Debug [work] Online

If a bug appeared recently, use git bisect to perform a binary search through commit history. Git will check out an old commit, you test for the bug, mark it good or bad, and Git narrows down to the exact commit that introduced the problem.

Patience is equally vital. Some "Heisenbugs"—bugs that seem to disappear or change behavior when you try to study them—can take days or even weeks to solve. The best developers view these not as frustrations, but as puzzles that offer a deeper understanding of how their systems truly function. If a bug appeared recently, use git bisect

Runtime Errors happen while the program is executing, often due to unexpected external factors like a missing file, a lost internet connection, or an attempt to divide a number by zero. The Mindset of a Great Debugger Some "Heisenbugs"—bugs that seem to disappear or change

Often overlooked in favor of fancy UI, console.log() (or print() ) remains the most widely used debug tool on earth. Why? Because it works everywhere, even in production. The art of good logging is knowing what to log: timestamps, thread/process IDs, function entry/exit, and the specific variable state at the moment of failure. The Mindset of a Great Debugger Often overlooked