title: A slider created with d3.slider.js will not allow movement to last value
body: <p>Based on this example(<a href="https://codepen.io/anon/pen/rZPpWy" rel="nofollow noreferrer">https://codepen.io/anon/pen/rZPpWy</a>) I tried to adapt the Slider with ordinal scales, to have more values. </p>
  
  <p>But the slider I created does not seem to move to the last value.</p>
  
  <p>I have created a codepen displaying this behavior:</p>
  
  <pre><code>data = ["1890-1914", "1914-1930", "1930-1950", "1950-1970", "1970-1980", "1990-2006", "2006-2018"]
  
    essai = d3.slider().scale(d3.scale.ordinal().domain(data).rangePoints([0, 1], 0.5)).axis(d3.svg.axis()).snap(true).value("1890-1914");
  </code></pre>
  
  <p><a href="https://codepen.io/rhys-newbury/pen/RYvxyd" rel="nofollow noreferrer">https://codepen.io/rhys-newbury/pen/RYvxyd</a></p>
  
  <p>Is this an issue caused by my code?
  Thankyou</p>