For me, and I think the majority, memory is where you keep what your brain thinks that it will use again. If your job is to make and fix/tweak the style of a w

For me, and I think the majority, memory is where you keep what your brain thinks that it will use again. If your job is to make and fix/tweak the style of a web page, and you do it practically everyday, you probably can make a pretty decent css file without even looking away from the editor. But if you then need to make a basic html page, you will probably search. If you use an ide with autocompletion, you probably won't remember the correct camelCase of even common functions (is it instaceof or instaceOf?) but if you work on an embedded system with a plain console editor you probably remember them all (or at least the most used ones). I remember when I was actively using Lightning Launcher (an android launcher with JavaScript capabilities) that I could make full scripts almost without pressing delete, when its editor was simply a big textarea (no autocompletion, no colors, not even automatic indentation). I did need to check the docs from time to time, but their limited (and logical) set of basic functions made it easy for me to remember. Nowadays I need to check everything again, because I simply forgot due to not using it much. Answering the question: yes, yes I can, a very basic but working one, simply because I like making small tool pages for myself, coding directly from my phone (in a basic text editor). But when I need to do something not so basic, like checking if the user has scrolled to the bottom of the page, I search it.