Clean Code: 7 tips to write clean functions

If it takes more than 3 seconds to understand what a function does, it's time to refactor it. The quality of your functions is inversely proportional to the time it takes to understand them.

Complex functions can lead to errors, make changes difficult, and slow down the onboarding process for new developers. Remember, code is read far more often than written, so investing time in writing clean functions is one of the best investments you can make in the long run.

Here are 7 tips on how I write clean functions:

Keep your functions small

Name your functions well

Limit the number of parameters

Reduce nesting with a return early

Write pure function with no side effects

Avoid boolean flag parameters

Use comments sparingly

We spend 10x more reading the code than writing it. Writing clean functions is one of the most powerful ways to produce readable code. Remember: Coding is not just telling the computer what to do. It's telling another programmer what you want the computer to do. Every line of code you write is a message to your fellow developers. Make it clear, concise, and compelling.


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Managing Packages with NPM
by FreeCodeCamp

npm (Node Package Manager), is a command line tool to install, create, and share packages of JavaScript code written for Node.js. There are many open source packages available on npm, so before starting a project, take some time to explore so you don't end up recreating the wheel for things like working with dates or fetching data from an API.
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10 React security best practices
by Ron Perris

Looking for the best ways to secure your React app? Then you’ve come to the right place! We’ve created this checklist of React security best practices to help you and your team find and fix security issues in your React applications. We’ll also show you how to automatically test your React code for security-related issues and automatically fix them.

1-Use default XSS protection with data binding

2-Watch out for dangerous URLs and URL-based noscript injection

3-Sanitize and render HTML

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6-Check for known vulnerabilities in dependencies

7-Avoid JSON injection attacks

8-Use non-vulnerable versions of React

9-Use linter configurations

10-Avoid dangerous library code


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Explanation:
<strong> element shows the importance of text/paragraph between it’s tags. <em> element indicates emphasis, browser will show the contents of <em> element in italic. <ins> element shows the content that has been inserted, usually it has underline. <del> element shows text that has been deleted from, usually it has a line through the content.
<p>This is <del>not</del> for deletion </p>
Output: This is not for deletion.

Explanation:
The correct syntax for a web address is scheme://prefix.domain:port/path/filename, where scheme is for https or http, prefix is for domain like www, domain denotes domain name, port defines port number, path defines path at server, filename is for name of the document.

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Introduction to Advanced Node and Express Challenges

Authentication is the process or action of verifying the identity of a user or process. Up to this point you have not been able to create an app utilizing this key concept.

The most common and easiest way to use authentication middleware for Node.js is Passport. It is easy to learn, light-weight, and extremely flexible allowing for many strategies, which we will talk about in later challenges. In addition to authentication we will also look at template engines which allow for use of Pug and web sockets which allow for real time communication between all your clients and your server.

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