is

Checks if value is set. 🏃 📼 📦 🌔 📒

set.is(v);
// v: value

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

set.is(new Set([1, 2]));
// true

set.is(new Set());
// true

set.is(1);
// false

References

• Array.isArray: MDN web docs
• Array.isArray: sugarjs