Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
In Python, the == and is operators are used for comparison, but they serve different purposes. The == operator checks for equality of values, which means it evaluates whether the values of two objects are the same. On the other hand, the is operator checks for identity, meaning it determines whether two variables point to the same object in memory. Before discussing the differences between the == and is operators in Python, let’s first understand these operators in detail. What Is the 'is' Operator? The Python is operator tests whether two variables refer to the same object in memory. If ... Read More
The sscanf() Function The sscanf() function from the C library reads input from a string and stores the results in specified variables. Each argument must be a pointer to a variable that matches the specified type in the format string. Syntax sscanf(string, formatspecifier, &var1, &var2, ……..) Parameters The following are the parameters for the sscanf() function − The String refers to the character string to read from. The Format string refers to a character string containing the required formatting information. Var1, var2, etc., represent the individual input data items. For example, this code extracts two integers from the ... Read More
In C programming, a union is a memory location shared by multiple variables of different data types. While we can define multiple members in a union, only one member can hold a value at any given time. This makes unions an efficient way to use the same memory space for different purposes. Declaration of Union Variable A union is a user-defined datatype in the C programming language. This allows the storage of different types of variables in the same location. A union can have multiple members, and only a single member can hold a value at any given time. Declaring ... Read More
Permutations refer to arranging the members of a set into different sequences. if the set is already ordered, rearranging (reordering) its elements. If a set has n elements, the total number of permutations is n! (factorial of n) Some common approaches we can use to generate all permutations of a set in Python are as follows. Using a for loop Using itertools.permutations() function. ... Read More
Snapchat and TikTok are two of the most popular social media platforms among young audiences today. While both focus on sharing short, engaging visual content, they cater to different use cases and offer unique features. This article explores the key differences between Snapchat and TikTok to help you understand their functionalities and choose the right one for your needs. What is Snapchat? Snapchat is a multimedia messaging app designed for sharing ephemeral content. Users can send photos, videos, and text messages that disappear after being viewed. Known for its privacy-focused features, Snapchat also offers Stories, filters, and augmented reality (AR) ... Read More
In this article, we are going to learn how to iterate on list or collection of data dynamically. However, directly using a loop is not a valid syntax in JSX. It is crucial to understand how to use loops inside React JSX. By iterating on arrays or any collections of data, we can render the component dynamically. Prerequisites ReactJS JSX Approaches to Loop inside React JSX The map() function and other methods can be used to repeat elements in JSX when we need to iterate over a list ... Read More
What is Milliseconds? The Milliseconds is a smaller unit of time used for problems where precise time calculations are desired. We can easily convert seconds to milliseconds using Python. In this article, we will learn how to do so in Python. This is useful in many applications, such as video editing, data analysis, and real-time processing. Problem Description We are given time input in milliseconds and must convert it into seconds. In this problem, we are going to learn how we can convert milliseconds to seconds in Python. The formula for converting milliseconds to seconds: seconds = 1000 / milliseconds ... Read More
When you dive into the world of WordPress, you'll quickly encounter various terms and files essential for managing and optimizing your website. Among these, XML files play a crucial role, especially when it comes to data migration, backup, and SEO. But what exactly are WordPress XML files, and why should you care about them? Understanding XML Files XML, which stands for eXtensible Markup Language, is a versatile and self-descriptive language used to store and transport data. Unlike HTML, which focuses on displaying data, XML is all about carrying and structuring data in a way that's both human-readable and machine-readable. ... Read More
In this article, we’re going to discuss the differences between the npm and npx. The difference between npm and npx is that npm is a package manager for managing dependencies and npx is a tool that allows you to run Node.js packages directly without installing them. Both are related to node.js but they are used for different purposes. First, let’s understand what npm is. npm The npm stands for Node Package Manager. It is a default Javascript package manager for Node.js that allows developers to install, share and manage dependencies. NPM is installed when NodeJS is installed on system. ... Read More
In this article, we will cover why React 18's useEffect runs twice and how to handle this. If you recently switched your React application to version 18, you might have noticed that useEffect runs twice during component mounting. React 18 introduces a new development-only check called Strict Mode. This new check will automatically unmount and remount every component. Let's dive deeper into why this happens. Why useEffect runs twice? In React 18, when you are in development mode, your application runs in StrictMode by default. In StrictMode, React mounts, unmounts, and remounts components. It helps developers identify bugs and unexpected ... Read More