Using an ordinal scale ('d3.scale.ordinal') for the x-axis in a bar chart

Question

I have a data array like this:

var data = [{\"Alphabet_Type\":\"a\"}, {\"Alphabet_Type\":\"b\"}, {\"Alphabet_Type\":\"a\"}];

I am using:

Answer 1

Adding

.x(d3.scale.ordinal().domain(data.map(function (d) {return d.Alphabet_Type; })))

solved the problem.