Sometimes extra explanation is warranted for a section of code. Programmers can leave comments in their source code that the compiler will ignore but people reading the source code may find useful.
Here’s a simple (line) comment. These last until the end of the line.
// Hello World!
There are also multi-line, or block comments. These last until you close them with the closing delimiter. They can also be nested.
/*
* This is another type of comment, a block comment.
* Block comments are useful for temporarily disabling chunks of code.
* /* Block comments can be /* nested, */ */ so it takes only a few
* keystrokes to comment out large chunks of code.
*/
/*
You don't need the `*` on every line either,
it just looks nice.
*/
