使用 Express 和 ZCCADCDEDB567ABAE643E15DCF0974E503Z 查找具有“包含”条件的项目

Question

I want to search for items in my collection where the userName contains adm .

I expect to get 2 results, because I have 2 records in my database where the userNames are admin0 and admin2 , but it does not return anything.

I'm using this query:

Person
  .find({
    userName: { $in: 'adm'}
  })

What is the problem? How can I search and find persons where the userName contains adm ?

Answer 1

You have to use regular expression or $regex when finding the Persons.

Here is the snippet:

Person.find({username: {$regex: '(.*)adm(.*)'}})