ordered-intersect v1.0.0

ordered-intersect

Calculate the intersection of two arrays. The arrays must be ordered, with no duplicates.

example

var intersect = require('ordered-intersect')
console.log(intersect.intersect([1,2,3,5,7], [2,3,7,9]))
=> [2,3,7]

api

in all the following functions, cmp is optional. like signature is the same as Array#sort(cmp). takes two arguments and returns -1, 0 or 1. 0 if equal, -1 if a < b, 1 if a > b.

intersect(a, b, cmp?)

return an array of all items in both a and c.

union(a, b, cmp?)

return an array of items that are in a or b, without duplicating items that are in both a and b.

difference (a, b, cmp?)

return items that are in a but not b. (does not include items that are in b but not a)

License

MIT