var MongoClient = require('mongodb').MongoClient; var url = "mongodb://localhost:27017/"; MongoClient.connect(url, function(err, db) { if (err) throw err; var dbo = db.db("mydb"); var myquery = { address: /^S/ }; var newvalues = {$set: {name: "Minnie"} }; dbo.collection("customers").updateMany(myquery, newvalues, function(err, res) { if (err) throw err; console.log(res.result.nModified + " document(s) updated"); db.close(); }); });