Update Document - $push
Function Build
Build $push with the Push function from the update package.
go
// bson.D{bson.E{Key:"$push", Value:bson.D{bson.E{Key:"tags", Value:"mongodb"}}}}
result := update.Push("tags", "mongodb")Method Build (Builder)
Build $push with the Push method from update.NewBuilder().
go
// bson.D{bson.E{Key:"$push", Value:bson.D{bson.E{Key:"tags", Value:"mongodb"}}}}
result := update.NewBuilder().
Push("tags", "mongodb").
Build()