my .mongoshrc file

.mongoshrc.js

// default prompt
const short = false;

// shorthand for show collections and dbs
const sc = () => db.getCollectionNames();
const sd = () =>
  db
    .getMongo()
    .getDBs()
    .databases.map((db) => db.name);

// helper for feature compatibilty version
const fcv = () =>
  db.adminCommand({ getParameter: 1, featureCompatibilityVersion: 1 });

// mongosh prompt
prompt = () => {
  if (short) {
    // print("Recording mode enabled")
    return `${db.getName()}> `
  } 
  let returnString = "";
  const dbName = db.getName();
  const isEnterprise = db.serverBuildInfo().modules.includes("enterprise");
  const mongoURL = db.getMongo()._uri.includes("mongodb.net");
  const nonAtlasEnterprise = isEnterprise && !mongoURL;
  const usingAtlas = mongoURL && isEnterprise;
  const readPref = db.getMongo().getReadPrefMode();
  const isLocalHost = /localhost|127\.0\.0\.1/.test(db.getMongo()._uri);
  const currentUser = db.runCommand({ connectionStatus: 1 }).authInfo
    .authenticatedUsers[0]?.user;
  if (usingAtlas) {
    returnString += `Atlas || ${dbName} || ${currentUser} || ${readPref} || =>`;
  } else if (isLocalHost) {
    returnString += `${
      nonAtlasEnterprise ? "Enterprise || localhost" : "localhost"
    } || ${dbName} || ${readPref} || =>`;
  } else if (nonAtlasEnterprise) {
    returnString += `Enterprise || ${dbName} || ${currentUser} || ${readPref} || =>`;
  } else {
    returnString += `${dbName} || ${readPref} || =>`;
  }
  return returnString;
};