How to define aliases in MongoDB Shell?

To define an alias in the MongoDB shell you can use the following syntax -

Object.defineProperty(this, 'yourFunctionName', { get: function() { yourStatement1, . . return N }, enumerable: true, configurable: true });

The following is the syntax for assignment using var -

var anyAliasName=yourFunctionName;

Let We implement the above syntax to define aliases in the MongoDB shell. Here, "displayMessageDemo" is our function -

> Object.defineProperty(this, 'displayMessageDemo', { ... get: function() { ... return "Hello MongoDB" ... }, ... enumerable: true, ... configurable: true ... });

Query to assign function to var in MongoDB shell -

> var myMessage = displayMessageDemo;

Let us display the value of the above alias -

> myMessage;

This will produce the following output -

Hello MongoDB

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