I often forget some commonly used function definitions, especially when python and javascript have different arguments. I use http://devdocs.io/ http://devdocs.

I often forget some commonly used function definitions, especially when python and javascript have different arguments. I use http://devdocs.io/ http://devdocs.io/ which is very quick, but I would probably save a lot of annoyance and avoid these pauses if I just memorized them. http://devdocs.io/javascript/global_objects/array/join http://devdocs.io/javascript/global_objects/array/join http://devdocs.io/python~2.7/library/stdtypes#str.join http://devdocs.io/python~2.7/library/stdtypes#str.join