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July 22, 2024 1 min read

Building Interactive Charts with D3.js and React

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Step-by-step tutorial on integrating D3.js with React for data visualizations that don't fight the virtual DOM.

D3 and React both want to control the DOM. The solution is to let D3 handle calculations (scales, paths, layouts) while React handles rendering.

Step 1: Setup

Install d3-scale, d3-shape, d3-array - the calculation modules. Skip d3-selection since React handles DOM manipulation.

Step 2: Create Scales

Use useMemo to create D3 scales from your data. Scales transform data values to pixel coordinates.

Step 3: Render with React

Map your data to SVG elements. Use D3 scales to compute positions. React re-renders when data changes, D3 recalculates coordinates.