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1. Script can be used to remove duplica... Script can be used to remove duplicates from a collection and preserving the first or last entry or remove all.

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   const {MongoClient} = require('mongodb');

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   /**

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    * Connection URI. Update <username>, <password>, and <your-cluster-url> to reflect your cluster.

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    * See https://docs.mongodb.com/ecosystem/drivers/node/ for more details