How to print results of script in MongoDB?

We will use printjson() for this. Let us first create a collection with documents −

> dbprintResultScriptDemoinsertOne({"StudentName":"John","StudentAge":21}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cf22c02b64a577be5a2bc0b") } > dbprintResultScriptDemoinsertOne({"StudentName":"Carol","StudentAge":20}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cf22c09b64a577be5a2bc0c") } > dbprintResultScriptDemoinsertOne({"StudentName":"David","StudentAge":19}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cf22c11b64a577be5a2bc0d") }

Following is the query to display all documents from a collection with the help of find() method −

> dbprintResultScriptDemofind();

This will produce the following document −

{ "_id" : ObjectId("5cf22c02b64a577be5a2bc0b"), "StudentName" : "John", "StudentAge" : 21 } { "_id" : ObjectId("5cf22c09b64a577be5a2bc0c"), "StudentName" : "Carol", "StudentAge" : 20 } { "_id" : ObjectId("5cf22c11b64a577be5a2bc0d"), "StudentName" : "David", "StudentAge" : 19 }

Following is the query to print results of script −

> var document=dbprintResultScriptDemofind(); > while (documenthasNext()) {    printjson(documentnext()); }

This will produce the following document −

{    "_id" : ObjectId("5cf22c02b64a577be5a2bc0b"),    "StudentName" : "John",    "StudentAge" : 21 } {    "_id" : ObjectId("5cf22c09b64a577be5a2bc0c"),    "StudentName" : "Carol",    "StudentAge" : 20 } {    "_id" : ObjectId("5cf22c11b64a577be5a2bc0d"),    "StudentName" : "David",    "StudentAge" : 19 }