wishthis/node_modules/es5-ext/array/#/intersection.js
2022-01-21 09:28:41 +01:00

19 lines
588 B
JavaScript

"use strict";
var value = require("../../object/valid-value")
, contains = require("./contains")
, byLength = require("./_compare-by-length")
, filter = Array.prototype.filter
, push = Array.prototype.push
, slice = Array.prototype.slice;
module.exports = function (/* …list*/) {
var lists;
if (!arguments.length) slice.call(this);
push.apply((lists = [this]), arguments);
lists.forEach(value);
lists.sort(byLength);
return lists.reduce(function (list1, list2) {
return filter.call(list1, function (item) { return contains.call(list2, item); });
});
};