How to debug a bug: Replicate, Isolate, Hypothesize, Test

A developer's real job isn't writing code; it's debugging. When a critical bug appears, panic is the enemy. The solution is a calm, systematic process. First, I Replicate the bug. I must be able to make it happen 100% of the time. If I can't, I can't fix it. Second, I Isolate it. I "divide and conquer" the code to find the smallest possible area where the bug could be. Third, I form a Hypothesis ('I believe the error is X') and then write a test to prove it. Only once proven do I write the fix and a new test to ensure it never happens again. #Debugging #ProblemSolving #DeveloperLife #SoftwareTesting

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