Note: I tried testing ChatGPT to produce more complex code! But this one failed miserably. Read on.


Rendering a Sankey diagram in React using SVG can be a complex task as it involves creating paths and managing node positions. There are libraries available that simplify the process, such as react-sankey or d3-sankey. However, if you prefer to implement it manually, here’s an example code snippet to get you started:

import React from 'react';

const SankeyDiagram = ({ data, width, height }) ={
  const { nodes, links } = data;

  const nodeWidth = 20;
  const nodePadding = 8;

  const maxLinkValue = Math.max(...links.map(link
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To render a pie chart in React using SVG, you can create a reusable component that takes data as input and generates the SVG elements accordingly. Here’s an example code snippet that demonstrates how to do this:

import React from 'react';

const PieChart = ({ data, width, height }) ={
  const total = data.reduce((sum, { value }) =sum + value, 0);
  const center = width / 2;
  const radius = Math.min(width,
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To render a line chart in React using SVG, you can create a reusable component that takes data as input and generates the SVG elements accordingly. Here’s an example code snippet that demonstrates how to do this:

import React from 'react';

const LineChart = ({ data, width, height, lineColor }) ={
  const maxValue = Math.max(...data);
  const xScale = width / (data.length
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To render a bar chart in React using SVG, you can create a reusable component that takes data as input and generates the SVG elements accordingly. Here’s an example code snippet that demonstrates how to do this:

import React from 'react';

const BarChart = ({ data, width, height, barColor }) ={
  const barWidth = width / data.length;
  const maxValue = Math.max(...data);
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Setting up unit testing in a React app involves several steps. Here’s a general guide to help you get started:

Step 1: Install the necessary dependencies

You’ll need to install the testing libraries and tools required for unit testing in React. The most common ones are Jest and React Testing Library.

npm install --save-dev jest @testing-library/react

Step 2: Create the test files

Create a folder called __tests__ in your source code directory (usually the same level as the src folder).…

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To use Redux in a React app with Redux Toolkit, you can follow these steps:

  1. Install Redux Toolkit: Start by installing Redux Toolkit using npm or yarn. Open your terminal and run the following command:
npm install @reduxjs/toolkit

2. Set up your Redux store: Create a file called store.js (or any other name you prefer) in your project’s directory. In this file, import the necessary Redux Toolkit functions and create your Redux store.…

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NextJS is the framework for building production React apps. Its main selling point is its ability to pre-render pages. If you do a “View page source” on a React app built with create-react-app (CRA), you will see an almost empty body. There will only be a div element into which JavaScript renders all content on the client-side. This is great for building admin pages or internal apps but not so great for building content websites that the search engines crawl.…

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React Testing Library makes functional testing of React components easier. It provides a virtual DOM where we can render components, provides methods to query the DOM for various elements, interact with those elements and make assertions on them. The objective of this post is to serve as a one-stop reference material for the most commonly used code patterns related to React testing library.…

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