1. JavaScript JavaScript is the most used programming language in the world. Even famous social media platforms such as Facebook, Google, or YouTube, use JavaScript in their infrastructure. JavaScript is famous for its various frameworks, such as Node.js, and you get a language capable of server-side scripting too. Not only this, with the use of JavaScript, one can also build full-scale games in an external game engine or the browser using JavaScript. JavaScript is mainly used for Front-end and back-end web development, mobile apps and developing games 2. Python The ever-growing importance of data in business has resulted in a quick rise in popularity and demand for Python. Python is used in server-side development, web and mobile app development to building machine learning software, there's nothing Python can't do. Also, this programming language has a vast collection of libraries, tools, and frameworks that make it a must in the field of Data Science and Machine Learning. Al...