Axis w/ Time Scale

All of the scales made available by d3-scale are usable for an Axis by passing the name of the scale, in all lowercase, to the .scale( ) method:

var bottom = new d3plus.AxisBottom()
  .domain([2002, 2004])

In the case of time scales, all values provided will be mapped to Javascript Date objects. In addition to the standard supported Javascript date strings, the d3plus date function is used so that 4-digit numeric years can also be parsed correctly.