ยฉ 2026 Hashnode
If you work long enough in software development, you eventually realize something uncomfortable:most systems donโt fail because of bad code โ they fail because of rushed decisions. Modern development looks fast and exciting. New frameworks appear con...

Why do some bugs only appear after deployment, even when tests pass locally? Early in my backend work, I kept hearing discussions around stateful vs stateless. It felt academic at first, but once I started dealing with scaling issues, flaky tests, an...

์ ๊น! ์ํ์ ๋ํด ์์ง ์ ๋ชจ๋ฅธ๋ค๋ฉด [React] useState === ์ํ?๋ฅผ ๋จผ์ ์ฝ์ด๋ณด์ธ์! ์ปดํฌ๋ํธ๋ฅผ ์ํ ์ ์ฅ๊ณผ ๋น์ ์ฅ์ผ๋ก ๋ถ๋ฅํ๋ ๊ฒ์ ๋ํด ๋ค์ด๋ณด์ จ๋์? ์ํ๋ฅผ ์ ์ฅํ๋ค? ์ํ๋ฅผ ์ ์ฅํ์ง ์๋๋ค? ์ด๊ฒ์ด ๋ฌด์จ ์๋ฏธ์ด๋ฉฐ ์ด๋ป๊ฒ ๊ตฌ๋ถํ ์ ์์๊น์? ์ํ ์ ์ฅ ์ปดํฌ๋ํธ๋ ๊ฐ์ธ ๊ณต๊ฐ ๋ด์ ์ํ๋ฅผ ์ ์งํจ์ ์๋ฏธํฉ๋๋ค. ์ํ๋ ๋ฐ๋์ ์ปดํฌ๋ํธ์ ์๋ช ์ฃผ๊ธฐ ๋์ ์ ์ง๋ ํ์๋ ์์ง๋ง ์ต์ํ ํ๋ฐ์ฑ์ ์๋์ ์๋ฏธํฉ๋๋ค. ์ํ ๋น์ ์ฅ ์ปดํฌ๋...

Let's understand the difference by taking an example of RDS and S3 let's illustrate the difference between stateful and stateless applications by giving an examples of AWS cloud services (RDS & S3): Stateful Application ๐ฐ: Example: Relational Databa...
