Gives values of set not present in others. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

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

This is part of package extra-set.

set.difference(x, y);
// x: a set
// y: another set

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

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

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

References

• Data.List.\: Haskell
• Data.Set.difference: Haskell
• Set.difference: Python
• _.difference: lodash
• _.differenceBy: lodash
• _.differenceWith: lodash
• Array.remove: sugarjs