Explain how to use mutation testing to find weak assertions and what to do with surviving mutants.
Skills tagged “explain”
Explain and write window functions such as ranking, running totals and lag comparisons.
Explain what a spreadsheet formula does, step by step, and point out fragile references.
Explain how to find and read the logs that matter when diagnosing a problem.
Explain an algorithm step by step, with its complexity and a small worked example.
Explain how to rebase or squash commits safely and what to check before a force push.
Explain what an unfamiliar module does, including its inputs, outputs and hidden side effects.