[{"_id":{"$oid":"613ed8098709b6402ab91ddd"},"employeeid":1187,"name":"John Steight","salary":75000},{"_id":{"$oid":"613ed8788709b6402ab91dde"},"employeeid":2455,"name":"Syed","salary":90000},{"_id":{"$oid":"613ed8c78709b6402ab91ddf"},"employeeid":24113,"name":"Wright John","salary":65000}]

db.collection.find({name:{"$regex":"John"}})