ALT screenshot of the following bullet points - Run a test suite. If a test fails with an uncaught exception, rerun that test with the raising function augmented to breakpoint three lines before the raised exception, while also providing the current stack trace to the user with called parameters. - Track the arguments for every call to an expensive function. If it’s called with the same parameters ten times, alert someone that they should be calling it once and storing the result. - Profile the stacks that at some point call function f. - Add an output assertion to an optimized function in dev/testing, checking that on all invocations it matches the result of an unoptimized function - Collect production invocations and generate snapshot unit tests from those. - When f is called with x, return f(x) but also log what the results would have been for f(x 1) and f(x-1).
