1. Document.querycommandindenter (scmdid) cannot detect the certainty of scmdid status in Safari of Apple phone

const toBold = () => {
    console.log("bold staus", document.queryCommandIndeterm("bold"));
    if (document.queryCommandIndeterm("bold")) {
      console.log("Bold cannot be determined");
    } else {
      if (document.queryCommandState("bold")) {
        console.log("Bold removal");
      } else {
        console.log("Bold add");
      }
    }
    document.execCommand("bold", false, null);
  };