<![CDATA[Stories by CodeByUmar on Medium]]> https://medium.com/@codebyumar?source=rss-11e248f1d5e7------2 https://cdn-images-1.medium.com/fit/c/150/150/1*DTs7vHGOZSPrsRZ65dDIvg.jpeg Stories by CodeByUmar on Medium https://medium.com/@codebyumar?source=rss-11e248f1d5e7------2 Medium Wed, 30 Sep 2026 04:12:11 GMT <![CDATA[How Senior Engineers Know When an Abstraction Is Too Early]]>

Experienced engineers do not avoid abstraction. They wait until the code has revealed what is truly shared and what only looks similar for…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/how-senior-engineers-know-when-an-abstraction-is-too-early-14fb52954419?source=rss-11e248f1d5e7------2 https://medium.com/p/14fb52954419 Tue, 29 Sep 2026 18:35:43 GMT 2026-09-29T18:35:43.096Z <![CDATA[If You Trust Frontend Validation, Your Application Is Already Vulnerable]]>

Frontend validation can guide honest users, but it cannot stop anyone who chooses to bypass the interface and speak to your API directly.

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/if-you-trust-frontend-validation-your-application-is-already-vulnerable-911169065740?source=rss-11e248f1d5e7------2 https://medium.com/p/911169065740 Tue, 29 Sep 2026 13:12:51 GMT 2026-09-29T13:12:51.645Z <![CDATA[Why Tiny React Components Can Still Create a Terrible Architecture]]>

Breaking a large component into smaller files can improve readability while leaving the underlying state ownership, coupling, and change…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/why-tiny-react-components-can-still-create-a-terrible-architecture-d37b20438417?source=rss-11e248f1d5e7------2 https://medium.com/p/d37b20438417 Mon, 28 Sep 2026 16:26:52 GMT 2026-09-28T16:26:52.577Z <![CDATA[10 Things Your Browser Does Before React Renders Anything]]>

React may control the component tree, but the browser has already completed a surprising amount of networking, parsing, scheduling, and…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/10-things-your-browser-does-before-react-renders-anything-e3d620064f54?source=rss-11e248f1d5e7------2 https://medium.com/p/e3d620064f54 Mon, 28 Sep 2026 16:25:13 GMT 2026-09-28T16:25:13.192Z <![CDATA[Most React Performance Problems Start With One Wrong Assumption]]>

React performance becomes much easier to reason about once you stop assuming that only the component whose visible output changed will…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/most-react-performance-problems-start-with-one-wrong-assumption-2b1d68fc69d6?source=rss-11e248f1d5e7------2 https://medium.com/p/2b1d68fc69d6 Mon, 28 Sep 2026 10:26:38 GMT 2026-09-28T10:26:38.264Z <![CDATA[The Component Abstraction That Made Our React App Harder to Change]]>

We built one reusable component to eliminate duplication; then, for every new feature, we spent time teaching that component how to behave…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/the-component-abstraction-that-made-our-react-app-harder-to-change-26976c02175a?source=rss-11e248f1d5e7------2 https://medium.com/p/26976c02175a Mon, 28 Sep 2026 10:25:13 GMT 2026-09-28T10:25:13.196Z <![CDATA[7 Signs Your React Component Owns Too Much State]]>

The clearest warning is not the number of useState calls. It is how many unrelated parts of the interface must negotiate with the same…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/7-signs-your-react-component-owns-too-much-state-78934f574318?source=rss-11e248f1d5e7------2 https://medium.com/p/78934f574318 Mon, 28 Sep 2026 07:03:26 GMT 2026-09-28T07:03:26.347Z <![CDATA[What Senior Engineers Notice About “Simple” Features Before Writing Any Code]]>

The request may need only one button or endpoint, but the real feature often changes state, authority, data contracts, failure behavior…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/what-senior-engineers-notice-about-simple-features-before-writing-any-code-cb8345144ba5?source=rss-11e248f1d5e7------2 https://medium.com/p/cb8345144ba5 Sun, 27 Sep 2026 10:53:51 GMT 2026-09-27T10:53:51.721Z <![CDATA[The Debugging Habit I Stole From the Best Engineer on My Team]]>

He did not begin by changing suspicious code. He began by writing down one thing the system should prove next.

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/the-debugging-habit-i-stole-from-the-best-engineer-on-my-team-67fd43dc6fb5?source=rss-11e248f1d5e7------2 https://medium.com/p/67fd43dc6fb5 Sun, 27 Sep 2026 06:21:11 GMT 2026-09-27T06:21:11.722Z <![CDATA[9 Things Senior Engineers Notice During Code Reviews]]>

Experienced reviewers are not only checking whether the code works. They are looking for the hidden decisions that will determine how…

Continue reading on Skill Stuff »

]]> https://medium.com/skillstuff/9-things-senior-engineers-notice-during-code-reviews-56166a18f49e?source=rss-11e248f1d5e7------2 https://medium.com/p/56166a18f49e Sat, 26 Sep 2026 08:24:02 GMT 2026-09-26T08:24:02.767Z