Forem: Avinash Kumar

Npm vs Yarn: What Should you use for managing packages in React?

Avinash Kumar — Sat, 11 Feb 2023 11:17:58 +0000

Both npm (Node Package Manager) and Yarn are popular package managers for JavaScript projects, including React. The choice between npm and Yarn comes down to personal preference, but here are a few key differences to consider:

Performance: Yarn was designed to be faster than npm, and in most cases, it is. Yarn caches packages locally on your machine, so if you need to install the same packages multiple times, the process will be faster with Yarn.
Consistency: Yarn uses a lockfile to ensure that your dependencies are installed consistently across all your development machines and in production. This makes it easier to ensure that your application works the same way in different environments.
Security: Yarn was built with security in mind, and it has a few features to help you keep your dependencies secure. For example, Yarn scans packages for known vulnerabilities and alerts you if there are any.
Compatibility: npm is the default package manager for Node.js and has a much larger user base, so it has better compatibility with the packages you may need for your project.

In conclusion, both npm and Yarn have their strengths and weaknesses, and both can be used effectively to manage packages in React projects. If performance is your top priority, Yarn may be the way to go, but if compatibility is more important, npm is a safe bet.

Some Very Cool (Underrated maybe) React Libraries

Avinash Kumar — Wed, 08 Feb 2023 11:08:37 +0000

Some of the very cool React Libraries which you can use in your next project:

React Spring: This library provides an easy-to-use set of animations and transitions for React. It has a simple API, yet it is incredibly powerful and allows for creating dynamic, smooth animations with minimal code. https://www.react-spring.io/

import { useSpring, animated } from 'react-spring'
const ExampleComponent = () => {
  const props = useSpring({
    from: { opacity: 0 },
    to: { opacity: 1 },
  })
  return (
    <animated.div style={props}>
      Hello, World!
    </animated.div>
  )
}

React Loadable: This library makes it easy to split your React code into smaller, lazy-loaded chunks that can be loaded on demand. This can significantly improve the initial loading time of your application, especially for large and complex apps. https://github.com/jamiebuilds/react-loadable

import Loadable from 'react-loadable'

const LoadableComponent = Loadable({
  loader: () => import('./MyComponent'),
  loading: () => <div>Loading...</div>,
})

const ExampleComponent = () => (
  <LoadableComponent />
)

React Router: This library provides routing capabilities for React applications. It offers a simple and flexible API, with features like lazy loading, dynamic routes, and support for mobile devices. https://github.com/ReactTraining/react-router

import { BrowserRouter as Router, Route, Link } from 'react-router-dom'

const Home = () => <h2>Home</h2>
const About = () => <h2>About</h2>
const Contact = () => <h2>Contact</h2>

const ExampleComponent = () => (
  <Router>
    <nav>
      <ul>
        <li>
          <Link to="/">Home</Link>
        </li>
        <li>
          <Link to="/about">About</Link>
        </li>
        <li>
          <Link to="/contact">Contact</Link>
        </li>
      </ul>
    </nav>
    <Route exact path="/" component={Home} />
    <Route path="/about" component={About} />
    <Route path="/contact" component={Contact} />
  </Router>
)

React Testing Library: This library provides simple and complete React DOM testing utilities that encourage good testing practices. It helps you write tests that are more focused on the behavior of your components rather than the implementation details. https://github.com/testing-library/react-testing-library

import { render, screen } from '@testing-library/react'
import ExampleComponent from './ExampleComponent'

test('renders greeting', () => {
  render(<ExampleComponent />)
  const greeting = screen.getByText(/Hello, World!/i)
  expect(greeting).toBeInTheDocument()
})

React Query: This library makes it easy to manage data in your React applications, from fetching to caching and updating data. It offers a simple, powerful, and flexible API for handling data and keeping your UI in sync with your data. https://github.com/tannerlinsley/react-query

import { useQuery } from 'react-query'

const fetchData = async () => {
  const response = await fetch('https://api.example.com/data')
  return response.json()
}

const ExampleComponent = () => {
  const { data, status } = useQuery('data', fetchData)

  if (status === 'loading') {
    return <div>Loading...</div>
  }

  if (status === 'error') {
    return <div>Error: {error.message}</div>
  }

  return (
    <ul>
      {data.map(item => (
        <li key={item.id}>{item.name}</li>
      ))}
    </ul>
  )
}

I hope you like the selection of libraries. These are just a few of the many React libraries out there. Give them a try and see how they can improve your React development experience.

General overcoming Procrastination Tips!

Avinash Kumar — Fri, 03 Feb 2023 08:44:08 +0000

Getting over procrastination can be a challenge, but here are a few tips that can help:

Make a plan: Break your task into smaller, manageable steps and create a timeline to follow.

Set clear goals: Identify what you want to achieve and the steps you need to take to get there. This will give you a sense of direction and motivation.

Eliminate distractions: Turn off notifications, find a quiet place to work, and limit your exposure to distractions as much as possible.

Use accountability: Find an accountability partner or join a group where you can be held accountable for making progress on your goals.

Reward yourself: Set up a reward system for when you reach certain milestones. This will give you an added incentive to stay focused and motivated.

Take breaks: It's important to take breaks to avoid burnout, but make sure to schedule them so that they don't become another form of procrastination.

Practice mindfulness: Being mindful of the present moment can help you stay focused and avoid getting distracted.

Remember, it's also important to avoid overworking yourself. Prioritize self-care and set boundaries to ensure that you're working efficiently, but not at the cost of your well-being.

How to get into React Native?

Avinash Kumar — Sun, 29 Jan 2023 04:31:48 +0000

To get started with React Native, you should first have a solid understanding of React and JavaScript. Here are the basic steps to getting started with React Native:

Install the React Native CLI (Command Line Interface) by running npm install -g react-native-cli
Create a new project by running react-native init MyProject
Run the project on an emulator or device by running react-native run-ios or react-native run-android
Begin developing your app by editing the files in the src directory of your project
Use React Native's built-in components, such as View, Text, and Image, to build your user interface
Utilize React Native's APIs, such as Fetch and AsyncStorage, to access device functionality and data

A simple Calculator Program:

import React, { useState } from 'react';
import { View, Text, Button } from 'react-native';

const Calculator = () => {
    const [input, setInput] = useState('');
    const [result, setResult] = useState('');

    const handleButtonPress = (val) => {
        setInput(input + val);
    }

    const handleClearPress = () => {
        setInput('');
        setResult('');
    }

    const handleEqualPress = () => {
        setResult(eval(input));
    }

    return (
        <View>
            <Text>{input}</Text>
            <Text>{result}</Text>
            <View>
                <Button title="1" onPress={() => handleButtonPress(1)} />
                <Button title="2" onPress={() => handleButtonPress(2)} />
                <Button title="3" onPress={() => handleButtonPress(3)} />
                <Button title="+" onPress={() => handleButtonPress('+')} />
            </View>
            <View>
                <Button title="4" onPress={() => handleButtonPress(4)} />
                <Button title="5" onPress={() => handleButtonPress(5)} />
                <Button title="6" onPress={() => handleButtonPress(6)} />
                <Button title="-" onPress={() => handleButtonPress('-')} />
            </View>
            <View>
                <Button title="7" onPress={() => handleButtonPress(7)} />
                <Button title="8" onPress={() => handleButtonPress(8)} />
                <Button title="9" onPress={() => handleButtonPress(9)} />
                <Button title="*" onPress={() => handleButtonPress('*')} />
            </View>
            <View>
                <Button title="." onPress={() => handleButtonPress('.')} />
                <Button title="0" onPress={() => handleButtonPress(0)} />
                <Button title="C" onPress={handleClearPress} />
                <Button title="/" onPress={() => handleButtonPress('/')} />
            </View>
            <View>
                <Button title="=" onPress={handleEqualPress} />
            </View>
        </View>
    );
}

export default Calculator;

CSS vs SASS!

Avinash Kumar — Tue, 24 Jan 2023 12:47:06 +0000

When it comes to styling web pages, there are a few different options to choose from. One of the most popular is CSS (Cascading Style Sheets), but another option that's gained traction in recent years is SASS (Syntactically Awesome Style Sheets). In this post, we'll take a closer look at the differences between these two styling options and help you decide which one might be the best fit for your next project.

First, let's talk about CSS. CSS is a stylesheet language used for describing the presentation of a document written in a markup language, like HTML. It's used to apply styles such as colors, fonts, and layouts to web pages. CSS is a widely-used and well-supported option, and it's the standard for styling web pages. It's simple to learn, and there are a wide variety of resources available online to help you get started.

While CSS is a great option, it can become cumbersome as the size and complexity of your project increases. This is where SASS comes in. SASS is a preprocessor for CSS that adds features such as variables, nested rules, and mixins (reusable blocks of styles). These additional features make SASS a more efficient and organized option for styling large and complex projects.

One of the biggest advantages of SASS is its use of variables. With CSS, if you want to use the same color or font throughout your website, you'll need to use the same value repeatedly. With SASS, you can define a variable for that value and use it throughout your stylesheet, making it much easier to make global changes.

Another advantage of SASS is its use of nested rules. In CSS, you need to repeat the parent element for each child element you want to style. With SASS, you can nest child elements within their parent elements, making your stylesheet more readable and easier to maintain.

Mixins are another powerful feature of SASS. They allow you to define a block of styles that can be reused throughout your stylesheet. This can save you a lot of time and effort when you need to apply the same styles to multiple elements.

Once you've written your SASS code, it needs to be compiled into standard CSS before it can be applied to your web page. This might sound like an extra step, but it's actually quite simple to set up, and there are many tools available that make the process even easier.

In summary, CSS is a popular and well-supported option for styling web pages. It's simple to learn and use, but it can become cumbersome for large and complex projects. SASS is a preprocessor for CSS that adds features such as variables, nested rules, and mixins, making it a more efficient and organized option for styling large and complex projects. Ultimately, the choice between CSS and SASS will depend on the size and complexity of your project, as well as your personal preferences.

Python vs C++ : What should You take up in 2023 !

Avinash Kumar — Fri, 20 Jan 2023 16:50:03 +0000

In the realm of programming languages, the age-old debate between Python and C++ rages on. Both languages have their own unique advantages and disadvantages, and the choice between them is ultimately a matter of one's specific needs and goals.

Python, a high-level, interpreted language, is widely renowned for its simplicity and ease of use. Its large and active community, along with a plethora of libraries and frameworks, make it a popular choice for data science, machine learning, and web development. Its simple syntax and readability make it an excellent choice for beginners, who are just beginning to explore the world of programming.

On the other hand, C++, a powerful, low-level language, is widely used in a plethora of applications, including game development, virtual reality, and high-performance computing. Its ability to provide fine-grained control over memory allocation and other low-level operations make it a choice of many experts and professionals.

In 2023, both Python and C++ will continue to evolve and adapt to the ever-changing landscape of technology. If you are a beginner looking to explore the world of programming, Python may be the better choice for you. But, if you are a professional or an expert looking for a language that can provide you with fine-grained control over low-level operations, C++ may be the way to go. Ultimately, the choice between the two is a matter of one's specific needs and goals, and both languages have their own unique advantages and disadvantages.

What would you choose?

VS Code vs Atom!

Avinash Kumar — Tue, 17 Jan 2023 05:18:23 +0000

Both Visual Studio Code (VS Code) and Atom are popular text editors that are widely used by developers. The choice between the two will depend on your specific needs and preferences. Here are some key differences between the two:

VS Code is developed and maintained by Microsoft, while Atom is developed and maintained by GitHub.

VS Code has a slightly larger user base and is considered to be more popular among developers.

VS Code has better performance and is considered to be more stable than Atom.

VS Code has built-in support for debugging and integrated development environments (IDE) features.

Atom is more customizable and has a larger number of available packages and themes.

Atom has a simpler user interface which is considered to be less cluttered than VS Code.

VS Code has better support for TypeScript and has a more robust extension ecosystem.

Ultimately, the choice between VS Code and Atom will depend on your personal preferences and the specific needs of your project. You can try both and see which one works best for you and your workflow.

PS-I started with Atom because it was simpler, Now I use
Visual Studio Code for all my projects.

Ether.js Overview!

Avinash Kumar — Sun, 15 Jan 2023 10:22:48 +0000

Here's a quick rundown of what Ether.js is and what it is used for :-

Ether.js is a JavaScript library for interacting with the Ethereum blockchain. It allows developers to easily interact with smart contracts and manage transactions on the Ethereum network.
One of the key features of Ether.js is its simplicity. The library abstracts away the complexities of working with Ethereum, making it easy for developers to get started with blockchain development. This is achieved through a simple, intuitive API that is easy to use and understand.
Another important aspect of Ether.js is its flexibility. It can be used in a variety of different environments, including browser-based dApps, server-side applications, and command-line tools. This makes it a versatile choice for any developer looking to work with the Ethereum blockchain.
Ether.js also has built-in support for Web3.js, which is the most popular JavaScript library for interacting with the Ethereum blockchain. This means that developers can use Ether.js to easily interact with smart contracts written in Solidity, the most popular programming language for Ethereum.
In addition, Ether.js has a number of useful features such as built-in support for handling contract events, support for sending signed transactions, and more. This makes it a powerful tool for any developer looking to work with the Ethereum blockchain.
Overall, Ether.js is a great choice for developers looking to work with the Ethereum blockchain. Its simplicity, flexibility, and built-in support for Web3.js make it a powerful and easy-to-use tool for any developer.

Hope it helps!

Some Websites for hosting and fetching JSON

Avinash Kumar — Fri, 13 Jan 2023 02:38:47 +0000

There are several ways to host JSON data for free and here are the ones which are commonly used:

GitHub: You can create a GitHub repository and push your JSON data to it. You can then access the data using the GitHub API.
Firebase: Firebase offers a free plan that allows you to store and retrieve JSON data. You can access the data using the Firebase Realtime Database API.
JSONbin: JSONbin is a free service that allows you to store and retrieve JSON data. You can access the data using the JSONbin API.
Myjson: Myjson is a free and simple service for storing JSON data. You can create, read, update and delete JSON data with simple HTTP requests and easily share it with others.
Once you have hosted your JSON data, you can fetch it by making an HTTP request to the URL where it is hosted. If you are using an API, you will need to read the documentation for that API to learn how to make requests to it.

In general, you will need to use a programming language like Python, JavaScript, or Java to fetch the JSON data, as it can't be fetched by simply visiting the URL, you will need to make a GET request to that URL to fetch the data.

You can use the libraries like axios, fetch, request etc in javascript or python to fetch the json from the url.

How to use Node JS with your Project?

Avinash Kumar — Wed, 11 Jan 2023 13:38:45 +0000

To use Node.js in a project, you will first need to install Node.js on your computer. You can download the installer for your operating system from the official Node.js website (https://nodejs.org/en/download/). Once Node.js is installed, you can use it to run JavaScript code outside of a web browser.

Here is an example of a simple Node.js script that logs "Hello, World!" to the console:

console.log("Hello, World!");

You can run this script by saving it to a file with a .js extension, such as hello.js, and then running it from the command line with the node command:

node hello.js

This will output "Hello, World!" to the console.

To use Node.js in a larger project, you will typically organize your code into modules, and use require and exports to include and share code between files.

For example, you can create a file add.js that exports a function:

//add.js
const add = (a, b) => a + b;
module.exports = add;

And then you can include that module in another file and use the exported function

//app.js
const add = require('./add');
console.log(add(1,2)) //3

You can run it via command line as well

node app.js

This is just a very very very basic example of how to use Node.js in a project, but it should give you an idea of how to get started. As your project grows in complexity, you may want to use a framework such as Express.js to help organize your code, or a package manager such as npm or yarn to manage dependencies.

Best of luck!!

Is it worth Switching to Mint OS from windows?

Avinash Kumar — Sun, 08 Jan 2023 12:51:59 +0000

Mint is a popular Linux-based operating system that is based on the Ubuntu distribution. It is known for its ease of use, stability, and wide range of software available in its repository. If you are considering switching to Mint from Windows, there are a few things you should consider:

Compatibility with your hardware: Most hardware is compatible with Linux, but it is always a good idea to check if all of your hardware is supported before making the switch.
Available software: While Mint has a wide range of software available in its repository, there may be some specific programs that you use that are not available on Linux. If you rely on a specific piece of software that is not available on Linux, it may not be practical to switch.
Learning curve: Mint is a very user-friendly operating system, but it is still different from Windows. If you are new to Linux, you may need to spend some time learning how to use it.

Overall, switching to Mint can be a good decision if you are looking for a stable, user-friendly operating system and are willing to spend some time learning how to use it. However, if you rely on specific software that is not available on Linux or are not comfortable with the idea of learning a new operating system, it may not be the best choice for you.

Some Common SQL commands!

Avinash Kumar — Fri, 06 Jan 2023 14:01:16 +0000

SQL (Structured Query Language) is a programming language used to manage and manipulate data stored in relational database management systems (RDBMS). It is a standard language used to perform various operations on databases, such as creating new tables, inserting data, updating data, and deleting data.

In this blog, we will discuss some of the most common SQL commands that are used to manage and manipulate data in a database.

SELECT
The SELECT command is used to retrieve data from a database. It allows you to specify the columns that you want to retrieve, as well as the rows that meet certain criteria.

For example, the following SQL statement retrieves all the rows from the "Customers" table, and displays the "CustomerName" and "City" columns:

SELECT CustomerName, City FROM Customers;

You can also use the WHERE clause to specify criteria for selecting rows. For example, the following SQL statement retrieves all the rows from the "Customers" table where the "Country" is "Germany":

SELECT * FROM Customers WHERE Country='Germany';

UPDATE
The UPDATE command is used to modify data in a database. It allows you to change the values of specific columns in a table.

For example, the following SQL statement updates the "Address" and "City" columns in the "Customers" table for the customer with the "CustomerID" of 1:

UPDATE Customers
SET Address='Tverskoy Boulevard, 32', City='Moscow'
WHERE CustomerID=1;

DELETE

The DELETE command is used to delete data from a database. It allows you to remove specific rows or all rows from a table.
For example, the following SQL statement deletes the row with the "CustomerID" of 4 from the "Customers" table:

DELETE FROM Customers WHERE CustomerID=4;

If you want to delete all rows from a table, you can use the TRUNCATE TABLE command. For example:

TRUNCATE TABLE Customers;

INSERT INTO

The INSERT INTO command is used to insert new data into a database. It allows you to add one or more rows to a table.

For example, the following SQL statement inserts a new row into the "Customers" table:

INSERT INTO Customers (CustomerName, ContactName, Address, City, PostalCode, Country)
VALUES ('Cardinal', 'Tom B. Erichsen', 'Skagen 21', 'Stavanger', '4006', 'Norway');

CREATE DATABASE

The CREATE DATABASE command is used to create a new database.

For example, the following SQL statement creates a new database called "MyDatabase":

CREATE DATABASE MyDatabase;

ALTER DATABASE

The ALTER DATABASE command is used to modify a database. It allows you to change the name of a database, as well as other characteristics such as the file location and the maximum size.

For example, the following SQL statement changes the name of the "MyDatabase" database to "NewDatabase":

ALTER DATABASE MyDatabase
MODIFY NAME = NewDatabase;