Converting character types using the MONGO shell

The MongoDB data types are as follows:

Type	corresponding numbers	Alias	Description
Double1	1	Double
String	2	String
Object	3	Object
Array	4	Array
Binary data	5	Bindata
Undefined	6	Undefined	Deprecated
ObjectId	7	ObjectId
Boolean	8	"BOOL"
Date	9	"Date"
Null	10	"NULL"
Regular Expression	11	"Regex"
Dbpointer	12	"Dbpointer"
Javascript	13	"JavaScript"
Symbol	14	"Symbol"
JavaScript (with scope)	15	"Javascriptwithscope"
32-bit integer	16	"Int"
Timestamp	17	"Timestamp"
64-bit integer	18	"Long"
Min Key	-1	"Minkey"
Max Key	127	"Maxkey"

JS Modify statement:

Db.getcollection (' Log_pages_day '). Find ({' UV ': {$type:} }). ForEach(function(x) {     =numberint (X.UV);    Db.log_pages_day.save (x);    

Converting character types using the MONGO shell