D3 3.x, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
Added comments for understanding http://alignedleft.com/tutorials/d3/making-a-bar-chart
D3 4.13.0, HTML, CSS, JavaScript
interactive d3 bar
From http://bl.ocks.org/Caged/6476579
Use D3.js to sort in ascending & descending order, utilizing JS Objects.