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All About | React & React Native Programmers

Updated: Mar 28

What do they do? How can specialists in this field help your team? And how do they improve your code?

React Native Programmer

Before diving in, let's highlight an important distinction: React & React Native are two different JavaScript libraries. Both build user interfaces, but for different purposes:


A JavaScript library for building user interfaces (UIs) for web applications. React allows developers to create reusable UI components and manage the state of an application.

React Native

React Native programmers are responsible for developing and maintaining mobile apps that run seamlessly on both Android and iOS platforms.

It's an open-source framework for building native cross-platform mobile applications using React and JavaScript. Instead of rendering HTML and CSS, React Native uses native components to render the UI of the app, providing a natural look and feel.

In summary, React is designed for web development while React Native is for native mobile app development. Both share the same principles and syntax, but the components and application programming interfaces (APIs) are different to fit specific needs.

Software consultancies like BearPeak Technology Group have experts who can work on React and React Native projects. Now that we understand the differences between the two, let's explore what React & React Native programmers do:

1. App Design

What do Facebook, Instagram, Walmart, UberEats, and AirBnb have in common? Their mobile apps were designed with the React Native framework. It's one of the highest-preferred technologies for cross-platform applications.

React Native Programmer on Phone

React & React Native programmers design and implement user-friendly, interactive applications. They make sure the app is:

  • Easy to learn

  • Simple to use

  • Intuitive

  • Efficient for the user to accomplish their tasks

The app design involves elements such as clear navigation, logical organization of information, meaningful feedback, visually appealing design, and accessibility for diverse users.

2. Writing Code

To follow best practices, every developer needs to write clean, maintainable, and efficient code. But what is that defined as?

Here's an example of clean JavaScript code that demonstrates how to calculate the factorial of a number:

typescriptCopy code
function factorial(n) {
  let result = 1;
  for (let i = 1; i <= n; i++) {
    result *= i;
  return result;

const number = 5;
const result = factorial(number);
console.log(`The factorial of ${number} is ${result}.`);

In this code, the factorial function takes a number n as an input and uses a for loop to calculate the factorial. The variable result is initialized to 1 and is updated on each iteration of the loop by multiplying it by i. The function returns the final result.

The code is clean and easy to read because it uses meaningful variable names, consistent indentation, and clear comments. It follows best practices for writing maintainable JavaScript code.

Let's look at a messy & disorganized example for comparison. This is also JavaScript code demonstrating how to calculate the factorial of a number:

javascriptCopy code
function f(n){var r=1;for(var i=1;i<=n;i++){r*=i;}return r;}

const x=5;console.log("The factorial of "+x+" is "+f(x)+".");

In this code, the f function calculates the factorial of a number n using a for loop. The variable r represents the result and is updated on each iteration of the loop.

The code uses abbreviated variable names, inconsistent indentation, and is lacking clear comments. These make it harder to read and understand. This is a classic example of what is often referred to as "spaghetti code", which can lead to maintenance issues and difficulty fixing bugs in the future.

You want updates that improve your software instead of causing more issues. Hire an expert React Native programmer for your team so you'll be delivered clean, efficient code.

3. Debugging

Ever wondered what debugging really looks like? Here's an example:

javascriptCopy code
function divide(a, b) {
  return a / b;

let num1 = 10;
let num2 = 0;
let result = divide(num1, num2);

This code will produce an error because it is trying to divide by zero. To debug the code, the programmer can add a try-catch block to handle the error:

javascriptCopy code
function divide(a, b) {
  try {
    return a / b;
  } catch (error) {
    console.error("Error: Cannot divide by zero");

let num1 = 10;
let num2 = 0;
let result = divide(num1, num2);

This code will output "Error: Cannot divide by zero" instead of producing an error.

This is just a basic example of the many kinds of errors software developers may come across as they write and edit.

4. Fetching & Manipulating Data

Weather App

Let's say you're making a weather app. It needs to retrieve current weather information from a database and display it to your user.

To fetch this data, programmers use Application Programming Interfaces (APIs). They are sets of protocols, routines, and tools that allow different software systems to communicate with one another.

For this weather app, a programmer may use an API to retrieve the current weather information from a weather database. The API specifies the request format, data format, and the expected response. The weather app sends the request to the API, which retrieves the data and returns it to the app, where it can be displayed to the user.

React & React Native programmers utilize APIs for web and mobile app development. This tool plays a key role in modern software development by making it easier to integrate different systems and streamline the development process.

5. Collaborating

Programming requires teamwork: React & React Native developers collaborate with designers, project managers, and more to ensure the delivery of high-quality products. But what exactly makes deliverables high-quality?

  • Functionality: The code meets the requirements, is error-free and performs as expected.

  • Readability: The code is well-organized, easy to understand and maintain, with clear and descriptive variable and function names.

  • Efficiency: The code is optimized for performance and scalability and avoids unnecessary complexity.

  • Testing: The code has been thoroughly tested, covering all possible scenarios, and with automated tests where possible.

  • Documentation: The code is accompanied by clear and comprehensive documentation, including a clear explanation of how the code works and how to use it.

  • Standards: The code follows established coding standards and uses best practices in terms of security, accessibility, and maintainability.

6. Staying Up-to-Date

It's important for React & React Native programmers to have strong knowledge of JavaScript libraries, mobile development best practices, as well as the latest developments and technologies in the React Native ecosystem. The software development world is constantly changing and evolving.

To be successful, programmers continuously work on having good communication skills, problem-solving skills, and the ability to work independently or as part of a team. To deliver high-quality work on time and within budget, programmers are constantly working on improving themselves and their capabilities.

React Icon

React & React Native programmers play a crucial role in developing and maintaining cross-platform applications that deliver a seamless experience. With their skills and expertise, they help companies like yours create innovative and engaging mobile products that meet the ever-expanding demands of the digital age.

Ready to Work with a React or React Native Specialist?

If this doesn't sound like your field of expertise, hire someone who can help! Software consultancies like BearPeak Technology Group have expert developers for hire who can do all of these tasks for you. Check us out! We're a Colorado-based team of engineers who help you hire remote software developers efficiently and reliably. We offer free consultations and are dedicated to your startup's success:

It's important for us to disclose the multiple authors of this blog post: The original outline was written by chat.openai, an exciting new AI language model. The content was then edited and revised by Lindey Hoak.

"OpenAI (2023). ChatGPT. Retrieved from"

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