How can I get the D3.js axis ticks and positions as an array?

Question

I usually place my axis ticks on the svg using this:

d3.svg.axis().scale(xScale(width)).ticks(4)

Is it possible to get these tick values a

Answer 1

In d3 v4 I ended up just parsing the rendered x values from the tick nodes

function parseX(transformText) {
    let m = transformText.match(/translate\(([0-9\.]*)/);
    let x = m[1];
    if (x) {
        return parseFloat(x);
    }
}