cooperative/filter.js

cooperative threading versions of map, filter, forEach, etc, suitable for big processing in single-threaded Node.js

var map = require('./map')

module.exports = function filter(array, predicate, options) {
  return map(array, predicate, options).then(function(predicates) {
    return array.filter(function (item, index) { return predicates[index] })
  })
}