mongose update function code example
Example 1: mongoose save or update
// This will create another document if it doesn't exist
findByIdAndUpdate(_id, { something: 'updated' }, { upsert: true });
Example 2: update query in mongoose
var conditions = { name: 'bourne' }
, update = { $inc: { visits: 1 }}
Model.update(conditions, update, { multi: true }).then(updatedRows=>{
}).catch(err=>{
console.log(err)
})