Using $regex mongodb query in node js not working
The $regex value needs to be either the string pattern to match or a regular expression object. When passing a string pattern, you don't include the / delimitters like you're doing in your node.js code.
So either of these would work in node.js:
var selector = {"displayName": {$regex: ".*abc.", $options:"i"}}OR
var selector = {"displayName": {$regex: /.*abc./, $options:"i"}}
could you please try this one, It works for me.
var getValue = "abc";db.users.findOne({ displayName: new RegExp(regexValue, "i") }, function(err, res) { if (err) { console.log(err); } else { console.log(res.length); }});
In mongodb consoletry this query
db.users.findOne({"displayName":{$regex: ".*abc", $options:"i"}})
and in nodejs var selector = users.find({ "displayName": {$regex: ".*abc", $options:"i"}})
here users = is a collection name