react native best practices

10 Best Practices While Creating React Native Apps


In the world of mobile app development, changes are an integral part of it. It’s no surprise that new technologies generate excitement now and then. Developers want technologies that can deploy quickly, have shorter development cycles, and deliver better app performance. As a result, everyone wants to make apps that provide a consistent user experience and are faster.

React is a Facebook-created library that allows for the integration of a variety of interesting components. Any developer can create their components and make them available to the rest of the community.

If you’re a frontend developer working on highly interactive user interfaces, you’re probably familiar with React. When working on your React-powered projects, be sure to follow the React best practices. This will aid in the organization of your code.

What is React Native?

React Native has been on the market for two years and is quickly replacing conventional development methods. JavaScript and React are used to build native Android and iOS mobile applications. React is a UI library written in JavaScript. We can use the same small UI component in React Native iOS and Android apps because React leverages Complex UI to Component-based UI. Instead of recompiling, you can easily reload the react native program. You can also run new code while keeping our application state with hot reloading. Let us focus on the react native best practices:

1. Components should be small and function-specific

As we all know, React allows us to create large components that perform multiple tasks. However, keeping components small so that each one corresponds to a single function is a better way to design them. A single component should ideally render a specific section of your page or change a particular behavior. There are numerous benefits to this:

  • Function-specific components can be used independently, making testing and maintenance more convenient.
  • Each small component can be used in a variety of different projects.
  • Performance optimizations are simpler to implement with smaller components.
  • Smaller modules are simpler to upgrade.
  • Larger components must operate at a higher level and can be more difficult to maintain.

You can create either concise components or multiple function-specific components depending on the organization. You can create many components and recombine them as per requirement.

2. DRY the code by consolidating redundant code

A general rule for all code is that it should be as short and concise as possible. Similarly, React best practices guide the same; you should keep the code small and precise. Don’t repeat yourself – DRY means avoid the duplication of the code. You can scrutinize the code and prevent the repetition of code, and eliminates duplication. It depends on the reusability principle of React. For example, if you want to add multiple buttons with icons. You can use a simple Iconbutton instead of adding markup for each one.

const buttons = [‘facebook’, ‘twitter’, ‘youtube’];

return (


{ (button) => {

return (


onClick={doStuff( button )}




} )}


3. Reusability of components is very important

Component reusability can be enhanced by adhering to the rule of one feature = one component. This implies that if a component for a function already exists, you do not attempt to construct a new component for that function. Not only can you gain continuity by reusing components through various projects, but you will also be contributing to the culture.

If a component becomes too big, unwieldy, or difficult to manage, it’s best practice to break it down into smaller components.

You can go one step further and build an icon-handling Button component. Then you’ll have a part to use anytime you need a button. Making it more flexible would allow you to cover a wide variety of scenarios with a single piece of code. You must aim for a point in the center. Your components should be abstract enough to be useful but not too complicated.

class IconButton extends React.Component {


render() {

return (

<button onClick={this.props.onClick()}>

<i class={this.props.iconClass}></i>





4. Classification of the Components

You can develop a better ecosystem in React native just by classifying the components as per the component’s nature, such as the presentation component. This is similar to the stateless component; the second component is the Container component which is the same as the stateful component. These are the best React native practices a developer can follow.

  • Container Component:

It includes information about the component and offers stateful properties to the presentational component.

  • Presentation component:

These components primarily deal with the UI framework part. It uses props for callback and receive data and won’t provide data loading information. It also doesn’t offer mutable options.

5. Each element should have a unique key

For any application, lists are an integral part of coding. You can envelope various use cases into a list. It is the best React Native practice for security. Such lists have a direct impact on application performance. Wrong coding may slow down the app’s performance. So it is recommended to use a unique key for each element. The best way to assign a unique key to a component is by assigning a particular ID.

const todoItems = =>

<li key={todo._id}>




6. Do not include logs in the release build

It’s a no-no to include logs in release builds because it slows down your app. This is true for most logger types available, particularly if you work in a redux logger.

Excessive use of the console.log statement, which starts a log thread to keep track of events and alerts, causes the application to slow down.

A Console.log statement is used for debugging since it shows data that can be used to track down errors. Although generating logs is easy, disabling them is needed for the release build setup.

7. TouchWithoutFeedback should not be used

In general, the buttons component in React Native does not provide much in the way of real-time control display. The RN includes touchable button components in various forms to address this problem. TouchableHighlight, TouchableOpacity, Touchable Native Feedback, and finally touchable without feedback are on the list, and this is where the developer must exercise extreme caution. According to the documentation on the RN website, you should have a good reason for using TouchWithoutFeeedback because each feature must emit visual feedback when clicked. When you don’t want to cause animated feedback when taking action, you can use this touchable feature.

8. Using a User Interface Framework

React was created with the goal of creating a user interface platform that provides the best possible experience. It was created to help with the development of UI templates using the JS thread.

As a result, using the UI system to flesh out the relevant elements in real-time makes perfect is the most widely used UI system. Not only does such a platform speed up the construction process, but it also allows for the selection of particular materials.

These unique components would have been difficult to monitor and include in the construct without a solid framework.

9. React Native images optimization and cloud storage

React Native optimization is very important for developing a good application. You can resize the images on a local machine and upload them to cloud storage. And then, you can get those images using the CDN link and return them through API. This process will load the images at high speed.

10. Keep in mind the other naming conventions as well

JSX (JavaScript Extension) files are commonly used when operating with React. As a result, any React component you build should be called in Pascal case or upper camel case. This means no spaces between names and capitalizing the first letter of each word.

For example, if you are creating a function for submitting a form, then use the name SubmitForm in camel case instead of any other naming conventions. The upper camel casing is also known as the Pascal case.

React Native will help you to build the most complex UI. Ambab’s development team is working with React Native for more than nine years to create innovative apps. If you need any help for building react Native-based apps, then contact us.