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intersection
Subhajit Sahu edited this page May 19, 2020
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26 revisions
Gives values present in both iterables. 🏃 📼 📦 🌔 📒
iterable.intersection(x, y, [fc], [fm]);
// x: an iterable
// y: another iterable
// fc: compare function (a, b)
// fm: map function (v, i, x)
⏱️ Compare function => O(n²).
const iterable = require('extra-iterable');
var x = [1, 2, 3, 4];
var y = [2, 3, 5];
[...iterable.intersection(x, y)];
// [ 2, 3 ]
var y = [-2, -3, -5];
[...iterable.intersection(x, y, (a, b) => Math.abs(a) - Math.abs(b))];
// [ 2, 3 ]
[...iterable.intersection(x, y, null, v => Math.abs(v))];
// [ 2, 3 ]