isIterator

Checks if value is an iterator (can iterate only once).

Alternatives: is, isList, isIterator.

iterable.isIterator(v);
// v: a value

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

iterable.isIterator([1, 2]);
// false

iterable.isIterator(new Set([1, 2]));
// false

iterable.isIterator([1, 2].values());
// true

references

• Symbol.iterator: MDN web docs