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:
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