--- title: "Sumit Upadhyay (@sumitupadhyay) | Hashnode" description: "Software Developer. Read the latest articles by Sumit Upadhyay on Hashnode." url: "https://hashnode.com/@sumitupadhyay" --- @sumitupadhyay # Sumit Upadhyay @sumitupadhyay · India 🇮🇳 · Joined June 2022 Software Developer ### [Front-end Performance guide for Senior Developers](https://sumitmupadhyay.hashnode.dev/front-end-performance-guide-for-senior-developers?utm_source=hashnode&utm_medium=feed) You’ve probably heard the phrase “You can only fix what you can measure.” That’s true but as a senior developer, you also know that many performance issues can be prevented long before you run Lighthouse, WebPageTest, or any profiler. Good engineerin... 9 min read · [sumitmupadhyay.hashnode.dev](https://sumitmupadhyay.hashnode.dev/front-end-performance-guide-for-senior-developers?utm_source=hashnode&utm_medium=feed) [Dec 16, 2025](https://hashnode.com/posts/front-end-performance-guide-for-senior-developers/69418bcc314fd8c0baa64934) ### [The Difference Between and in HTML – Explained with Examples](https://sumitmupadhyay.hashnode.dev/the-difference-between-b-and-strong-in-html-explained-with-examples-1?utm_source=hashnode&utm_medium=feed) Bold text is a common formatting technique used to grab attention and highlight important information on webpages. In HTML, we have two seemingly interchangeable tags for bold formatting: and . While they may achieve a similar visual outc... 9 min read · [sumitmupadhyay.hashnode.dev](https://sumitmupadhyay.hashnode.dev/the-difference-between-b-and-strong-in-html-explained-with-examples-1?utm_source=hashnode&utm_medium=feed) [Nov 30, 2024](https://hashnode.com/posts/the-difference-between-b-and-strong-in-html-explained-with-examples-1/674ab3faca231a5be871e8cb) ### [How to Build a GitHub Template Repository for Scaffolding with React, Vite, and TailwindCSS](https://sumitmupadhyay.hashnode.dev/how-to-build-a-github-template-repository-for-scaffolding-with-react-vite-and-tailwindcss?utm_source=hashnode&utm_medium=feed) Developers love productivity. When it comes to coding, we want to do things fast and we look out for opportunities to re-use things as much as possible. Say, you are getting started with a ReactJS project and want to use TailwindCSS for the same. The... 7 min read · [sumitmupadhyay.hashnode.dev](https://sumitmupadhyay.hashnode.dev/how-to-build-a-github-template-repository-for-scaffolding-with-react-vite-and-tailwindcss?utm_source=hashnode&utm_medium=feed) [Nov 1, 2024](https://hashnode.com/posts/how-to-build-a-github-template-repository-for-scaffolding-with-react-vite-and-tailwindcss/67244412a9eaaf016673e5dd) ### [Should masonry be part of CSS grid?](https://sumitmupadhyay.hashnode.dev/should-masonry-be-part-of-css-grid?utm_source=hashnode&utm_medium=feed) Currently, the CSS Working Group (CSSWG) is discussing whether to include masonry as part of CSS grid, or as a new layout module? In this article, I will share my thoughts and examples about whether it should be part of the CSS grid or not. What is m... 7 min read · [sumitmupadhyay.hashnode.dev](https://sumitmupadhyay.hashnode.dev/should-masonry-be-part-of-css-grid?utm_source=hashnode&utm_medium=feed) [Nov 1, 2024](https://hashnode.com/posts/should-masonry-be-part-of-css-grid/67243ec71825c53f3f39420c) ### [✨🗳️ 17 JavaScript Variables Interview Questions](https://sumitmupadhyay.hashnode.dev/17-javascript-variables-interview-questions?utm_source=hashnode&utm_medium=feed) 1\. What is a variable in JavaScript? A variable is a container that holds data. You can think of it as a label for a specific spot in memory where information is stored. Variables are essential because they allow you to store, retrieve, and manipulat... 9 min read · [sumitmupadhyay.hashnode.dev](https://sumitmupadhyay.hashnode.dev/17-javascript-variables-interview-questions?utm_source=hashnode&utm_medium=feed) [Oct 13, 2024](https://hashnode.com/posts/17-javascript-variables-interview-questions/670b4f4e429614e94cca4a7d)