TIL Weekly #2

#devjournal #todayilearned #learning

This Week: What I Learned, Read, and Did.

Learning/Researching

Go (Golang)
- Posted: Concurrency, Goroutines, and Channels in Go: A Study
- Currently learning about mutex and working on a post about them.

Reading

The Rules of Programming: How to Write Better Code
Several other Japanese books

Conclusion

I posted an article about Go goroutine, and I'm now studying mutex and writing a new article about them. Fully understanding the context package still feels a bit far off.

I also plan to tackle the pile of unread books I've accumulated. I've just started reading The Rules of Programming, so I don't have much of an impression yet.

Lastly, I cut down the number of podcast channels and Rss feeds I follow. Instead of those feeds and channels, I started a trial subscription with Audible. I hope this will reduce the constant urge to check for "new information" and help me focus on what's most important.

5 Playwright CLI Flags That Will Transform Your Testing Workflow

0:56 --last-failed: Zero in on just the tests that failed in your previous run
2:34 --only-changed: Test only the spec files you've modified in git
4:27 --repeat-each: Run tests multiple times to catch flaky behavior before it reaches production
5:15 --forbid-only: Prevent accidental test.only commits from breaking your CI pipeline
5:51 --ui --headed --workers 1: Debug visually with browser windows and sequential test execution

Learn how these powerful command-line options can save you time, strengthen your test suite, and streamline your Playwright testing experience. Click on any timestamp above to jump directly to that section in the tutorial!

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