mongodb

Mongodb – I got following error while developing in MEAN stack : Cannot find module 'mongojs'

I ran command: node server in bash on Ubuntu and below is the error I got: node:internal/modules/cjs/loader:936 throw err; ^ Error: Cannot find module 'mongojs' Require stack: - /home/nishil/Documents/contactListApp/server.js at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15) at Function.Module._load (node:internal/modules/cjs/loader:778:27) at Module.require (node:internal/modules/cjs/loader:1005:19) at require…

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MongoDB – Filter array with array

I have one data example like this one in MongoDB. { id: 628a8683fc489c315b330ade, examName : 'Final Exam', schedule: { scheduleDate : '2021-10-18T17:00:00.000+00:00' scheduleName : 'Package Test' package:[ { exclude_question:[1,2], namePackage:testing packageId:628a89c2fc489c315b330b01 } ] }, question:[ { id:1, question:'hello can u…

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Mongodb – Nodejs localField $lookup as Array of _ids

i need to join two documents where in the first there a property as array of _ids and in the second documents to join db={ "tipo_pratica": [ { "_id": "618981a4c1b8b3bc67ff80b6", "descrizione": "anticipata", "modulo": [ "628015cd2fd9dfee86ac6820", "62801a4c2fd9dfee86ac6821", "6278f8d9d4aa4f4cef1a8266" ]}, { "_id":…

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