<h3>That's a terrible problem</h3>In React, we often write conditional statements to display different views, Like this simple example.<pre class="ql-syntax" spellcheck="false">const App = () =&gt; {
 return (
 &lt;&gt;
 {
 loading ? &lt;Loading /&gt; : &lt;List&gt;
 }
 &lt;/&gt;
 )
}
</pre>But when the code size of the project is large enough and there are a lot of JSX conditionals, things can quickly get out of hand.&nbsp;The code becomes extremely messy and poorly readable.Like this code below, I really don't have the courage and confidence to know its details…<pre class="ql-syntax" spellcheck="false">import React, { useState } from "react"

export default function ConditionDemo() {
 const [ loading ] = useState(false)
 const [ isLogin ] = useState(true)
 const [ hasAuth ] = useState(false)
 return (
 &lt;&gt;
 {
 loading ?
 &lt;div className="loading"&gt;
 loading
 &lt;/div&gt; :
 &lt;div className="content"&gt;
 {
 isLogin ?
 (
 hasAuth ?
 &lt;div className="has-permission"&gt;
 has-permission
 &lt;/div&gt; :
 &lt;div className="no-permission"&gt;You have no permission to operate&lt;/div&gt;
 ) :
 &lt;div className="go-login"&gt;Please login first&lt;/div&gt;
 }
 &lt;/div&gt;
 }
 &lt;/&gt;
 )
}
</pre>So in React, what are the ways we can write more readable and maintainable code? <h2>Use the ternary operator</h2>The ternary operator is more suitable for scenarios that require a small number of conditional judgments.If there are many conditional branches, the disaster of the above example will occur.For example, to display a&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">Mobile</code>&nbsp;component on a mobile device and another component on other screens, you can use a ternary expression to achieve:<pre class="ql-syntax" spellcheck="false">export default function AppTernaryExpressions() {
 const isMobilePhone = truereturn (
 &lt;&gt;
 { isMobilePhone ? &lt;MobileComp /&gt; : &lt;PcComp /&gt; }
 &lt;/&gt;
 )
}
</pre> <h2>Use "&amp;&amp;" to simplify the ternary operator</h2>Sometimes we can use "&amp;&amp;" to simplify ternary expressions, such as the following code.<pre class="ql-syntax" spellcheck="false">show ? &lt;ShowComp /&gt; : null
</pre>&amp;&amp;<pre class="ql-syntax" spellcheck="false">!!show &amp;&amp; &lt;ShowComp /&gt;
</pre>Why use two exclamation marks to convert the&nbsp;show&nbsp;to a boolean value? You are welcome to check out my&nbsp;<a href="https://javascript.plainenglish.io/my-boss-you-dont-know-react-at-all-f493970f1807" rel="noopener noreferrer" target="_blank" style="color: inherit;">other article</a>&nbsp;with very detailed instructions. <h2>Use "if" statement</h2>If there is data, the&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">List</code>&nbsp;component is displayed. If there is no data, nothing is displayed. Using the&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">if</code>&nbsp;statement is also a good choice.<pre class="ql-syntax" spellcheck="false">export default function AppIf() {
 const { list } = useList()
 
 if (!list) {
 return null
 }
 
 return (
 &lt;List list={list} /&gt;
 )
}
</pre>Of course, sending a request does not always succeed and may fail. We can add some&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">if</code>&nbsp;branches to control different logic.<pre class="ql-syntax" spellcheck="false">export default function AppIf() {
 const { isLoading, isError, list } = useList()
 
 if (isLoading) {
 return &lt;div&gt;Loading...&lt;/div&gt;
 }
 
 if (isError) {
 return &lt;div&gt;Error...&lt;/div&gt;
 }
 
 return &lt;List list={list} /&gt;
}
</pre> <h2>Use "switch"</h2>Too many&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">if</code>&nbsp;statements can lead to cluttered components. Multiple conditions can be extracted into separate components containing&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">switch</code>&nbsp;statements.Let's take a look at a simple menu toggle component:<pre class="ql-syntax" spellcheck="false">const MenuItem({ menu }) =&gt; {
 switch (menu) {
 case 1:
 return &lt;Users /&gt;
 ﻿case 2:
 return &lt;Chats /&gt;
 ﻿case 3:
 return &lt;Rooms /&gt;
 ﻿default:
 return null
 }
}

export default function Menu() {
 const [menu, setMenu] = React.useState(1)

 const toggleMenu = () =&gt; {
 setMenu((m) =&gt; {
 if (m === 3) return 1return m + 1
 })
 }

 return (
 &lt;&gt;
 ﻿ &lt;MenuItem menu={ menu } /&gt;
 ﻿ &lt;button onClick={ toggleMenu }&gt;toggle menu&lt;/button&gt;
﻿ &lt;/&gt;
 )
} 
</pre>You can see that using 'switch' can easily express the corresponding relationship between 'menu' and components. <h2>Use enumerations</h2>If we need to display the three components&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">Foo</code>,&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">Bar</code>, and&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">Default</code>&nbsp;according to the user's different states, enumeration will be more elegant than the&nbsp;<code style="background-color: rgba(221, 17, 0, 0.067);">if</code>&nbsp;statement.<pre class="ql-syntax" spellcheck="false">const Foo = () =&gt; {
 return &lt;div&gt;foo&lt;/div&gt;
}
const Bar = () =&gt; {
 return &lt;div&gt;bar&lt;/div&gt;
}
const Default = () =&gt; {
 return &lt;div&gt;default&lt;/div&gt;
}

const statusMap = {
 foo: &lt;Foo /&gt;,
 bar: &lt;Bar /&gt;,
 default: &lt;Default /&gt;
}

const App = () =&gt; {
 const [status] = useState('default')
 return (
 statusMap[status]
 )
}
</pre> <h2>Use JSX Control Statements</h2><a href="https://github.com/AlexGilleran/jsx-control-statements" rel="noopener noreferrer" target="_blank" style="color: inherit;">The JSX control statements</a>&nbsp;library extends the functionality of JSX so that you can directly use JSX to implement conditional rendering.Let's take an example.<pre class="ql-syntax" spellcheck="false">export default function App(props) {
 const [ hasLogin ] = useState(false)
 
 ﻿return (
 &lt;Choose&gt;
 ﻿&lt;When condition={ hasLogin }&gt;
 ﻿ &lt;button&gt;Logout&lt;/button&gt;
 ﻿ &lt;/When&gt;
 ﻿&lt;When condition={ !hasLogin }&gt;
﻿ &lt;button&gt;Login&lt;/button&gt;
﻿ &lt;/When&gt;
﻿ &lt;/Choose&gt;
 )
}
</pre> <h2>Finally</h2>Thanks for reading.&nbsp;I am looking&nbsp;forward to your following and reading more high-quality articles.

We've all been buried in a sea of conditional statements in React. What starts simple can quickly spiral into a mess of unreadable code. In this post, we'll explore ways to write cleaner, more maintainable conditional rendering in React, so you can keep your codebase under control as it grows.

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6 Smarter Ways to Write Conditionals In React You Should Know About

In today's digital age, Full Stack Development has become one of the most sought-after skills. As companies transition to online platforms and software solutions, the demand for full stack developers is growing. But what exactly is a full stack developer, and how can you become one?In this comprehensive guide, we’ll explore the role of a full stack developer, the skills you need to master, and a step-by-step approach to launching your career in this dynamic field. <h2>What is a Full Stack Developer?</h2>A full stack developer is a professional who can work on both the front-end (client side) and back-end (server side) of a web application. This means they are proficient in a variety of technologies and frameworks, allowing them to handle everything from building user interfaces to managing databases and server configurations.Front-end development focuses on the visual and interactive aspects of a website, ensuring that users have a smooth and responsive experience. Back-end development, on the other hand, deals with the server, database, and logic that power the website's functionality. <h2>Why Should You Become a Full Stack Developer?</h2>The appeal of becoming a full stack developer lies in the versatility and demand for the role. Here are a few key reasons to consider pursuing this career:<ul><li>High Demand: Full stack developers are in high demand due to their ability to handle multiple layers of application development.</li><li>Higher Salaries: Companies are willing to pay competitive salaries for professionals who can manage both front-end and back-end tasks.</li><li>Flexibility: You can work in various industries, from tech startups to large enterprises, or even freelance.</li><li>Comprehensive Understanding: Being proficient in both front-end and back-end technologies gives you a complete understanding of how web applications work.</li></ul> <h2>Essential Skills for a Full Stack Developer</h2>To become a successful full stack developer, you need to be proficient in a wide range of technologies. Let’s break these down:1. HTML/CSSHTML (Hypertext Markup Language) and CSS (Cascading Style Sheets) are the building blocks of web development. HTML provides the structure, while CSS defines the style and layout of a website. Mastering these languages is the first step to becoming a full stack developer.2. JavaScriptJavaScript is a must-learn programming language for any aspiring full stack developer. It enables dynamic interactions on websites, making them more interactive and responsive. Additionally, JavaScript has several frameworks and libraries like React, Angular, and Vue.js for front-end development, as well as Node.js for back-end development.3. Backend Programming LanguagesFor back-end development, you'll need to learn one or more server-side languages. Some of the most popular ones include:<ul><li>Node.js (JavaScript-based)</li><li>Python (with frameworks like Django or Flask)</li><li>Ruby (with Ruby on Rails)</li><li>Java (for enterprise-level applications)</li></ul>Each language has its strengths, and the choice depends on your project requirements and career aspirations.4. DatabasesUnderstanding how to work with databases is essential for back-end development. Full stack developers should be proficient in both SQL (Structured Query Language) and NoSQL databases. Popular databases include:<ul><li>MySQL</li><li>PostgreSQL</li><li>MongoDB</li><li>SQLite</li></ul>Knowing how to manage data, write queries, and optimize database performance is crucial for full stack development.5. Version Control/GitVersion control systems like Git are essential for tracking changes in code and collaborating with other developers. Git allows you to work on projects with a team while maintaining a history of all changes, making it easy to revert or merge code when necessary.6. APIs (Application Programming Interfaces)As a full stack developer, you’ll often need to connect your front-end applications to back-end servers through APIs. Knowledge of RESTful APIs and how to work with third-party APIs can significantly enhance your capabilities.7. Server ManagementKnowing how to manage and configure servers is an important skill for a full stack developer. Whether you are using cloud-based solutions like AWS or setting up your own server, understanding how to deploy and maintain your applications is vital.8. DevOpsWhile not always a requirement, having some knowledge of DevOps practices can set you apart from other developers. This includes automating deployments, monitoring applications, and ensuring a smooth development pipeline from coding to production. <h2>Step-by-Step Guide to Becoming a Full Stack Developer</h2>Step 1: Learn the Fundamentals of Web DevelopmentStart by mastering the basics of web development, including HTML, CSS, and JavaScript. There are plenty of online resources, tutorials, and bootcamps that can help you get started.Step 2: Choose a Programming LanguageOnce you are comfortable with the basics, choose a back-end programming language to specialize in. Whether you pick JavaScript (Node.js), Python, Ruby, or Java, make sure to learn the syntax, libraries, and frameworks associated with that language.Step 3: Understand DatabasesStart working with both SQL and NoSQL databases. Practice writing queries, creating database schemas, and connecting your back-end code to your database.Step 4: Learn Front-End FrameworksOnce you’ve covered the basics of HTML, CSS, and JavaScript, dive into front-end frameworks like React, Angular, or Vue.js. These will help you build dynamic, interactive user interfaces more efficiently.Step 5: Build ProjectsBuilding real-world projects is one of the most effective ways to learn full stack development. Create personal projects, contribute to open-source, or take on freelance work to put your skills to the test.Step 6: Version Control and CollaborationLearn how to use Git and GitHub to collaborate with other developers. This skill is essential for working in a team environment, whether it’s for open-source contributions or corporate projects.Step 7: Explore APIs and Third-Party ServicesLearn how to integrate APIs into your applications. Whether you're using a weather API, a payment gateway, or social media authentication, working with APIs is a crucial part of full stack development.<h3>Step 8: Gain Knowledge of Server Management</h3>Understanding how to manage and deploy applications on servers is crucial. Familiarize yourself with cloud platforms like AWS, Google Cloud, or Heroku. Learn how to set up your own server using Linux, Nginx, or Apache.Step 9: Learn DevOps BasicsGaining some knowledge in DevOps will give you an edge in deploying, maintaining, and monitoring applications. Tools like Docker, Kubernetes, and CI/CD pipelines can streamline the deployment process and ensure your applications run smoothly.Step 10: Stay Updated with the Latest TrendsThe tech world evolves rapidly, and as a full stack developer, staying current with the latest trends and tools is crucial. Follow industry blogs, attend webinars, and experiment with new technologies to keep your skills sharp. <h2>Common Career Paths for Full Stack Developers</h2>As a full stack developer, you’ll have several career opportunities. Here are some common paths:<ul><li>Web Developer: Build and maintain websites and web applications.</li><li>Mobile App Developer: With frameworks like React Native, full stack developers can build mobile apps.</li><li>Software Engineer: Work on large-scale software solutions.</li><li>DevOps Engineer: Combine development with operations to optimize the deployment pipeline.</li><li>Tech Lead: Oversee development teams and projects.</li></ul> <h2>Conclusion</h2>Becoming a full stack developer requires dedication, continuous learning, and hands-on experience. Mastering both front-end and back-end technologies will not only make you a versatile developer but also open up numerous career opportunities in today’s tech-driven world. By following the steps outlined in this guide and consistently honing your skills, you'll be well on your way to becoming a proficient full stack developer.Now is the perfect time to start your journey. Good luck!

Learn essential steps and skills to start your journey as a full stack developer, from front to back end.

How to Become a Full Stack Developer: A Complete Guide

Are you interested in creating dynamic and visually appealing websites? Frontend development is a crucial skill in today's tech-driven world, and mastering it can open up exciting career opportunities. In this guide, we'll explore the key steps and skills you need to become a successful frontend developer.<h2> </h2><h2>What is Frontend Development?</h2>Frontend development is all about creating the parts of a website or web application that users interact with. This includes designing buttons, creating forms, and ensuring the overall layout looks appealing across different devices. It’s a blend of creativity and technical skill, with a strong focus on user experience. <h2>Key Skills Every Frontend Developer Needs</h2>To thrive as a frontend developer, you’ll need to hone specific skills:<ul><li>Problem-solving: You'll encounter challenges that require creative solutions.</li><li>Attention to detail: Small mistakes can significantly affect user interaction.</li><li>Design knowledge: A good sense of aesthetics is important when creating visually appealing websites.</li><li>Collaboration: Often, you'll work alongside back-end developers, designers, and project managers to bring projects to life.</li></ul> <h2>Essential Programming Languages</h2>Mastering these core technologies is fundamental to becoming a frontend developer.<ul><li>HTML (Hypertext Markup Language: HTML is the building block of web development. It provides the structure for a website, defining the elements like headings, paragraphs, and images.</li><li>CSS (Cascading Style Sheets): CSS handles the presentation of your HTML elements, allowing you to style your website. You can control colors, fonts, spacing, and layout to create a polished look.</li><li>JavaScript: JavaScript adds interactivity to your website. It powers things like dynamic menus, sliders, and form validation. JavaScript is an essential language for any aspiring frontend developer.</li></ul> <h2>Mastering Frameworks and Libraries</h2>To enhance your development speed and code efficiency, it's important to familiarize yourself with popular frameworks and libraries.<ul><li>React.js: React is a JavaScript library that allows you to build reusable UI components. It’s widely used due to its simplicity and scalability, making it a must-learn for frontend developers.</li><li>Vue.js: Vue.js is a progressive framework for building user interfaces. Its gentle learning curve makes it great for beginners, while still offering the flexibility needed for complex projects.</li><li>Angular: Angular is a full-fledged framework developed by Google. It’s best suited for building large-scale applications, offering tools for routing, forms, and more, all within a single framework.</li></ul> <h2>Building a Frontend Developer Portfolio</h2>A strong portfolio is critical when applying for frontend development jobs. Here’s how to create one that stands out:<ul><li>Showcase Your Skills: Include a range of projects that demonstrate your abilities with HTML, CSS, JavaScript, and frameworks like React or Vue.</li><li>Live Demos: Whenever possible, host your projects online so potential employers can see them in action. Services like GitHub Pages or Netlify are great for this.</li><li>Highlight Responsiveness: Make sure your projects work well on both desktop and mobile devices. This shows you understand responsive design, a key aspect of frontend development.</li></ul> <h2>How to Land Your First Frontend Developer Job</h2>Once you’ve built up your skills and portfolio, it’s time to apply for jobs. Here are a few tips:<ul><li>Networking: Connect with professionals in the field through LinkedIn, tech meetups, and online communities.</li><li>Keep Learning: Technology is constantly evolving, so make sure to stay updated with new tools and trends.</li><li>Prepare for Interviews: Familiarize yourself with common technical interview questions and be ready to showcase your portfolio.</li><li>Freelance or Intern: If you're finding it hard to get a full-time job, consider freelancing or interning to gain real-world experience.</li></ul> <h2>Conclusion</h2>Becoming a frontend developer takes dedication, but the rewards are well worth the effort. By mastering HTML, CSS, JavaScript, and popular frameworks like React, you’ll be well on your way to building beautiful, functional websites. Start building your portfolio today, and with persistence, your first frontend development job will be within reach.

Discover the essential skills and steps to launch your career in frontend development effectively.

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6 Smarter Ways to Write Conditionals In React You Should Know About

How to Become a Full Stack Developer: A Complete Guide

How to Become a Frontend Developer: A Complete Guide