from - nodef/extra-set GitHub Wiki

Convert an iterable to set.

Alternatives: from, from$.

function from(x, fm)
// x:  an iterable
// fm: map function (v, i, x)

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

var vs = [1, 2, 3, 4];
set.from(vs);
// → Set(4) { 1, 2, 3, 4 }

set.from(vs, v => v % 2);
// → Set(2) { 1, 0 }

References

• Array.prototype.from: MDN web docs