test> db.test.insertOne({})
{
  acknowledged: true,
  insertedId: ObjectId('6548dd7f12760d8147f865b0')
}
test> for (let i=0; i<10; i++) {db.test.find();}
[ { _id: ObjectId('6548dd7f12760d8147f865b0') } ]

const { MongoClient } = require('mongodb');
// or as an es module:
// import { MongoClient } from 'mongodb'

// Connection URL
const url = 'mongodb://localhost:27017';
const client = new MongoClient(url);

// Database Name
const dbName = 'myProject';

async function main() {
  // Use connect method to connect to the server
  await client.connect();
  console.log('Connected successfully to server');
  const db = client.db(dbName);
  const collection = db.collection('documents');

  // the following code examples can be pasted here...
  while (true) {
    collection.find({}); // note: not doing anything with the cursor
  }

  return 'done.';
}

main()
  .then(console.log)
  .catch(console.error)
  .finally(() => client.close());

NODE_OPTIONS=--max-old-space-size=64 node index.js
Connected successfully to server

<--- Last few GCs --->
ca[32214:0x7fd638008000]      516 ms: Mark-sweep (reduce) 63.3 (65.7) -> 62.8 (66.2) MB, 14.8 / 0.0 ms  (+ 8.6 ms in 15 steps since start of marking, biggest step 2.5 ms, walltime since start of marking 26 ms) (average mu = 0.386, current mu = 0.223) alloca[32214:0x7fd638008000]      545 ms: Mark-sweep (reduce) 63.1 (66.2) -> 62.9 (66.5) MB, 21.8 / 0.0 ms  (+ 2.6 ms in 3 steps since start of marking, biggest step 1.6 ms, walltime since start of marking 25 ms) (average mu = 0.294, current mu = 0.179) allocat

<--- JS stacktrace --->

FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory
 1: 0x107560e05 node::Abort() [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 2: 0x107560ff5 node::OOMErrorHandler(char const*, bool) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 3: 0x1076cc790 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 4: 0x1076cc753 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 5: 0x10786b125 v8::internal::Heap::FatalProcessOutOfMemory(char const*) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 6: 0x10786998c v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 7: 0x107876300 v8::internal::Heap::AllocateRawWithLightRetrySlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 8: 0x107876381 v8::internal::Heap::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
 9: 0x1078431f7 v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationType, v8::internal::AllocationOrigin) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
10: 0x107bf14df v8::internal::Runtime_AllocateInOldGeneration(int, unsigned long*, v8::internal::Isolate*) [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
11: 0x107f92819 Builtins_CEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
12: 0x10ca86e62
13: 0x107f22905 construct_stub_create_deopt_addr [/Users/leroux.bodenstein/.nvm/versions/node/v16.20.2/bin/node]
14: 0x10caa0d14
zsh: abort      NODE_OPTIONS=--max-old-space-size=64 node index.js