# every method

bool every (bool f(E element))

Checks whether every element of this iterable satisfies `test`.

Checks every element in iteration order, and returns `false` if any of them make `test` return `false`, otherwise returns `true`.

## Implementation

    bool every(bool f(E element)) {
      for (E element in this) {
        if (!f(element)) return false;
      }
      return true;
    }