then-array
Extra methods for promises for arrays

Installation
npm install then-array
API
ArrayPromise inherits the entire API of promise but all methods return instances of ArrayPromise where they would've returned instances of Promise. Those methods are:
ArrayPromise.from(value)
ArrayPromise.all(array) / Promise.all(a, b, c, ...)
ArrayPromise.denodeify(fn)
ArrayPromise.nodeify(fn)
ArrayPromise#then(onFulfilled, onRejected)
ArrayPromise#done(onFulfilled, onRejected)
ArrayPromise#nodeify(callback)
In addition, the following methods are provided with APIs that correspond to the Array equivallents but which support promises everywhere:
ArrayPromise#reverse() returns a promise for a new array with the elements reversed
ArrayPromise#concat(args...) if args are arrays or promises for arrays it will return a promise for all the arrays concatenated together.
ArrayPromise#slice(begin[, end]) return a promise for that portion of the array
ArrayPromise#map(fn) parallel, promised map
ArrayPromise#filter(fn) parallel, promised filter
ArrayPromise#reduce(fn[, initial]) promised reduce
ArrayPromise#reduceRight(fn[, initial]) promised reduceRight
License
MIT