DEV Community: Bimochan Shrestha

Integration of ESlint, Prettier and Husky

Bimochan Shrestha — Sat, 31 Dec 2022 10:51:38 +0000

To integrate ESlint, Prettier, and husky into your project, you will need to follow these steps:

Install the necessary dependencies:

npm install --save-dev eslint prettier husky

Set up ESlint by creating an .eslintrc configuration file. You can do this either manually or by using the eslint --init command, which will guide you through the process of creating the configuration file.

Set up Prettier by creating a .prettierrc configuration file. This file should contain the Prettier configuration options that you want to use.

Add the following script to your package.json file:

"scripts": {
"precommit": "eslint --fix && prettier --write"
}

This script will run ESlint and Prettier on your code whenever you try to commit changes using git commit.

Configure husky to run the precommit script by adding the following block to your package.json file:

"husky": {
"hooks": {
"pre-commit": "npm run precommit"
}
}

You can now run git commit as usual and ESlint and Prettier will automatically run and fix any issues before the commit is finalized.

Note: If you want to run ESlint and Prettier on all files in your project, you can use the --find-related-files flag, like this:

"scripts": {
"precommit": "eslint --fix --find-related-files && prettier --write --find-related-files"
}

This will scan your project for all files that match the patterns specified in your ESlint and Prettier configuration files and lint and format them.

Code Push Integration And Benefits.

Bimochan Shrestha — Sat, 31 Dec 2022 09:49:51 +0000

Introduction:

Code push is a feature in React Native that allows developers to push code updates directly to users without requiring them to go through the app store update process. This can be especially useful for fixing bugs and making small updates to an app without the need for a lengthy review process.

Integration steps:

Install the code push CLI: You can install the code push CLI by running the following command: npm install -g code-push-cli

Add the code push SDK to your app: You can add the code push SDK to your app by running the following command: npm install --save react-native-code-push

Link the code push library to your app: You will need to link the code push library to your app using the react-native link command.

Set up code push keys for your app: You will need to set up code push keys for your app by running the following command: code-push register. This will generate a deployment key for your app, which you will use to release updates to your app.

Initialize code push in your app: You will need to initialize code push in your app by adding the following code to your app's entry point:

import codePush from "react-native-code-push";

const codePushOptions = {
checkFrequency: codePush.CheckFrequency.ON_APP_RESUME,
installMode: codePush.InstallMode.ON_NEXT_RESUME
};

const App = codePush(codePushOptions)(MyApp);

Benefits of code push:

Quick bug fixes: Code push allows developers to quickly fix bugs and release updates without the need for a lengthy review process. This can save a lot of time and effort, especially if the bug is critical and needs to be fixed as soon as possible.

Improved user experience: By releasing updates quickly, code push helps to improve the user experience by ensuring that users have access to the latest version of the app. This can also help to reduce the number of negative reviews and uninstalls, as users are less likely to encounter bugs and issues with the app.

No need for app store updates: With code push, developers can release updates directly to users without going through the app store update process. This can save a lot of time and effort, as the app store review process can take several days or even weeks to complete.

Easy to use: Code push is easy to use and integrates seamlessly with React Native apps. Developers can use the code push CLI to release updates with just a few simple commands.

Ways to make Android Emulator run faster

Bimochan Shrestha — Wed, 28 Dec 2022 01:05:38 +0000

There are several steps you can take to make an Android emulator run faster in a computer system:

Use a hardware accelerator: Many Android emulators support the use of hardware acceleration, which allows the emulator to take advantage of specialized hardware components in your computers, such as the GPU or CPU, to improve performance. Make sure that hardware acceleration is enabled in your emulator's settings to take advantage of this feature.

Allocate more RAM and CPU resources: By default, an Android emulator is allocated a certain amount of RAM and CPU resources on your computer. You can increase the amount of RAM and CPU resources that are allocated to the emulator by adjusting the emulator's settings. This can help to improve the emulator's performance, especially if you are running multiple applications or if you are using a resource-intensive application.

Use a faster computer: The performance of an Android emulator is also largely dependent on your computer's hardware. If you have an older or slower computer, you may experience the slower performance from the emulator. In this case, upgrading to a faster or more powerful computer can help to improve the emulator's performance.

Use a newer version of the emulator: If you are using an older version of the Android emulator, upgrading to a newer version can also help to improve performance. Newer versions of the emulator are typically optimized to take advantage of the latest hardware and software features, which can result in improved performance.

Use a lightweight Android version: Some Android emulators allow you to choose which version of Android you want to run on the emulator. Using a lightweight version of Android, such as Android Go or Android One, can help improve the emulator's performance, especially if you run the emulator on a slower or older computer.

By following these steps, you should be able to make your Android emulator run faster on your computer system. Keep in mind that the actual performance improvements you see will depend on your specific hardware and software setup, the emulator's requirements, and the applications you are running on it.

Hardware Acceleration

Bimochan Shrestha — Wed, 28 Dec 2022 01:01:50 +0000

Hardware acceleration is a term that refers to the use of specialized hardware to perform certain tasks or functions more efficiently than they could be performed by a general-purpose processor. In the context of a laptop, hardware acceleration can be used to improve the performance of certain software or applications by offloading certain tasks to dedicated hardware components.

One common example of hardware acceleration in a laptop is the use of a graphics processing unit (GPU) to improve the performance of graphics-intensive tasks. Many laptops come equipped with a dedicated GPU, which is specifically designed to handle tasks such as rendering 3D graphics or displaying high-resolution video. By using the GPU to perform these tasks, the laptop's main processor (CPU) can focus on other tasks, leading to an overall improvement in performance.

Hardware acceleration can also be used in other areas of a laptop, such as for audio processing or for tasks related to machine learning and artificial intelligence. For example, some laptops may come with specialized hardware components that are designed to accelerate the performance of machine learning algorithms or to improve the performance of tasks related to natural language processing.

There are a few different ways that you can take advantage of hardware acceleration in your laptop. One way is to use software or applications that are specifically designed to take advantage of hardware acceleration. This might include graphics-intensive software like video editing or 3D modeling applications, or machine learning software that is designed to run on specialized hardware.

Another way to take advantage of hardware acceleration is to make sure that your laptop's hardware is being used to its full potential. This might involve adjusting your laptop's settings or configuring the software you are using to take advantage of the available hardware resources.

In summary, hardware acceleration is a technology that is used to improve the performance of certain tasks or functions by offloading them to specialized hardware components. By taking advantage of hardware acceleration in your laptop, you can improve the performance of graphics-intensive tasks, machine learning algorithms, and more.

Emulator Vs Simulator

Bimochan Shrestha — Wed, 28 Dec 2022 00:51:38 +0000

Emulators and simulators are both types of software that are used to mimic the behavior and functionality of a particular system or device. However, some key differences between the two make them suited to different use cases. In this blog, we'll take a closer look at emulators and simulators, what they are used for, and the differences between them.

An emulator is a piece of software that allows one computer system, called the host, to mimic the functionality of another computer system, called the guest. Emulators are often used to run software or games that were designed for a different type of computer or operating system on a host machine that is not compatible with the original software. For example, an emulator might be used to run a game that was designed for a gaming console on a personal computer.

One of the key benefits of using an emulator is that it allows users to access and use software or games that would otherwise not be compatible with their current system. This can be especially useful for people who want to use older software or games that are no longer supported by the manufacturer or are not available on modern platforms.

Simulators, on the other hand, are designed to mimic the behavior and functionality of a particular system or device, but they do not aim to replicate the exact functionality of the original system. Instead, simulators are used to model and simulate the behavior of a particular system or device in a controlled environment. This allows users to test and experiment with different scenarios and configurations without the need for actual hardware.

Simulators are often used in a variety of fields, including aviation, military training, and engineering, to test and evaluate different scenarios and configurations. For example, an aviation simulator might be used to train pilots in different flight conditions, while a military simulator might be used to test the effectiveness of different tactics and strategies.

In summary, emulators and simulators are both types of software that are used to mimic the behavior and functionality of a particular system or device. However, emulators are used to replicating the exact functionality of a different system, while simulators are used to model and simulate the behavior of a particular system or device in a controlled environment. Both emulators and simulators can be useful tools, but they are suited to different use cases and applications.

Native VS Native Cross-Platform Apps

Bimochan Shrestha — Thu, 22 Dec 2022 13:26:44 +0000

Introduction

When it comes to building mobile apps, developers have two main options: native apps and cross-platform native apps. Both options have their own set of benefits and drawbacks, and the right choice for your project will depend on your specific needs and goals.

Native Apps

Native apps are built specifically for a particular operating system, such as Android or iOS. They are typically written in a programming language native to the operating system, such as Java or Swift.

One of the main benefits of native apps is their performance. Because they are built specifically for a particular operating system, they can take advantage of all the features and capabilities of the device, resulting in a smooth and responsive user experience.

Another benefit of native apps is their ability to access the full range of device features, such as the camera, GPS, and push notifications. This can be especially important for certain types of apps, such as those that rely on location tracking or real-time data.

However, there are also some drawbacks to native apps. One of the main drawbacks is the cost and time required to build and maintain separate versions for each operating system. This can be especially challenging for small teams or organizations with limited resources.

Cross-Platform Native Apps

Cross-platform native apps, also known as hybrid apps, are built to run on multiple operating systems using a single codebase. This can be achieved through the use of frameworks such as React Native or Flutter.

One of the main benefits of cross-platform native apps is their cost and time efficiency. Because they use a single codebase, developers only need to build and maintain a single version of the app, rather than separate versions for each operating system. This can be especially beneficial for small teams or organizations with limited resources.

Another benefit of cross-platform native apps is their ability to reach a wider audience. Because they can run on multiple operating systems, they can be used by a larger number of users than native apps that are built for a specific operating system.

However, there are also some drawbacks to cross-platform native apps. One of the main drawbacks is their performance, which may not be as smooth and responsive as native apps. This is because they rely on a "wrapper" to run on multiple operating systems, which can result in slower performance compared to native apps.

Conclusion

In summary, native apps and cross-platform native apps are both viable options for building mobile apps, but they are designed for different purposes. Native apps are best suited for projects that require high performance and access to a wide range of device features, while cross-platform native apps are best suited for projects that require cost and time efficiency and the ability to reach a wider audience. The right choice for your project will depend on your specific needs and goals.

React VS React Native

Bimochan Shrestha — Thu, 22 Dec 2022 13:20:37 +0000

Introduction

React and React Native are two popular technologies for building web and mobile applications, respectively. Both technologies are developed by Facebook and are based on the same core principles, but there are some key differences to consider when deciding which one to use for your project.

What is React?
React is a JavaScript library for building user interfaces. It was first released in 2013 and has since become one of the most popular tools for building web applications. React allows developers to create reusable UI components, which can be combined to build complex and dynamic user interfaces.

One of the key benefits of React is its ability to efficiently update the UI in response to data changes. This is made possible through a technique called "virtual DOM" (Document Object Model), which allows React to calculate the minimum number of changes needed to update the UI based on the new data. This results in a smooth and fast user experience, as the UI is only updated when necessary.

React is also highly extensible, with a large number of third-party libraries and tools available to help developers build and test their applications.

What is React Native?

React Native is a mobile app development framework that allows developers to build native apps for Android and iOS using the same principles and techniques as React. It was first released in 2015 and has since become a popular choice for building mobile apps, as it allows developers to reuse their existing React skills and knowledge to build native apps.

Like React, React Native uses a virtual DOM to efficiently update the UI. It also has a rich ecosystem of third-party libraries and tools that make it easy to build, test, and deploy mobile apps.

One of the key differences between React and React Native is that the latter compiles to native code (i.e., code that can run directly on the device), whereas React is run in a web browser. This means that React Native apps have the performance and look and feel of native apps, rather than web apps.

When to use React vs. React Native

So, which technology should you choose for your project? Here are a few things to consider:

If you're building a web application, you should use React. It's the best choice for building modern and interactive web UIs, and it has a large and active community of developers and third-party libraries.

If you're building a mobile app, you should consider React Native. It allows you to build native apps for both Android and iOS using the same codebase, and it has a rich ecosystem of tools and libraries to help you build, test, and deploy your app.

If you're building a cross-platform app (i.e., an app that runs on both web and mobile), you may want to consider using a tool like React Native Web, which allows you to build a single app that runs on both web and mobile using the same codebase.

Conclusion

In summary, React and React Native are both powerful technologies for building modern and interactive user interfaces, but they are designed for different platforms. React is best suited for web applications, while React Native is best suited for mobile apps. If you're building a cross-platform app, you may want to consider using a tool like React Native Web.

TypeScript VS JavaScript

Bimochan Shrestha — Thu, 22 Dec 2022 12:53:45 +0000

Introduction

As a developer, you have probably heard of both JavaScript and TypeScript. But what's the difference between the two, and which one is right for your project? In this blog post, we'll take a closer look at the key differences between JavaScript and TypeScript and explore the pros and cons of each language.

What is JavaScript?

JavaScript is a programming language that is widely used on the web. It is used to add interactivity and functionality to websites, such as creating drop-down menus, form validation, and handling events like clicks and hover effects. JavaScript is a client-side language, meaning that it is executed by the user's web browser, rather than on the server.

What is TypeScript?

TypeScript is a programming language that is a superset of JavaScript, meaning that it includes all of the features of JavaScript and adds some additional ones. One of the main features of TypeScript is static typing, which allows you to specify the data type of a variable when you declare it. This can help catch errors in your code before you run it, as the type system can detect problems when you try to use a variable in a way that is not compatible with its type.

TypeScript also has improved support for object-oriented programming concepts, such as classes and interfaces, which can make it easier to write modular, reusable code.

Javascript was first conceived as a client-side language. But it was also used as a server-side later on.
Using it in the backend makes the code complex and full of bugs. Because of this reason Typescript was introduced.

Pros and Cons of JavaScript

Pros:

Widely used and supported: JavaScript is the most popular programming language on the web, so it is well-known and well-documented, with a large community of developers who can help answer questions and provide support.

Versatility: JavaScript can be used to build a wide variety of applications, from simple websites to complex web applications and even mobile apps.

Easy to learn: JavaScript is a relatively easy language to learn, especially for developers who are familiar with other programming languages.

Interoperability:Javascript can easily communicate with web building tools like HTML and CSS.

Cons:

Lack of type safety: Because JavaScript is a dynamically-typed language, it can be easy to make mistakes when using variables and functions. This can lead to runtime errors that can be difficult to debug.

Poor scaling: As a codebase grows, it can become difficult to maintain and understand without a clear structure. This can be especially challenging in JavaScript, as it does not have strong support for object-oriented programming concepts.

Permissive nature:Javascript is often described as a laid-back language that can cause different problems for programmers using it. Debugging can be particularly hard because of this.

Pros and Cons of TypeScript

Pros:

Improved type safety: The static typing system in TypeScript can help catch errors in your code before you run it, saving you time debugging and making it easier to spot problems early on.

Better scaling: The improved support for object-oriented programming concepts in TypeScript can make it easier to write modular, reusable code, which can make it easier to maintain and scale a large codebase.

Compatibility: Because TypeScript is a superset of JavaScript, any valid JavaScript code is also valid TypeScript code. This means that you can gradually introduce TypeScript into your project without having to completely rewrite your codebase.

**Increased team performance :*Typescript can eliminate a lot of bugs during the building process itself. This contributes to the increased performance of programmers.

Cons:

Requires learning a new language:If you are already familiar with JavaScript, you will need to learn the additional features of TypeScript before you can use it effectively.

May not be necessary for all projects: Depending on the size and complexity of your project, the additional features of TypeScript may not be worth the effort to learn and use.

Overly Complicated typing system:Typescript has an overly complicated typing system that can seem hard to learn especially to those programmers who don't have any background in statically typed languages like java,c++, etc.

False sense of security:Typescript checks types only during compilation. It is compiled to javascript which doesn't have type security. So typescript in a way creates a false sense of security because there can be type-related bugs even when we create an application in typescript.

Conclusion

Javascript and Typescript are both industry favorite technologies used to create mobile and web apps. Both are reliable tools and have a good future ahead.