select several fields in mongodb code example
Example 1: mongodb match multiple fields
$match:
{
$and: [
{'ExtraFields.value': {$in: ["A52A2A"]}},
{'ExtraFields.fieldID': ObjectId("5535627631efa0843554b0ea")}
]
}
Example 2: mongodb find multiple fields
{ <field1>: <value>, <field2>: <value> ... }