Suppose you got the job of managing all the schools in your city. You have created a collection of schools which contains all the school names, locations etc. Also, each school has its own MongoDB collection which includes course names, timings, fees etc. Now you need to populate each school’s data into your main school […]
Mongoose Populate: Replacing Paths with Documents in MongoDB Read More »
As a MERN fan, we all have a favourite database, MongoDB. While working with it we usually use the find() method to select or query multiple documents, on the other hand, we use findOne() to get one. We can also use this findOne() with an ID passed as a query to select that specific ID-contained
Mongoose findById() Function: Selecting MongoDB Document by ID Read More »
If you are encountering errors while using npm without sudo, it can be related to issues with permissions. This usually happens when npm tries to install packages or modify files in directories where the current user does not have sufficient permissions. Running npm commands with sudo increases privileges and enables npm to perform the desired
How to Fix NPM Throwing Error Without sudo: An Easy Guide Read More »
While building web applications that run in the browser, memory management is one of the important steps to consider. It often occurs when garbage collection fails. In this tutorial, we will learn about memory leaks in JavaScript, exploring the causes of them with the help of practical implementation and highlighting common mistakes to avoid. Introduction
Understanding Memory Leaks and Their Prevention in JavaScript Read More »
JavaScript is finally getting the array grouping method which means we don’t have to rely on lodash to be able to group our objects by some key. It’s already at stage 3 of the ECMAScript proposal process which means it’s going to land in Node.js and other browsers very soon. Although it is already in
Introducing Object.groupBy() and Map.groupBy() in JavaScript Read More »
If you have been coding in JavaScript for longer, you have already covered the methods dealing with numbers and strings, which are frequently used. There are other special methods in JavaScript that can turn out to be important while creating web pages. The alert(), prompt() and confirm() method displays multiple kinds of dialog boxes. In
JavaScript Popup Boxes: Alert(), Prompt(), & Confirm() Methods Read More »
When we work with Python, sometimes we need to use features from the computer’s operating system. The ‘os’ module in Python helps us do this. It lets us do things like find out the current directory, list files and folders, create or delete folders, and more. In this article, we’ll look at some useful ‘os’
15 Useful Methods from Python OS Module Read More »
We are all aware of the growing popularity of QR code generators. Did you know that you can create your own QR code generator? With Python, it is possible to perform this magic. In this article, we will teach you about the amazing qrcode module in Python and show you step-by-step how you can create
Creating QR Codes with Python Using the qrcode Library Read More »
Want to set an alarm reminder on your system while you work? Want to set an alarm if you take a nap in between? No worries, as we have Tkinter with us. Welcome to another page for creating Tkinter applications in Python, and in this tutorial we will learn how to create an alarm clock.
Creating an Alarm Clock with Tkinter: A Step-by-Step Guide Read More »
Want to calculate someone’s age in seconds without any mental pressure? Well, we have a solution for you – an age calculator. The age calculator can determine anyone’s age with just their birthday. To achieve this, we can seek help from our best friend for application making, Tkinter. Yes, in today’s article, we will see
Creating an Age Calculator in Python Using Tkinter Read More »