Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{num:123,name:"good"},{num:12345,name:"hey"},{num:4523,name:"yo"},{num:777,name:"hihi"}]
Query
db.collection.find({$where:"/45/.test(this.num) && this.name==='yo'"})
Result