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OpenAI engineers used large-scale core dump analysis to debug rare infrastructure crashes, uncovering both a hardware fault and a long-standing software bug.
Part 7 of a beginner-friendly series on learning Python from scratch. In Part 6, we learned to write reusable functions. Now it's time to make those functions work in the real world: reading data from files, handling things when they go wrong, and using code other people have written. This is where
In the assignment, the function used to test the implemented backward_propagation function in Exercise 6 is backward_propagation_test in the public_tests.py file. I encountered the error AssertionError: Wrong values for dW1, even after several correct indications like my implemented code matching th
Introduction Single-step breakpoints are fundamental debugging mechanism that allows execution to pause after every single instruction. Unlike hardware breakpoints which trigger at a specific address, single-step mode traces every instruction sequentially. In this post, we will see these breakpoints
Debugging JavaScript: The Guide I Wish I Had Earlier (2026) Debugging is a skill. A learnable skill. Here's how to find and fix bugs faster. Before touching any tool: 1. Reproduce the bug consistently → Can you make it happen every time? → What are the EXACT steps? → What's different when it works v
Testing JavaScript: A Practical Guide to TDD with Jest (2026) Testing isn't optional anymore. Here's how to actually do it — with real examples you can copy. Without tests: → You're scared to refactor (what if I break something?) → Bugs get reintroduced ("regressions") → Code reviews take forever (r
Stop Pasting Your Code Into ChatGPT For Debugging—Run LLMs Locally Instead Here's the scenario: You've got a nasty bug, and your first instinct is to copy the suspicious function into ChatGPT. Works great. Except now you've just sent your company's code, your API keys (if you weren't careful), and p
