Best Practices to follow in Angular Development– Part II

Best Practices to follow in Angular Development– Part II
In our last blog, i.e. Best Practices to follow in Angular Development in 2020– Part I, we had outlined numerous Angular app development practices that could be highly beneficial to the Angular developers. These included the following:
  • Rules for Angular Coding Styles
  • Top Security Practices to be followed in Angular
  • Routing and related Practices to be considered in Angular
  • How to prevent memory Leaks
  • How to use Template Directive
  • Utilization of noteworthy accessibility tool- Angular CLI
So, this blog is the continuation of Part I and here, you will get a glimpse of a few more important tips and tricks that ease out the development process in Angular as well as result in an impeccable end-product. Do read the Part I blog here.

Ideal Tips and Tricks for Angular App Development Process

Taking the advantage of ES6 features
In Angular, one of the JS versions-ECMAScript, gets updated with interesting features and functionalities in every release of Angular. ES6 is its latest version and has vital features available for efficient development.
  • ‘let and const’ instead of ‘var’: By making use of ‘let and const‘ rather than ‘var‘ helps you prevent the issues related to var. Developers can use ‘let‘in a normal situation and the value doesn’t get changed, then ‘const’ should be in its place.
  • Spread operator: ES6 also comes with a ‘spread operator’ (depicted by three dots (…)) and is commonly used for arrays; but can also help in some common tasks. It helps ‘iterable‘ that can be, sets, strings, arrays, etc. to spread in the receiver.
Naming conventions
Naming conventions improves the readability and maintainability to a great extent. It helps the Angular app developers to find the required code, filenames, folders, etc. faster and makes the understanding easier. So, follow the below-mentioned naming conventions, as indicated by the Angular style guide:
  • Use consistent names for all the available symbols.
  • In the descriptive names, make use of dashes for separating words
  • Follow a certain pattern that explains the features of the symbol first and then its type. The recommended pattern- feature.type.ts.
  • Make use of dots for separating the descriptive name from the type.
  • Also, make use of conventional type names like.component, .service, .module, .directive, .pipe, etc.
Maintaining the folder structure properly
It is of utmost importance to maintain a proper folder structure during Angular app development that can easily adapt to any modifications done during the development process. For instance:
— app
|– modules
|– home
|– [+] components
|– [+] pages
|– home-routing.module.ts
|– home.module.ts
|– core
|– [+] authentication
|– [+] footer
|– [+] guards
|– [+] http
|– [+] interceptors
|– [+] mocks
|– [+] services
|– [+] header
|– core.module.ts
|– ensureModuleLoadedOnceGuard.t
|– logger.service.ts
|– shared
|– [+] components
|– [+] directives
|– [+] pipes
|– [+] models
|– [+] configs
|– assets
|– scss
|– [+] partials
|– _base.scss
|– styles.scss
Using state management libraries
In Angular, state management is useful for the management of state transitions as it helps store the state of any kind of data. Several state management libraries like NGXS, NGRX, Akita, etc. are available and they come with different usages, purposes, states, etc. Amongst all of these, NGXS is one of the most widely preferred libraries since it has an easier learning curve and is highly stable as compared to others.
Using the right operators
Using appropriate operators in Angular is essential for various situations, especially when the flattening operators are used with the observables. So, follow the below ways for this:
  • Try to use mergeMap for handling all the emissions concurrently if you are willing to handle one emission after the other goes for concatMap.
  • Try to use switchMap when you want to ignore the previous emissions because of the new ones.
  • For canceling the new emissions, try using an operator called exhaustMap.
Utilizing service workers for a responsive app
Service workers are especially helpful in making the apps interactive and responsive. They help in converting the SPAs into PWAs by integrating native features into them. They help in providing a native experience to the apps. They help in caching the version completely when the web pages are refreshed. Service workers also load the new or latest cached code in other tabs. They also download resources when the content is changed. Service workers can be used with any version of Angular above the fifth version.
Isolation of all the API hacks
For fixing the bugs and issues in the APIs, it is essential to have the hacks in components and also to isolate the API hacks in one place. This will help in keeping the hacks close to the API and thus, minimum code will have to deal with the un-hacked code. It also helps the Angular developers to find these hacks easily while fixing the bugs.
Using Smart vs. Dummy Components
Separating the smart and dummy components is another important practice that every Angular app development company should follow. Dummy components are utilized only for presentation purposes, so they do not know where the data comes from. In such scenarios, using smart components that can inherit the presentation logic of dummy components is the best approach.
Ensuring proper documentation as much as possible
Last but not the least, it is a great practice to document the code, methods used, variables, etc. wherever possible. This helps other Angular developers to understand the logic and purpose of the code; which in turn improves code readability and management. Also, documenting the role and the applications of every variable and method is a good practice. For methods, every single parameter needs to be defined with multi-line comments specifying in brief about the tasks that the method accomplishes.

Key Takeaways:

Every release of Angular comes with some exciting features that the developer community and the Angular app development companies must be aware of. These will help in proactively avoiding blunders during development and keeping the applications bug-free.
Do have a look at our blogs for more knowledge on Angular:
That is all for today!
I hope this blog will be useful to every software company providing Angular app development services during the development of their Angular projects. In case you have some more tips and tricks to share with us, do comment below.
We would like to hear about it!

Top 8 Tools for Debugging React Native Applications!

Top 8 Tools for Debugging React Native Applications!
React native app development company
Debugging an application is the most essential part of the complete React Native development process before the application is pushed to the production phase. This is true for other technologies as well. Debugging involves thorough checking of the code and helps in the early detection of error conditions. Fixing these errors or bugs during the React Native app development process, instead of fixing them in the production stages can be highly economical for every company offering React Native app development services.
So, how does the debugging take place in React Native? Well, thanks to the availability of a wide range of React Native debugging tools that help the developers debug their code efficiently in a short time.
This post is a brief guide for you, where we will be exploring the most popular debugging tools used for React Native applications globally. So let’s quickly get started.

Most Efficient Debugging Tools for React Native Developers

React native app development
React Chrome Developer Tools
‘Chrome DevTools’ is usually the first name that comes to the mind of a React Native developer for debugging the code of an app. Being powered by JavaScript, this tool enables the debugging of both web appsas well as mobile apps. The React Native framework supports this tool through its remote debugging abilities by default.
So how does this tool work?
When your React Native app is running on an Android Emulator and you have to access the in-app developer menu, press ‘Cmd+M’ on Mac or ‘Ctrl+M’ on Windows. When the app runs on a real device, simply shake the device. Now, a menu will appear and you need to click on “Debug JS Remotely” to open the Google Chrome debugger. Thereafter, press ‘Command+Option+I’ on Mac or ‘Ctrl+Shift+I’ on Windows to open Developer Tools. You can now use console statements and debug the app. You may view your code by clicking on the Developer Tools Sources tab and open-sourcing the files. From here, you can add breakpoints and easily debug the app using the ‘Chrome DevTools’.
The Developer Menu
The developer menu comes with a plethora of options for the developers to carry out various functions, as given below:
  • Reloading option for reloading the app
  • Enabling Hot Reloading for watching the changes accumulated in a changed file
  • Debugging js remotely for opening a channel to a JS Debugger
  • Enabling Live Reloading for allowing the app to automatically reload when the save button is clicked
  • Toggle Inspector for toggling an inspector interface. It enables the developers to inspect a UI element present on the screen along with its properties. This interface has some other tabs too, which include a tab for performance and for networking that show us the HTTP calls
React Native Debugger
This React Native tool is a stand-alone desktop application that works on Linux, Mac, and Windows and is one of the most recommended debugging tools. It can be integrated with the other two tools- React’s Developer Tools and Redux DevTools, thus giving you the best of both tools. This combination doesn’t require any setup and can be installed quickly with ease. With this combination, react native developers can get some of the best features as below:
  • Profiler: Identify performance issues by getting a flamegraph with components
  • Elements: for examining the styles of the elements, editing them, and instantly viewing the results in the simulator
  • Console: for examining different errors and warning messages
  • Network: for checking and recording network requests
  • Sources: for debugging JS, setting breakpoints, and walking through the code.
  • Memory: for detecting any memory leaks
React Developer Tools
This tool is considered one of the best tools for debugging React Native due to the following reasons.
  • This tool allows the debugging of React components.
  • Its new version allows debugging styles in React Native and also works simultaneously in the developer menu with the inspector. In this version, the developers can debug and employ the style properties and without even reloading the app can instantly view the modifications implemented in the app.
So how do you get started with this tool?
You need to use the desktop app for debugging React Native with this tool. It can be installed locally as well as globally in the project by using the below command- “yarn add react-devtools” or npm- “npm install react-devtools –save”
Now you can start the application by running the command- “yarn react-devtools” which will launch your application.
This open-source desktop app was designed in 2016 by Infinite Red. This tool enables the inspecting of the apps quite effortlessly. It is available for various operating systems like Linux, Mac, and Windows. It offers amazing features like:
  • state tab
  • React Native tab
  • timeline tab for tracking app events and Redux actions
  • connections for running several devices simultaneously and quickly switching debugging
Redux DevTools
Redux DevTools is also a standalone tool and a state container for JS applications. It is meant for both- React Native and React JS. It is used for common state management and allows easy inspection between actions and their reflections on the data store. Redux DevTools allows using redux debug components directly into the applications. This tool comes with several useful features such as Chart, Slider, Inspector showing real-time actions, Dispatcher, State tab, Action tab, Diff tab, Log Monitor, Test tab, Export/import, etc. You can start using this tool by installing the Redux Devtools Extension to the firefox or chrome browser.
React Native CLI
This React native tool is majorly used for developing React Native apps and is also used as a debugging tool at times. React Native CLI helps to access some relevant information about the dependencies and libraries used in the app. This information can be then used for debugging some bugs that take place due to a mismatch of different versions of tools being used for your app development.
Nuclide is an open-source tool and enjoys the support of a strong community. It can be added as a plug-in on top of Atom- a renowned IDE built by Facebook. It offers some outstanding features like auto-complete, jump-to-definition, inline errors, etc. Also, it provides services like Hack development, Remote, and JavaScript development, working sets, built-in debugging, task runner, mercurial support, etc.
So, our blog comes to an end with this.

Final Verdict:

Apart from the tools mentioned above, there are several other React Native debugging tools like Flow, Expo, Ignite, Visual Studio Code, etc. that can be considered by the React Native development services for their projects. It depends on what tool seems right for your project requirement, what your budget and time considerations are, and what your developers are convenient with. You may even go with a combination of some of these tools. And last but not the least, hiring skilled and experienced React Native developers or React native app development company also impacts the debugging process.
We hope this read was insightful!
Do share your knowledge and experiences about other React Native Developer Tools in the comments section.
Here is a detailed list of the top-notch React Native developer tools widely used for serving various purposes like development, debugging, testing, etc. in the React Native development process.
Also, here are some of the UI component libraries used in React Native for building world-class apps.