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[UNLISTED] Using Merge
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<!DOCTYPE html> <html> <head> <title>Using Merge</title> <script src="https://d3js.org/d3.v4.min.js"></script> </head> <body> <svg width="960" height="500"></svg> <script> var svg = d3.select("svg"); function render(data){ var circles = svg .selectAll("circle").data(data); circles .enter().append("circle") .attr("cy", 250) .attr("r", 100) .merge(circles) .attr("cx", function (d){ return d; }); circles.exit().remove(); } setTimeout(function (){ render([300, 500, 700]); }, 1000); setTimeout(function (){ render([350, 600]); }, 2000); </script> </body> </html>
https://d3js.org/d3.v4.min.js