Commenting your code may seem arbitrary, but doing so while you’re writing your code may just save you lots of time and frustration when you need to look back through your code and understand your thought process at the time.
What are C-style comments?
/* This is a comment */
/* C-style comments can also span to
as many lines as you’d like,
as this sentence is showing here. */
// This is a one-line comment!
of HTML comments (–>).