This is so cool "Map function inside Map function"

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This is so cool "Map function inside Map function"

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Last edited Sep 15, 2022

Created on Feb 25, 2020

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This example produces a dense field of overlapping circles inside an SVG element. It shows how React’s `map` function can be nested to generate a 101x101 grid of points, where each circle’s position, fill color, and stroke are derived from the outer and inner loop indices combined with `Math.random`. The code uses React’s `ReactDOM.render` to place the SVG into the DOM. The resulting composition is a chaotic, colorful scatter of semi-transparent circles with varied strokes, driven purely by the nested mapping logic.

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React Starter code.

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