title: How to read in CSV with d3 v4?
body: <p>I'm just having a little trouble understanding the documentation for <a href="https://github.com/d3/d3-dsv/blob/master/README.md#dsv_parse" rel="noreferrer">CSV Parse</a> with D3. I currently have: </p>
  
  <pre><code>d3.parse("data.csv",function(data){
      salesData = data; 
  });
  </code></pre>
  
  <p>But I keep on getting the error: </p>
  
  <blockquote>
    <p>Uncaught TypeError: d3.parse is not a function</p>
  </blockquote>
  
  <p>What is this supposed to look like? I'm just a little confused, and the only examples that I could find was something like <a href="http://learnjsdata.com/read_data.html" rel="noreferrer">this</a>. </p>
  
  <p>I also tried something like: </p>
  
  <pre><code>d3.dsv.parse("data.csv",function(data){
      salesData = data; 
  });
  </code></pre>
  
  <p>and got: </p>
  
  <blockquote>
    <p>Uncaught TypeError: Cannot read property 'parse' of undefined </p>
  </blockquote>
  
  <p>Why is this happening? Any help would be greatly appreaciated, thanks!! </p>