mura

Data type	Description	Example
String	UTF-8 encoded text string	"Alice"
Integer	32-bit signed integer (int32)	25
Long	64-bit signed integer (int64) for large values	NumberLong(9999999999)
Double	64-bit IEEE 754 floating-point number	19.99
Decimal128	128-bit high-precision decimal	NumberDecimal("99.99")
Boolean	Logical true / false value	true
ObjectId	12-byte unique identifier, auto-generated for _id fields	ObjectId('69d2bdb643fd93140a3e2a90')
Date	Date and time stored as milliseconds since Unix epoch	new Date("2024-01-01")
Array	Ordered list of values of any type	["js", "db"]
Object	Embedded (nested) document	{ "city": "Kyiv" }
Null	Represents the absence of a value	null
Binary	Raw binary data (files, hashes)	BinData(0, "base64==")
Regex	Regular expression stored as a native BSON type	/^abc/i
Timestamp	Internal MongoDB type used for replication (not for storing dates)	Timestamp(1, 1)
MinKey / MaxKey	Special values that compare lower / higher than any other BSON value	used in indexes
Symbol	Deprecated string-like type – not recommended for use	Symbol("name")
JavaScript	Stores a JavaScript function or code snippet directly in a document. Historically used with $where queries – largely deprecated in modern MongoDB due to security concerns	{ "$code": "function() { return this.age > 18; }" }