How can I comment better on my code?

How to comment Code: Primarily, a single “block” comment should be placed at the top of the function (or file) and describe the purpose the code and any algorithms used to accomplish the goal. In-line comments should be used sparingly, only where the code is not “self-documenting”.

How do you comment code in node?

The first way is the single-line comment by using two forward slashes ( // ).

Are comments in code good?

Good comments compliment your code, while bad ones pull readers away from the main points. Before putting any comments, ask yourself whether it would serve any purposes rather than distract people from comprehending your program. Good codes have rhythm while mediocre codes have a lot of pauses.

How do you write a good comment in JavaScript?

Comment Syntax All characters immediately following the // syntax until the end of the line will be ignored by JavaScript. Block comments, sometimes referred to as mutli-line comments, are written with opening tags ( /* ) and closing tags ( */ ). If you know CSS, then you’re already familiar with block-level comments.

Which option best describes node JS?

Node. js is a platform built on Chrome’s JavaScript runtime for easily building fast and scalable network applications. Node. js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

How do I comment in HTML?

An HTML comment begins with –– and the comment closes with ––> . HTML comments are visible to anyone that views the page source code, but are not rendered when the HTML document is rendered by a browser.

Why we should never use HTML comments?

What are the negatives of HTML comments? worsens the UX – even not visible, the HTML comments are part of the DOM tree and increase the number of DOM elements. This, in turn, affects the quickness and responsiveness, also leads to slower CSS selectors and DOM manipulation.

Should you comment every line of code?

Comments are ultimately useless and cannot be trusted. Comments do not normally change the way programs run. And if they do, then your process is causing more problems then it should. Comments are afterthoughts and can never be anything but. The code is all that matters as that is all that’s processed by the computer.

How do I comment multiple lines in node JS?

Multi-line comments start with /* and end with */ . Any text between /* and */ will be ignored by JavaScript.

What are the best practices for commenting your code?

5 Best Practices for Commenting Your Code 1 (1) Comments are not subtitles 2 (2) Comments are not an art project 3 (3) Header Blocks: Nuisance or Menace? 4 (4) Comments are not source control 5 (5) Comments are a code smell

When do you need comments in source code?

That when you need source code comments, that’s an indication that your code is weak in some way. That your naming conventions, logic, or something else isn’t as transparent as it should be.

Why is Node.js the best server side programming language?

Despite competition from pioneers like PHP and Advance Java, Node.js has emerged to be the more preferred server-side choice for many applications today, thanks to it’s asynchronous I/O, event-driven architecture, light-weightedness, speed, scalability and the fact that it uses the most popular programming language i.e. Javascript.

How to comment your code like a pro?

Each programming language has a different way of commenting in the source code. PHP and HTML and JavaScript and C# all have slightly different symbols that begin and end code. While there are some language-specific practices, too, there are more shared than not.