Selection Join

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Selection Join

✓ Published0🌍 Public

Last edited Nov 19, 2019

Created on Nov 19, 2019

Forked from Let's make a face with D3.js!

This example demonstrates D3’s selection join by rendering a row of red circles that appear and disappear as users click the “Add Data” and “Remove Data” buttons. The circles are generated from a small array of fruit objects, which the buttons mutate by pushing or popping elements before re-rendering. The code uses `selectAll` with `data` and the `join` method to bind the array to SVG circle elements, updating positions via `attr`. It relies on `d3.select` and `d3.range`, with SVG output. The color is overridden to none, leaving black-outlined circles.

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Demonstrates fundamental DOM manipulation using D3.js by making a smiley face whose eyebrows move.

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