They are usually drafted to explain what a single line of code does or what it is supposed to produce so that it can help someone referring to the source code. Talk; Single-Line Comments in R Single-line comments are comments that require only one line. WebYou can add comments to your HTML source by using the following syntax: . as an aside. When and Why to use Comments in programming? lurk. comment about (someone or something) comment (up)on (someone or something) lurker. Webto make remarks, observations, or criticisms: He refused to comment on the decision of the court. A statement of fact or opinion, especially a remark that expresses a personal reaction or attitude. in the start tag, but not in the end tag. You can add comments to your HTML source by using the following syntax: