I gave up on memorizing APIs long ago (like I regularly have to look up how to lower case a string in languages I've used daily for years). This was triggered

I gave up on memorizing APIs long ago (like I regularly have to look up how to lower case a string in languages I've used daily for years). This was triggered by regularly moving between multiple languages with confusing levels of similarity (e.g. ",".join([1,2,3]) vs. [1,2,3].join(",")) where it was impossible to keep straight. However this does not meaningfully impact my productivity because I 1) have gotten really fast at looking stuff up if needed and 2) the tools I use make it really easy to find and adapt similar code that I've written before. I really think programmers will in general gain much more by taking the time to understand the code they are working on (importantly including the code all the other people on the project are writing) than on low level APIs. The latter can be explored with Google and Stack Overflow, and generally safely assumed to do what it says on the tin, but the former will be the source of endless surprise and confusion.