Function takeAsync

Returns an iterable with the first limit items of iterable.

function* naturalNumbers() {
  for(let i=0;; i++) {
    yield i;
  }
}
assert.deepEqual(
  toArray(Iterable.take(3, naturalNumbers())),
  [0, 1, 2]
);
assert.deepEqual(
  toArray(Iterable.take(2, ['a', 'b', 'c'])),
  ['a', 'b']
);
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