Error when trying to search for words through queries

I'm trying to search for words through queries but it gives me this message:

The problem occurs when writing this code

const search = String(req.query.keyword)
  if (req.query.keyword) {
    req.query.keyword = req.query.keyword.split(""").join(" ");
    console.log(req.query.keyword)
    const query = {};
    query.$or = [
      {title: { $regex: search, $options : 'i' }},
      {description: { $regex: search, $options : 'i' }}
    ];
    mongooseQuery = mongooseQuery.find(query)
  }

CodePudding user response：

I checked the code again and the solution to the problem is to replace the if with this code

.find(req.query.keyword ? query : {}) 
    
const query = {};
query.$or = [
  { title: { $regex: req.query.keyword, $options: "i" } },
  { description: { $regex: req.query.keyword, $options: "i" } },
];