Getting error on applying transition in d3

Question

I am trying to apply some transition effect on bar graph i designed in d3. Here is my code-

svg.selectAll(".bar")
            .data(data)
            .enter().append("g")
            .attr("class", "bar")
            .append("rect")
            .attr("rx", barRadius)
            .attr("fill","333" )
            // .attr("color_value", "steelblue")
            .attr("index_value", function(d, i) {
                return "index-" + d[columns[0]].replace(/[^a-zA-Z0-9]/g, '', 'gi');
            })
            .attr("class", function(d, i) {
                return "bars-Bubble-index-" + d[columns[0]].replace(/[^a-zA-Z0-9]/g, '', 'gi')+div;
            })
            .attr("id", function(d) {
                return d[columns[0]] + ":" + d[measure1];
            })
            .attr("onclick", fun)
            .attr("x", function(d) {
                return x(d[columns[0]]);
            })
            .attr("width",0)
            .transition()
            .duration(2000)//1 second
            .attr("width", x.rangeBand())
            .attr("y", function(d) {
                return y(d[measure1]);
            })
            .attr("height", function(d) {
                return height - y(d[measure1]);
            })

Transition seem to be working fine except for the fact that I am receiving following errors on browser console TypeError: svg.selectAll(...).data(...).enter(...).append(...).attr(...).append(...).attr(...).attr(...).attr(...).attr(...).attr(...).attr(...).attr(...).attr(...).transition(...).duration(...).attr(...).attr(...).attr(...).on is not a function TypeError: bars.append(...).attr(...).attr(...).transition(...).duration(...).attr(...).attr(...).transition(...).duration(...).attr(...).attr(...).attr(...).attr(...).attr(...).attr(...).attr(...).attr(...).on is not a function

And because of these error rest of the script is not working properly and graphs are displayed properly. Any help will be appreciated.

Answer 1

Add the .on(...) call before the .transition(), then it should be fine.