Remove the last bar from D3 bar chart?

Question

这可能是一个简单的问题，但是如果我们有一个使用D3.js构建的条形图，那么我如何才能仅删除最后一个条形图？

Answer 1

Something like this can remove the last bar

k = d3.selectAll("rect")[0];
k.pop().remove()

But the best way, would be to remove the last data set from the data array which makes the last bar.