什么是intersect，Find the intersection of two arrays
var intersect = require('intersect'); var a = ['foo', 'bar', 'baz']; var b = ['nope', 'bar', 'baz']; console.log(intersect(a, b)); // => ['bar', 'baz']
With npm do
$ npm install intersect
With component do
$ component install juliangruber/intersect
Find the intersection of arrays
b. The individual arrays are expected to be sets, i.e. there’s no duplicate elements in them.
You can also pass an array of arrays as a single argument, to get the intersection of
This module contains an alternative intersection algorithm by @minuteman3, better suited for intersecting big arrays.
The implementations might compare like this, depending on your host environment:
Copyright © 2013 Julian Gruber <firstname.lastname@example.org>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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