How to Query MongoDB with “like”?

To query MongoDB with a “like” operator equivalent, we can use the $regex operator along with regular expressions. However, MongoDB offers several methods to query MongoDB with “like” are defined below:

Using $regex Expressions
Using the Regular Operator

Syntax:

db.collection.find({ "field": { $regex: /pattern/i } });

collection: The name of the MongoDB collection we want to query.
“field”: The field within the documents we want to query.
/pattern/: The regular expression pattern we want to match.
i: An optional flag that makes the pattern case-insensitive.

Let’s set up an Environment:

To understand How to query MongoDB with “like” we need a collection and some documents on which we will perform various operations and queries. Here we will consider a collection called users which contains information like name, email, username, bio, and city of the Employees in various documents.

> db.users.insertMany([
   {
     "name": "John Doe",
     "email": "john@example.com",
     "username": "johndoe",
     "bio": "Software Engineer with a passion for coding",
     "city": "New York"
     },
    {
    "name": "Alice Smith",
    "email": "alice@example.com",
    "username": "alicesmith",
    "bio": "Web Developer interested in UX design",
    "city": "San Francisco"
    },
    {
    "name": "francis",
    "email": "francis@example.com",
    "username": "francis",
    "bio": "data scientist",
    "city": "Madagascar"
    }
    ]);

Output:

user collections created