js的replace全部动态替换动态字符串

js动态替换重复的词语

  let title = ”随便写的“;
  let doubleTitle = title;
  arrPara[i] = arrPara[i].replace(new RegExp(doubleTitle,'gm'),title);//方法1
  arrPara[i] = arrPara[i].replace(doubleTitle,"");//方法2