caseinsencitve search in mongodb

https://stackoverflow.com/questions/7101703/how-do-i-make-case-insensitive-queries-on-mongodb/7101868

db.collection.find( {"name_lower":
    { $regex: new RegExp("^" + thename.toLowerCase(), "i") } }
);

db.collection.find( {"name_lower":
    { $regex: new RegExp("^" + thename.toLowerCase(), "i") } }
);