This repository contains optimized solutions for HackerRank SQL challenges, covering Basic to Advanced SQL concepts. Each solution includes the problem statement, query, and explanation. 📌 Topics: SELECT, Joins, Aggregations, Subqueries, Window Functions & more. 🚀 Perfect for SQL learners & Data Analysts! Star ⭐ the repo if you find it helpful!

Topics (Tutorials) from HackerRank

This repository contains Leetcode DSA and HackerRank DSA Solution using Javascript and Code snippet of Important Topics in Javascript. It is meant to help beginners to learn and practice JavaScript concepts and features in a hands-on way.

If You know the implementation of any DSA related topic/problem or HackerRank, HackerEarth, LeetCode problems then you can contribute it in this repo. Raise Genuine PRs only. Your PRs will be accepted, keep patience. Star this Repo. You aren't allowed to Update README.md. Create PR and win Swags in hacktoberfest 2022

What is JavaScript and what does it do? Before you start learning something new, it’s important to understand exactly what it is and what it does. This is especially useful when it comes to mastering a new programming language. In simple terms, JavaScript is a programming language used to make websites interactive. If you think about the basic makeup of a website, you have HTML, which describes and defines the basic content and structure of the website, then you have CSS, which tells the browser how this HTML content should be displayed—determining things like color and font. With just HTML and CSS, you have a website that looks good but doesn’t actually do much. JavaScript brings the website to life by adding functionality. JavaScript is responsible for elements that the user can interact with, such as drop-down menus, modal windows, and contact forms. It is also used to create things like animations, video players, and interactive maps. Nowadays, JavaScript is an all-purpose programming language—meaning it runs across the entire software stack. The most popular application of JavaScript is on the client side (aka frontend), but since Node.js came on the scene, many people run JavaScript on the server side (aka backend) as well. When used on the client side, JavaScript code is read, interpreted, and executed in the user’s web browser. When used on the server side, it is run on a remote computer. You can learn more about the difference between frontend and backend programming here. JavaScript isn’t only used to create websites. It can also be used to build browser-based games and, with the help of certain frameworks, mobile apps for different operating systems. The creation of new libraries and frameworks is also making it possible to build backend programs with JavaScript, such as web apps and server apps. Is it still worth learning JavaScript in 2021? The world of web development is constantly moving. With so many new tools popping up all the time, it can be extremely difficult to know where you should focus your efforts. As an aspiring developer, you’ll want to make sure that what you’re learning is still relevant in today’s industry. If you’re having doubts about JavaScript, it’s important to know that, since its creation in 1995, JavaScript is pretty much everywhere on the web—and that’s not likely to change any time soon. According to the 2020 StackOverflow developer survey, JavaScript is the most commonly used programming language for the eighth year in a row. It is currently used by 94.5% of all websites and, despite originally being designed as a client-side language, JavaScript has now made its way to the server-side of websites (thanks to Node.js), mobile devices (thanks to React Native and Ionic) and desktop (courtesy of Electron). As long as people are interacting with the web, you can assume that JavaScript is highly relevant—there’s no doubt that this is a language worth knowing! With that in mind, let’s look at some of the key benefits of becoming a JavaScript expert. Why learn JavaScript? The most obvious reason for learning JavaScript is if you have hopes of becoming a web developer. Even if you haven’t got your heart set on a tech career, being proficient in JavaScript will enable you to build websites from scratch—a pretty useful skill to have in today’s job market! If you do want to become a web developer, here are some of the main reasons why you should learn JavaScript: JavaScript experts are versatile JavaScript is an extremely versatile language. Once you’ve mastered it, the possibilities are endless: you can code on the client-side (frontend) using Angular and on the server-side (backend) using Node.js. You can also develop web, mobile, and desktop apps using React, React Native, and Electron, and you can even get involved in machine learning. If you want to become a frontend developer, JavaScript is a prerequisite. However, that’s not the only career path open to you as a JavaScript expert. Mastering this key programming language could see you go on to work in full-stack development, games development, information security software engineering, machine learning, and artificial intelligence—to name just a few! Ultimately, if you want any kind of development or engineering career, proficiency in JavaScript is a must. JavaScript experts are in-demand (and well-paid) JavaScript is the most popular programming language in the world, so it’s no wonder that JavaScript is one of the most sought-after skills in the web development industry today. According to the Devskiller IT Skills and Hiring Report 2020, 72% of companies are looking to hire JavaScript experts. Enter the search term “JavaScript” on job site Indeed and you’ll find over 40,000 jobs requiring this skill (in the US). Run the same search on LinkedIn and the results are in excess of 125,000. At the same time, the global demand for JavaScript seems to outweigh the expertise available on the market. According to this 2018 HackerRank report, 48% of employers worldwide need developers with JavaScript skills, while only 42% of student developers claim to be proficient in JavaScript. And, in their most recent report for 2020, HackerRank once again reports that JavaScript is the most popular language that hiring mangers look for in a web developer candidate. Not only are JavaScript experts in demand—they are also well-paid. In the United States, JavaScript developers earn an average yearly salary of $111,953 per year. We’ve covered this topic in more detail in our JavaScript salary guide, but as you can see, learning JavaScript can really boost your earning potential as a developer. JavaScript is beginner-friendly Compared to many other programming languages, JavaScript offers one of the more beginner-friendly entry points into the world of coding. The great thing about JavaScript is that it comes installed on every modern web browser—there’s no need to set up any kind of development environment, which means you can start coding with JavaScript right away! Another advantage of learning JavaScript as your first programming language is that you get instant feedback; with a minimal amount of JavaScript code, you’ll immediately see visible results. There’s also a huge JavaScript community on sites like Stack Overflow, so you’ll find plenty of support as you learn. Not only is JavaScript beginner-friendly; it will also set you up with some extremely valuable transferable skills. JavaScript supports object-oriented, functional, and imperative styles of programming—skills which can be transferred to any new language you might learn later on, such as Python, Java, or C++. JavaScript provides a crucial introduction to key principles and practices that you’ll take with you throughout your career as a developer. Should you learn plain JavaScript first or can you skip to frameworks and libraries? When deciding whether or not to learn JavaScript, what you’re really asking is whether or not you should learn “vanilla” JavaScript. Vanilla JavaScript just means plain JavaScript without any libraries or frameworks. Let’s explore what this means in more detail now. What is meant by vanilla JavaScript, libraries, and frameworks? If you research the term “vanilla JavaScript”, you might run into some confusion; however, all you need to know is that vanilla JavaScript is used to refer to native, standards-based, non-extended JavaScript. There is no difference between vanilla JavaScript and JavaScript—it’s just there to emphasize the usage of plain JavaScript without the use of libraries and frameworks. So what are libraries and frameworks? JavaScript libraries and frameworks both contain sets of prewritten, ready-to-use JavaScript code—but they’re not the same thing. You can think of a framework as your blueprint for building a website: it gives you a structure to work from, and contains ready-made components and tools that help you to build certain elements much quicker than if you were to code them from scratch. Some popular JavaScript frameworks include Angular, React, Vue, and Node.js. Frameworks also contain libraries. Libraries are smaller than frameworks, and tend to be used for more specific cases. A JavaScript library contains sets of JavaScript code which can be called upon to implement certain functions and features. Let’s imagine you want to code a particular element into your website. You could write, say, ten lines of JavaScript from scratch—or you could take the condensed, ready-made version from your chosen JavaScript library. Some examples of JavaScript libraries include jQuery, Lodash, and Underscore. The easiest way to understand how frameworks and libraries work together is to imagine you are building a house. The framework provides the foundation and the structure, while the library enables you to add in ready-made components (like furniture) rather than building your own from scratch. You can learn more about the relationship between languages and libraries in this post explaining the main differences between JavaScript and jQuery. For now, let’s go back to our original question: How important is it to learn vanilla JavaScript? Should you learn vanilla JavaScript first? When it comes to learning JavaScript, it can be tempting to skip ahead to those time-saving frameworks and libraries we just talked about—and many developers do. However, there are many compelling arguments for learning plain JavaScript first. While JavaScript frameworks may help you get the job done quicker, there’s only so far you can go if you don’t understand the core concepts behind these frameworks. Frontend developer Abhishek Nagekar describes how not learning vanilla JavaScript came back to bite him when he started learning the JavaScript frameworks Node and Express: “As I went to write more and more code in Node and Express, I began to get stuck at even the tiniest problems. Suddenly, I was surrounded with words like callbacks, closures, event loop and prototype. It felt like I got a reintroduction to JavaScript, but this time, it was not a toddler playing in its cradle, it was something of a mysterious monster, challenging me on every other step for not having taken it seriously.” The above Tweet references a long-running joke within the developer community, and although it dates way back to 2015, it’s still highly relevant today. If you want to become a developer who can innovate, not just execute, you need to understand the underlying principles of the web—not just the shortcuts. This means learning vanilla JavaScript before you move on to frameworks. In fact, understanding plain JavaScript will help you later on when it comes to deciding whether to use a framework for a certain project, and if so, which framework to use. Why Study JavaScript? JavaScript is one of the 3 languages all web developers must learn: 1. HTML to define the content of web pages 2. CSS to specify the layout of web pages 3. JavaScript to program the behavior of web pages Learning Speed In this tutorial, the learning speed is your choice. Everything is up to you. If you are struggling, take a break, or re-read the material. Always make sure you understand all the "Try-it-Yourself" examples. The only way to become a clever programmer is to: Practice. Practice. Practice. Code. Code. Code ! Commonly Asked Questions How do I get JavaScript? Where can I download JavaScript? Is JavaScript Free? You don't have to get or download JavaScript. JavaScript is already running in your browser on your computer, on your tablet, and on your smart-phone. JavaScript is free to use for everyone.

➗ Mathematics Master ✈ Math with Code 🚀 HackerRank Mathematics 🛩 challenges with clarity 🌶and efficiency Perfect 🛺 for brushing up 🐉 on math skills through code 🦋 Solved problems with clean 🐲optimized solutions Covers topics 🐊 like algebra number theory 🐳 probability, geometry, and statistics 💡

Make your first Pull Request on Hacktoberfest 2023. if you know the implementation of any DSA related topic/problem or hackerrank, leetcode, hackerearth problem then you can contribute it in this repo. Raise Genuine PRs only. Your PRs will be accepted, keep patience. Star this Repo ⭐️ Contribute and join us in celebrating Hacktoberfest! 🎉🎉

Here you will get All Solutions for Topics from HackerRank Platform

I've completed learning C and Cpp languages. After completing the languages I switched to Daily challenges on Hackerrank and thereby realized the importance of starting DSA in the first semester! So , right after completing C and Cpp languages I've switched to learning DS and the journey is superb so far! Here I'm sharing all the notes I made while learning DSA . These notes are very topic specific and sticks to the codes required for title of the file! Very detailed with all the explanations I gave to myself while making the learning journey fun is here! Hope you find it Helpful :) Have a good day!

C Programming topic wise on Coding Platform HackerRank.

This repository contains my progress in learning and practicing data structures and algorithms. I will cover topics such as arrays, linked lists, stacks, queues, trees, graphs, sorting algorithms, and searching algorithms. I have solved various problems from online platforms such as LeetCode and HackerRank.

Shell Scritping and Automation Topic wise according to HackerRank

"Online Judge Solutions" is my collection of daily problem solutions from various online judges like Codeforces, LeetCode, and HackerRank. I share solutions for a range of topics, including data structures, algorithms and dynamic programming.

A repository to handle hackerRank/Leetcode most asked interview Questions categorized according to patterns & topics.

Data Structures and OOPS programming in C++ Language done Topic Wise according to HackerRank.

solved leetcode, hackerrank and other competitive competition questions in C++. In each folder there are question related to that topic. I have uploaded the solutions also. kindly ignore the .exe files.

this repository contains dsa topics , codeforces questions and various dsa concepts which are important for solving questions on leetcode, codeforces, hackerrank and various other platforms ...

This repository contains my solutions to various HackerRank challenges using Java. The challenges cover a wide range of topics, including data structures, algorithms, and problem-solving skills, aimed at improving proficiency in Java programming.

This is an overview/tutorial of important concepts in data structures and algorithms along with solutions to practice problems on Hackerrank surrounding these topics. C++ and Python

Notebooks with Frequently Asked DSA Problems sorted by Topic from Leetcode, Hackerrank, InterviewBit

Comprehensive C++ Learning Repo: Essential topics, evolving with weekly questions from LeetCode, HackerRank, etc. Sharpen skills, master C++, ace interviews. Contribute to build a thriving resource for learners worldwide.

Repository for Algorithms and Data structures. Solutions for various problems from multiple programming platform like LeetCode , HackerRank, SPOJ , Codeforces etc. It also contains problems from concurrency, system design topics

A simple challenge to myself to code daily & improve my problem solving skills with DSA. All the problems are solved in JAVA from basics to Advance topics from GFG, Leetcode, InterviewBit, HackerRank etc...

This repo hosts the solutions for a comprehensive workshop on mastering Python programming through HackerRank challenges. Whether you're a beginner looking to learn Python from scratch or an experienced programmer aiming to enhance your Python skills, this workshop provides a structured learning path that covers a wide range of topics.

🚀 Welcome to the Hackerrank Problem Solutions Repository! 📚✨ Unlock a treasure trove of well-commented code, meticulously organized by topic and difficulty. 🧠💻 Level up your algorithmic skills with best-practice implementations! 🌐🛠️ Dive into this developer's haven for a journey of learning and skill enhancement. Happy coding! 👩‍💻🔍

Repository which contains all the problems/questions that I have solved from various platforms like GeeksForGeeks , HackerRank , CodeChef etc in a topic-wise manner. The thought behind creating this repository was to have everything in one place in a systematic way (since there are so many resorces and its sometimes confusing) and hence helpful for beginners in probelm solving using DS and Algo.

solutions of popular quizzes from hackerrank.com and collection of code notes on popular topics

🚀 HackerRank SQL Solutions Welcome to the HackerRank SQL Solutions repository! This repository contains optimized SQL solutions for HackerRank SQL challenges, covering topics from basic queries to advanced SQL techniques. All solutions are solved and tested.

This project based on the "Java The Complete Reference, 8th Edition" and on the hackerrank.com exercise / topics.

"This repository contains my solutions for Python topics on HackerRank, aimed at practicing and improving my Python programming skills.