This content originally appeared on DEV Community and was authored by gunjangidwani
D๐ถ๐๐ฎ๐ฝ๐ฝ๐ฒ๐ฎ๐ฟ ๐ณ๐ผ๐ฟ ๐ฎ ๐บ๐ผ๐ป๐๐ต๐ ๐ฎ๐ป๐ฑ ๐ณ๐ถ๐
๐๐ฎ๐๐ฎ๐๐ฐ๐ฟ๐ถ๐ฝ๐ ๐ณ๐๐ป๐ฑ๐ฎ๐บ๐ฒ๐ป๐๐ฎ๐น๐๐ฅ
When i started the development journey, hoping from one video to another in order to get the job, I prepared 2-3 MERN/MEAN stack projects. I got the job and after that once again when I wanted to switch and prepare for high package job I got stuck in tutorial hell for months.
React tutorials, Next.js courses, TypeScript bootcamps - nothing clicked.
๐ง๐ต๐ฒ๐ป ๐ ๐ฟ๐ฒ๐ฎ๐น๐ถ๐๐ฒ๐ฑ ๐๐ต๐ฒ ๐ฝ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ: I was building a house without a foundation.
๐ฆ๐ผ ๐ ๐๐๐ผ๐ฝ๐ฝ๐ฒ๐ฑ ๐ฒ๐๐ฒ๐ฟ๐๐๐ต๐ถ๐ป๐ด. ๐ช๐ฒ๐ป๐ ๐ฏ๐ฎ๐ฐ๐ธ ๐๐ผ ๐๐ฎ๐ป๐ถ๐น๐น๐ฎ ๐๐ฎ๐๐ฎ๐ฆ๐ฐ๐ฟ๐ถ๐ฝ๐.
2 weeks of pure fundamentals.
The result?
I haven't touched a tutorial in 2 months.
Problems I used to Google for hours?
Solved in minutes.
๐๐ฒ๐ฟ๐ฒ'๐ ๐๐ต๐ฎ๐ ๐ ๐๐ถ๐๐ต ๐๐ผ๐บ๐ฒ๐ผ๐ป๐ฒ ๐๐ผ๐น๐ฑ ๐บ๐ฒ ๐ฒ๐ฎ๐ฟ๐น๐ถ๐ฒ๐ฟ:
- Stop chasing frameworks.
- Master the language first.
Most developers learn React before understanding JavaScript. It's like learning to drive before understanding how cars work.
๐ง๐ต๐ฒ ๐ณ ๐ณ๐๐ป๐ฑ๐ฎ๐บ๐ฒ๐ป๐๐ฎ๐น๐ ๐๐ต๐ฎ๐ ๐ฐ๐ต๐ฎ๐ป๐ด๐ฒ๐ฑ ๐ฒ๐๐ฒ๐ฟ๐๐๐ต๐ถ๐ป๐ด:
๐น Closures - Why your variables sometimes "disappear"
๐น Event Loop - Why your app freezes (and how to fix it)
๐น Prototypes - How JavaScript really works under the hood
๐น Hoisting - Why your code breaks in production but works locally
๐น Async/Await - Why your API calls fail silently
๐น Scope Chain - Why your functions can't find variables
๐น Reference vs Value - Why your state updates don't work
The uncomfortable truth:
๐ต๐ฌ% ๐ผ๐ณ ๐ฅ๐ฒ๐ฎ๐ฐ๐ ๐ฏ๐๐ด๐ ๐ฎ๐ฟ๐ฒ ๐๐ฎ๐๐ฎ๐ฆ๐ฐ๐ฟ๐ถ๐ฝ๐ ๐ฝ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ๐ ๐ถ๐ป ๐ฑ๐ถ๐๐ด๐๐ถ๐๐ฒ.
- That infinite re-render? JavaScript closure issue.
- That undefined error? JavaScript hoisting problem.
- That state not updating? JavaScript reference issue.
๐จ๐ป๐ฑ๐ฒ๐ฟ๐๐๐ฎ๐ป๐ฑ ๐๐ต๐ ๐ณ๐ฟ๐ฎ๐บ๐ฒ๐๐ผ๐ฟ๐ธ๐ ๐๐ผ๐ฟ๐ธ ๐๐ต๐ฒ ๐๐ฎ๐ ๐๐ต๐ฒ๐ ๐ฑ๐ผ
The biggest mistake I made:
I thought fundamentals were boring. They're not.
They're the difference between copying code and understanding code.
Bottom line: You can't build advanced React apps on shaky JavaScript foundations.
Fix the foundation first. Everything else becomes easier.
This content originally appeared on DEV Community and was authored by gunjangidwani
gunjangidwani | Sciencx (2025-08-26T17:21:11+00:00) Why Javascript fundamentals are stopping you!!!. Retrieved from https://www.scien.cx/2025/08/26/why-javascript-fundamentals-are-stopping-you/
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