intersection$

Obtain values present in both sets.

Alternatives: intersection, intersection$.
Similar: union, intersection, difference, symmetricDifference, isDisjoint.

function intersection$(x, y)
// x: a set (updated)
// y: another set

const set = require('extra-set');

var x = new Set([1, 2, 3, 4]);
var y = new Set([2, 3, 5]);
set.intersection$(x, y);
// → Set(2) { 2, 3 }

x;
// → Set(2) { 2, 3 }

References

• Data.Set.intersection: Haskell
• Set.intersection: Python
• _.intersection: lodash
• _.intersectionBy: lodash
• _.intersectionWith: lodash
• Array.intersect: sugarjs