d3.coffee

numbers = [5, 3, 23, 6, 7, 0, 1, 25, 11, 19, 20]
chartHeight = 300

chart = d3.select("body")
 .append("svg")
 .attr("width", "100%")
 .attr("height", "100%")

bars = chart.selectAll("g.bar").data(numbers).enter()
 .append("g")
 .attr("class", "bar")

bars.append("rect")
 .attr("y", (d) -> chartHeight - d * 10)
 .attr("x", (d, i) -> i * 20)
 .attr("width", 20)
 .attr("height", (d) -> d * 10)

bars.append("line")
 .attr("class", "budget")
 .attr("y1", (d) -> chartHeight - d * 9)
 .attr("y2", (d) -> chartHeight - d * 9)
 .attr("x1", (d, i) -> i * 20)
 .attr("x2", (d, i) -> i * 20 + 20)
 .attr("stroke", (d) -> if d < 20 then "white" else "#aaa")