Use printjson() to output Objects in MongoDB shell

If you want to output Objects in MongoDB shell, you can’t output with print(), so use printjson().

Below are sample execution results of Object with print() and printjson().

> var object = { a : 1 , b : 2 };

> print(object);
[object Object]

> printjson(object);
{ "a" : 1, "b" : 2 }

> printjson(1)
1
> printjson("a")
"a"

In most cases, it’s probably good to use printjson().

Reference Information

• node.js - Print object in mongo script - Stack Overflow

That’s all from the Gemba.