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Write Scripts and Function for the mongo Shell.. The Complete Mongo DB Developer Course 2023 [Videos].

You can write scripts for the mongo shell in JavaScript that manipulate data in MongoDB or perform administrative operation. This tutorial provides an introduction to writing JavaScript that uses the mongo shell to access MongoDB. Opening New Connections From the mongo shell or from a JavaScript file, you can instantiate database connections using the Mongo() constructor: new Mongo() new Mongo() new Mongo() Consider the following example that instantiates a new connection to the MongoDB instance running on localhost on the default port and sets the global db variable to myDatabase using the getDB() method:

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