Answers for "Uncaught TypeError: Web3 is not a constructor"

xlsx.js:11743 Uncaught TypeError: jszip is not a constructor

cd node_modules && npm i jszip

Uncaught TypeError: Vue is not a constructor at

import Vue from 'vue'

TypeError: ObjectID is not a constructor

for "mongodb": "^4.1.0"
change 
const ObjectID = require('mongodb').ObjectID;
to 
const ObjectId = require('mongodb').ObjectId;