installs by ignoring more markdown files
3.0.1
- API doc updates and fixes
- Improvements to unhandled rejection long stack trace filtering
- Internal performance improvements
3.0.0
- New internal architecture with significant performance improvements and memory efficiency
- New APIs
- New liftAll variants for lifting all of an object's functions in one shot, eg.
var promisedFs = node.liftAll(require('fs'))
when.Promise
public, inheritance-friendly, Promise constructor- New ES6 Promise shim
- Check out the tips for upgrading to 3.0 from 2.x
2.8.0
- Experimental ES6 generator support via new
when/generator
module, withlift
,call
,apply
.
2.7.1
- Internal changes to reduce overall memory usage, along with minor performance improvements.
2.7.0
- Added
promise.catch
andpromise.finally
as synonyms forpromise.otherwise
andpromise.ensure
. (#212) - New browserify build for those using globals. (#209)
- Added ender support to
package.json
. (#223) - Fix compatibility with PhantomJS's CommonJS module support. (#226)
- Fix Sauce Labs tests for pull requests. (#216)
- Added
bower.json
ignore
to trim files installed via bower. (#193)
2.6.0
- New
promise.done
allows consuming the ultimate value at the end of a promise chain while ensuring that any errors are thrown to the host environment so you get loud stack traces. when/node/function
bindCallback
andliftCallback
now behave more like standard node-style APIs in that they allow exceptions to propagate to the host environment for loud stack traces.
2.5.1
ensure
now ignores non-functions, likethen
does, for consistency. (#207)
2.5.0
- Promises/A+ 1.1 compliant. Passes version 2.0.0 of the Promises/A+ test suite.
2.4.1
- New
MutationObserver
scheduler further reduces "time-to-first-handler" in modern browsers. (#198)- Also, this works around a horrible IE10 bug (desktop and mobile) that renders
setImmediate
,MessageChannel
, andpostMessage
unusable as fast task schedulers. Many thanks to @plaa and @calvinmetcalf for their help in discovering the problem and working out a solution. (#197)
- Also, this works around a horrible IE10 bug (desktop and mobile) that renders
2.4.0
- Experimental support for vert.x 2.x. Should now run in vert.x >= 1.1.0.
- New
when.isPromiseLike
as the more accurately-named synonym forwhen.isPromise
. - DEPRECATED:
when.isPromise
. It can only tell you that something is "promise-like" (aka "thenable") anyway. Use the new, more accurately-namedwhen.isPromiseLike
instead. - Fix for promise monitor reporting extra unhandled rejections for
when.all
andwhen.map
.
2.3.0
- New
promise.tap
for adding side effects to a promise chain. - New
MessageChannel
scheduler reduces "time-to-first" handler, in environments that support it. - Performance optimizations for promise resolution.
- Internal architecture improvements to pave the way for when.js 3.0.0.
2.2.1
- Fix for
when.defer().reject()
bypassing the unhandled rejection monitor. (#166) - Fix for
when/function
,when/callbacks
, andwhen/node/function
not preservingthisArg
. (#162) - Doc clarifications for
promise.yield
. (#164)
2.2.0
- New experimental promise monitoring and debugging via
when/monitor/console
. - New
when.promise(resolver)
promise creation API. A lighter alternative to the heavierwhen.defer()
- New
bindCallback
andliftCallback
inwhen/node/function
for more integration options with node-style callbacks.
2.1.1
- Quote internal usages of
promise.yield
to workaround .NET minifier tools that don't yet understand ES5 identifier-as-property rules. See #157
2.1.0
- New
when.settle
that settles an array of promises, regardless of whether the fulfill or reject. - New
when/guard
generalized concurrency guarding and limiting - New
promise.inspect
for synchronously getting a snapshot of a promise's state at a particular instant. - Significant performance improvements when resolving promises with non-primitives (Arrays, Objects, etc.)
- Experimental vert.x support
- DEPRECATED:
onFulfilled
,onRejected
,onProgress
handler arguments towhen.all
,when.any
,when.some
. Use the returned promise'sthen()
(orotherwise()
,ensure()
, etc) to register handlers instead.- For example, do this:
when.all(array).then(onFulfilled, onRejected)
instead of this:when.all(array, onFulfilled, onRejected)
. The functionality is equivalent.
- For example, do this:
2.0.1
- Account for the fact that Mocha creates a global named
process
. Thanks Narsul
2.0.0
- Fully asynchronous resolutions.
- Promises/A+ compliance.
- New
when/keys
module withall()
andmap()
for object keys/values. - New
promise.ensure
as a better, and safer, replacement forpromise.always
. See discussion as to whypromise.always
is mistake-prone.- DEPRECATED:
promise.always
- DEPRECATED:
lift()
is now the preferred name for what wasbind()
in when/function, when/node/function, and when/callbacks.- DEPRECATED:
bind()
inwhen/function
,when/node/function
, andwhen/callbacks
. Uselift()
instead.
- DEPRECATED:
1.8.1
- Last 1.x.x release before 2.0.0 barring critical fixes.
- To prepare for 2.0.0, test your code against the dev-200 branch. It is fully API compatible, but has fully asynchronous resolutions.
- Performance improvements for when/function.
- Documentation updates and fixes. Thanks, @unscriptable!
- DEPRECATED:
deferred.progress
anddeferred.resolver.progress
. Usedeferred.notify
anddeferred.resolver.notify
instead. - DEPRECATED:
when.chain
. Useresolver.resolve(promise)
orresolver.resolve(promise.yield)
(seepromise.yield
) instead. - DEPRECATED:
when/timed
module. Usewhen/delay
andwhen/timeout
modules instead.
1.8.0
- New when/function, when/node/function, and when/callbacks with functional programming goodness, and adapters for turning callback-based APIs into promise-based APIs. Kudos @riccieri!
- New when/unfold, and when/unfold/list promise-aware anamorphic unfolds that can be used to generate and/or process unbounded lists.
- New when/poll promise-based periodic polling and task execution. Kudos @scothis!
1.7.1
- Removed leftover internal usages of
deferred.then
. - when/debug allows configuring the set of "fatal" error types that will be rethrown to the host env.
1.7.0
- DEPRECATED:
deferred.then
is deprecated and will be removed in an upcoming release. Usedeferred.promise.then
instead. - promise.yield(promiseOrValue) convenience API for substituting a new value into a promise chain.
- promise.spread(variadicFunction) convenience API for spreading an array onto a fulfill handler that accepts variadic arguments. Mmmm, buttery
- Doc improvements:
- when() and promise.then() have more info about callbacks and chaining behavior.
- More info and clarifications about the roles of Deferred and Resolver
- Several minor clarifications for various APIs
- Internal improvements to assimilation and interoperability with other promise implementations.
1.6.1
- Fix for accidental coercion of non-promises. See #62.
1.6.0
- New when.join - Joins 2 or more promises together into a single promise.
- when.some and when.any now act like competitive races, and have generally more useful behavior. Read the discussion in #60.
- Experimental progress event propagation. Progress events will propagate through promise chains. Read the details here.
- Temporarily removed calls to
Object.freeze
. Promises are no longer frozen due to a horrendous v8 performance penalty. Read discussion here.- IMPORTANT: Continue to treat promises as if they are frozen, since
freeze()
will be reintroduced once v8 performance improves.
- IMPORTANT: Continue to treat promises as if they are frozen, since
- when/debug now allows setting global a debugging callback for rejected promises.
1.5.2
- Integrate @domenic's Promises/A Test Suite. Runs via
npm test
. - No functional change
1.5.1
- Performance optimization for when.defer, up to 1.5x in some cases.
- when/debug can now log exceptions and rejections in deeper promise chains, in some cases, even when the promises involved aren't when.js promises.
1.5.0
- New task execution and concurrency management: when/sequence, when/pipeline, and when/parallel.
- Performance optimizations for when.all and when.map, up to 2x in some cases.
- Options for disabling paranoid mode that provides a significant performance gain in v8 (e.g. Node and Chrome). See this v8 performance problem with Object.freeze for more info.
- Important:
deferred
anddeferred.resolver
no longer throw when resolved/rejected multiple times. They will return silently as if the they had succeeded. This prevents parties to whom only theresolver
has been given from usingtry/catch
to determine the state of the associated promise.- For debugging, you can use the when/debug module, which will still throw when a deferred is resolved/rejected multiple times.
1.4.4
- Change UMD boilerplate to check for
exports
to avoid a problem with QUnit. See #54 for more info.
1.4.3
- Fix for infinite promise coercion between when.js and Q (See #50). Thanks @kriskowal and @domenic
1.4.2
- Fix for IE8 infinite recursion (See #49)
1.4.1
- Code and unit test cleanup and streamlining--no functional changes.
1.4.0
- Create a resolved promise:
when.resolve(value)
creates a resolved promise forvalue
. See API docs. - Resolve/reject return something useful:
deferred.resolve
anddeferred.reject
now return a promise for the fulfilled or rejected value. - Resolve a deferred with another promise:
deferred.resolve(promise)
- whenpromise
resolves or rejects, so willdeferred
.
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.
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.
1.1.1
- Updated wiki map/reduce examples, and added simple promise forwarding example
- Fix for calling
when.any()
without a callback (#33) - Fix version number in
when.js
source (#36)
1.1.0
when.all/any/some/map/reduce
can all now accept a promise for an array in addition to an actual array as input. This allows composing functions to do interesting things likewhen.reduce(when.map(...))
when.reject(promiseOrValue)
that returns a new, rejected promise.promise.always(callback)
as a shortcut forpromise.then(callback, callback)
- Highly experimental when/debug module: a drop-in replacement for the main
when
module that enables debug logging for promises created or consumed by when.js
1.0.4
- Travis CI integration
- Fix for cancelable deferred not invoking progress callbacks. (#24 Thanks @scothis)
- The promise returned by
when.chain
now rejects when the input promise rejects.
1.0.3
- Fix for specific situation where
null
could incorrectly be used as a promise resolution value (#23)
1.0.2
- Updated README for running unit tests in both Node and Browsers. See Running the Unit Tests below.
- Set package name to 'when' in package.json
1.0.1
- Fix for rejections propagating in some cases when they shouldn't have been (#19)
- Using buster.js for unit tests now.
1.0.0
- First official when.js release as a part of cujojs.
- Added when/cancelable decorator for creating cancelable deferreds
- Added when/delay and when/timeout helpers for creating delayed promises and promises that timeout and reject if not resolved first.
0.11.1
- Added when/apply helper module for using arguments-based and variadic callbacks with
when.all
,when.some
,when.map
, or any promise that resolves to an array. (#14) .then()
,when()
, and all other methods that accept callback/errback/progress handlers will throw if you pass something that's not a function. (#15)
0.11.0
when.js
now assimilates thenables that pass the Promises/A duck-type test, but which may not be fully Promises/A compliant, such as jQuery's Deferred and curl's global API (See the API at a glance section)when()
, andwhen.all/some/any/map/reduce/chain()
are all now guaranteed to return a fully Promises/A compliant promise, even when their input is not compliant.- Any non-compliant thenable returned by a callback or errback will also be assimilated to protect subsequent promises and callbacks in a promise chain, and preserve Promises/A forwarding guarantees.
0.10.4
- Important Fix for some AMD build/optimizer tools: Switching back to more verbose, builder-friendly boilerplate
- If you are using when.js 0.10.3 with the dojo or RequireJS build tools, you should update to v.10.4 as soon as possible.
0.10.3
Warning: This version will not work with most AMD build tools. You should update to 0.10.4 as soon as possible.
- Minor
package.json
updates - Slightly smaller module boilerplate
0.10.2
- Performance optimizations for
when.map()
(thanks @smitranic), especially for large arrays where themapFunc
is also async (i.e. returns a promise) when.all/some/any/map/reduce
handle sparse arrays (thanks @rwaldrn)- Other minor performance optimizations
0.10.1
- Minor tweaks (thanks @johan)
- Add missing semis that WebStorm didn't catch
- Fix DOH submodule ref, and update README with info for running unit tests
0.10.0
when.map
andwhen.reduce
- just like Array.map and Array.reduce, but they operate on promises and arrays of promises- Lots of internal size and performance optimizations
- Still only 1k!
0.9.4
- Important fix for break in promise chains