JS Extremely new to code and just want to find out why this code is the way it is? : I've only been coding for like 3 days and I've acquired a lot of knowledge on coding in discord.js because i'm currently working on a project that allows me to create a bot using the voice application discord. I've been following some code for a command handler and I know this probably is ludicrous to a lot of people but what does the 'i' and 'f' mean in this code? and how is it defined + how does the code know that its the file name and amount of files? extremely sorry for wasting anyone time but i genuinely couldn't find the answer to this due to it being quite a specific request. All answers are highly appreciated.