In computer programming, a comment is a programming language construct used to embed programmer-readable annotations in the source code of a computer program.
Those annotations are potentially significant to programmers but are generally ignored by compilers and interpreters. Comments are usually added with the purpose of making the source code easier to understand. The syntax and rules for comments vary and are usually defined in a programming language specification.
The comment syntax can also be appropriated for consumption by a documentation generator tool.
- The comment article on Wikipedia