Remove hover legend from bar chart using morris.js

Question

I'm using morris.js library to generate charts.

I want to remove the hover legends from the chart. Please check the picture below for better understanding. How can I remove them? Any idea to fix it? Thanks in advance.

new Morris.Bar({
  // ID of the element in which to draw the chart.
  element: 'myfirstchart',
  // Chart data records -- each entry in this array corresponds to a point on
  // the chart.
  data: [
    {year: '2008', value: 20},
    {year: '2009', value: 10},
    {year: '2010', value: 5},
    {year: '2011', value: 5},
    {year: '2012', value: 20}
  ],
  // The name of the data record attribute that contains x-values.
  xkey: 'year',
  // A list of names of data record attributes that contain y-values.
  ykeys: ['value'],
  // Labels for the ykeys -- will be displayed when you hover over the
  // chart.
  labels: ['Value']
});

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.min.js"></script>
<div id="myfirstchart" style="height: 250px;"></div>

Answer 1

To disable the hover legend, use the hideHover property and set it to 'always'.

The hideHover property accepts the following values:

• false (boolean) - always show a hover legend
• true (boolean) or 'auto' (string) - only show the hover legend, when the mouse cursor is over the chart
• 'always' (string) - never show a hover legend

new Morris.Bar({
  // ID of the element in which to draw the chart.
  element: 'myfirstchart',
  // Chart data records -- each entry in this array corresponds to a point on
  // the chart.
  data: [
    {year: '2008', value: 20},
    {year: '2009', value: 10},
    {year: '2010', value: 5},
    {year: '2011', value: 5},
    {year: '2012', value: 20}
  ],
  // The name of the data record attribute that contains x-values.
  xkey: 'year',
  // A list of names of data record attributes that contain y-values.
  ykeys: ['value'],
  // Labels for the ykeys -- will be displayed when you hover over the
  // chart.
  labels: ['Value'],
  // Remove hover legend
  hideHover: 'always'
});

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.min.js"></script>
<div id="myfirstchart" style="height: 250px;"></div>

You can also customize the hover legend by assigning a callback function to the hoverCallback property:

new Morris.Bar({
  // ID of the element in which to draw the chart.
  element: 'myfirstchart',
  // Chart data records -- each entry in this array corresponds to a point on
  // the chart.
  data: [
    {year: '2008', value: 20},
    {year: '2009', value: 10},
    {year: '2010', value: 5},
    {year: '2011', value: 5},
    {year: '2012', value: 20}
  ],
  // The name of the data record attribute that contains x-values.
  xkey: 'year',
  // A list of names of data record attributes that contain y-values.
  ykeys: ['value'],
  // Labels for the ykeys -- will be displayed when you hover over the
  // chart.
  labels: ['Value'],
  // Customized hover legend via a callback
  hoverCallback: function (index, options, content, row) {
    return 'Legend ' + index + '<br> on year ' + row.year + '<br> with value ' + row.value;
  }
});

<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.min.js"></script>
<div id="myfirstchart" style="height: 250px;"></div>

Check out the morris.js API for line & area charts