d3 javascript alternate colors on click

Question

I\'m just starting playing around with d3, and was wondering how you could alternate the colors of a element upon clicking it.

This fiddle changes the color of the

Answer 1

This also worked, albeit in a jankier fashion. . .

var PointColors = ['white', 'magenta']
var sampleSVG = d3.select("#viz")
    .append("svg")
    .attr("width", 100)
    .attr("height", 100);    

sampleSVG.append("circle")
    .style("stroke", "gray")
    .style("fill", "white")
    .attr("r", 40)
    .attr("cx", 50)
    .attr("cy", 50)
    .on("click", function(){
        PointColors = [PointColors[1], PointColors[0]]
        d3.select(this).style("fill", PointColors[0]);});