git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/vim-mode/node_modules/grim/node_modules/emissary/node_modules/es6-weak-map/node_modules/es5-ext/array/#/intersection.js

   1 'use strict';
   2
   3 var value    = require('../../object/valid-value')
   4   , contains = require('./contains')
   5   , byLength = require('./_compare-by-length')
   6
   7   , filter = Array.prototype.filter, push = Array.prototype.push
   8   , slice = Array.prototype.slice;
   9
  10 module.exports = function (/*…list*/) {
  11         var lists;
  12         if (!arguments.length) slice.call(this);
  13         push.apply(lists = [this], arguments);
  14         lists.forEach(value);
  15         lists.sort(byLength);
  16         return lists.reduce(function (a, b) {
  17                 return filter.call(a, function (x) { return contains.call(b, x); });
  18         });
  19 };