Function trigger

components/blog/StepCode.tsx:18–27

()

    const { current } = ref;

    const trigger = () => {
      const currentPre = current.querySelector('pre');

      if (!currentPre) return;

      const hasOverflow = currentPre.scrollHeight > currentPre.clientHeight;
      setIsOverflow(hasOverflow);

      if (callback) callback(hasOverflow);
    };

    if (current) {
      trigger();