1. Install both the libraries in your local environment. You can use npm or yarn for this.
\`\`\` npm install react react-dom npm install d3 \`\`\`1. Import D3 in your React component where you want to use it.
\`\`\` import \* as d3 from ‘d3’; \`\`\`1. Instead of manipulating the DOM directly like D3 usually does, you should consider generating data in the componentDidMount lifecycle method and render it using React. To have a consistent and predictable behavior, you should avoid mixing up React and D3 in manipulating the DOM.
Here is an example to demonstrate how to use D3 inside a React component.
```
import React, { Component } from ‘react’;
import * as d3 from ‘d3’;
class Chart extends Component { componentDidMount() { this.drawChart(); }
drawChart() { const data = [12, 5, 6, 6, 9, 10]; const svg = d3.select(“body”) .append(“svg”) .attr(“width”, 700) .attr(“height”, 300) .style(“margin-left”, 100); svg.selectAll(“rect”) .data(data) .enter() .append(“rect”) .attr(“x”, (d, i) => i * 70) .attr(“y”, (d, i) => 300 – 10 * d) .attr(“width”, 65) .attr(“height”, (d, i) => d * 10) .attr(“fill”, “green”) } render(){ return } }export default Chart;
```
In this example, first, data is appended to “svg” using D3 data method. Then for each data an “rect” svg element is created to create the bar chart.
Please note that normally it’s best to avoid direct DOM manipulation when working with React. This approach is more about just using D3 for its math functions and using those to render anything you want, such as SVG elements through React.
Also, there are libraries like react-faux-dom that allow D3 to manipulate a fake DOM in order to use D3’s complex utilities and then render them via React.
