concat - nodef/extra-set GitHub Wiki

Append values from sets.

Alternatives: concat, concat$.

function concat(...xs)
// xs: sets

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

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

var z = new Set([40, 50]);
set.concat(x, y, z);
// → Set(6) { 1, 2, 3, 4, 40, 50 }

References

• Array.prototype.concat: MDN web docs
• Array.add: sugarjs