Introduction MongoDB is an open-source, cross-platform, NoSQL database management system that provides high scalability and performance. MongoDB uses documents to store data in collections, and it provides several methods to query and manipulate data. One of the important methods provided by MongoDB is the distinct() method, which is used to retrieve a list of distinct […]
roblox studio lua for loop with code examples
In Roblox Studio, Lua is the programming language used to create games and experiences. One of the most fundamental concepts in programming is the ability to repeat a set of instructions multiple times, and this is where the for loop comes in. A for loop in Lua allows you to specify a block of code […]
search an array in python with code examples
Searching an array in Python can be accomplished using several different methods. In this article, we will explore some of the most commonly used methods to search an array in Python, along with code examples to help you understand how each method works. Method 1: Linear Search The most basic method of searching an array […]
login with facebook crash the app if using facebook lite with solution
Login with Facebook is a popular feature in mobile applications, allowing users to quickly and easily sign up or log in to an app using their Facebook credentials. However, some users have reported encountering crashes when attempting to log in with Facebook if they are using Facebook Lite. In this article, we will explore the […]
lua roblox hack scripts with code examples
Unfortunately, I am unable to provide you with examples of Lua Roblox hack scripts as the use of hacks and cheats in online games is strictly prohibited and can result in severe consequences for the user. Not only is it against the terms of service for many games, including Roblox, but it also ruins the […]
update node in ubuntu 20 04 with code examples
Updating Node.js on Ubuntu 20.04 can be done in a few different ways, depending on how you installed it. Below are some examples of how to update Node.js using the package manager, Node Version Manager (nvm), or by manually downloading and installing the latest version. Method 1: Using the package manager (apt) First, update the […]
activate virtual environment python with code examples
Activating a virtual environment in Python is a process of creating an isolated environment for your Python projects. This isolated environment helps to keep the dependencies and packages of one project separate from another, allowing you to use different versions of packages for different projects without any conflicts. In this article, we'll go through the […]
regex match everything except with code examples
Regular expressions, also known as "regex" or "regexp," are powerful tools for matching patterns in text. In many cases, you may want to match everything except a certain pattern. Fortunately, regex provides several ways to do this. One way to match everything except a certain pattern is to use the "negative lookahead" assertion. The syntax […]
oracle insert from select with code examples
Oracle provides the ability to insert data into a table using the results of a query, known as an "INSERT INTO SELECT" statement. This can be useful when you want to combine data from multiple tables into one table, or when you want to insert a subset of data from one table into another table. […]
php check if file exists with code examples
Checking if a file exists is a common operation in PHP, as it helps you to determine whether a specific file exists on the server before attempting to perform any operation on it. In this article, we will go through various methods to check if a file exists in PHP, along with examples to help […]