title: D3.js v3 to v4 Brush changes
body: <p>I'm looking to migrate from d3v3 to d3v4.
  In particular i'm having difficulties in migrating brushes.</p>
  
  <p>Can someone please have a look at below link and let me know the changes?
  <a href="http://bl.ocks.org/zanarmstrong/ddff7cd0b1220bc68a58" rel="noreferrer">http://bl.ocks.org/zanarmstrong/ddff7cd0b1220bc68a58</a></p>
  
  <p>Some changes i have identified:</p>
  
  <p>d3.time.format -> d3.timeFormat</p>
  
  <p>d3.time.scale -> d3.scaleTime</p>
  
  <p>Facing issues in migrating:</p>
  
  <p>d3.svg.brush -> d3.brushX</p>
  
  <p>Thanks &amp; Regards,</p>
  
  <p>Naishav</p>