Ronin1702

MongoDB Cheat Sheet

I made this cheat sheet with table of contents for easier navigation.

Table of Contents

1. Show All Databases
2. Show Current Database
3. Create Or Switch Database
4. Drop
5. Create Collection

Ronin1702

Heroku CLI Deployment:

MERN Stack Application with MongoDB Atlas

Steps

• Install the Heroku CLI and login.

• Create a new empty application on Heroku.

heroku create -a app_name

Ronin1702

RegEx Tutorial: Understanding URL Matching

What is regex?

A regex, which is short for regular expression, is a sequence of characters that defines a specific search pattern. When included in code or search algorithms, regular expressions can be used to find certain patterns of characters within a string, or to find and replace a character or sequence of characters within a string. They are also frequently used to validate input. Such as email addresses, URLs, usernames, etc.

• Purpose of the tutorial: This tutorial aims to dissect and explain the components of a specific regular expression (regex) used for URL matching.