Enter append etc

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Enter append etc

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Last edited Jun 15, 2016

Created on Jun 15, 2016

Two interactive rectangles act as buttons for updating a data-driven circle chart in D3.js. The example demonstrates the enter and append pattern, where clicking `rect1` replaces the dataset with a new array of three values, and clicking `rect2` adds two additional circles. Initially, three circles are rendered with radii proportional to the square root of the data values. The code uses `d3.selectAll("circle").data()` and `.enter().append()` to create new SVG circle elements, with transitions animating the radius updates.

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