iter-tools-es/impls/$compress/compress.js

The iterable toolbox

const {
  ensureIterable
} = require('../../internal/iterable.js');

const {
  curry
} = require('../../internal/curry.js');

const {
  __zip
} = require('../$zip/zip.js');

const {
  __filter
} = require('../$filter/filter.js');

const {
  __map
} = require('../$map/map.js');

function __compress(source, included) {
  return __map(__filter(__zip([source, included]), ([, isIncluded]) => isIncluded), ([value]) => value);
}

exports.__compress = __compress;
const compress = /*#__PURE__*/curry(function $compress(source, included) {
  return __compress(ensureIterable(source), ensureIterable(included));
});
exports.compress = compress;