(skip-while f it)
  f: a callable
  it: an iterable
  returns an iter
F

Skips leading items which match a predicate.

When this iterator is first advanced, it repeatedly calls (iter-next! it) until (f item) returns #f or #n. It then produces each remaining item from the base iterator.

(prn ..(skip-while even? '(4 6 7 8))) ; prints 7 8
←skip
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