/*
* Call functions in serial until someone resolved.
* @param {Array} iterable the array to iterate with.
* @param {Array} iteratee returns a new promise.
* The iteratee is invoked with three arguments: (value, index, iterable).
*/
function anySeries (iterable, iteratee) {
var ret = Promise.reject(new Error('init'))
iterable.forEach(function (item, idx) {
ret = ret.catch(e => iteratee(item, idx, iterable))
})
return ret
}
/*
* Call functions in serial until someone rejected.
* @param {Array} iterable the array to iterate with.
* @param {Array} iteratee returns a new promise.
* The iteratee is invoked with three arguments: (value, index, iterable).
*/
function mapSeries (iterable, iteratee) {
var ret = Promise.resolve('init')
var result = []
iterable.forEach(function (item, idx) {
ret = ret
.then(() => iteratee(item, idx, iterable))
.then(x => result.push(x))
})
return ret.then(() => result)
}
exports.anySeries = anySeries
exports.mapSeries = mapSeries
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