Display value of only one datapoint in line chart - Javascript Chart.js

Javascript examples for Chart.js:Line Chart

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Description

Display value of only one datapoint in line chart

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://momentjs.com/downloads/moment.js"></script> 
      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.js"></script> 
      <script type="text/javascript">
    window.onload=function(){/*from   w  w w  . ja  va  2 s  .  c om*/
 var MONTHS = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
function randomScalingFactor() {
   return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
};
var config = {
  type: 'line',
  data: {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [{
      label: "My First dataset",
      data: [
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor()
      ],
      fill: false,
    }, {
      label: "My Second dataset",
      fill: false,
      data: [
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor(),
        randomScalingFactor()
      ],
    }]
  },
  options: {
    responsive: true,
    title:{
      display:true,
      text:'Chart.js Line Chart'
    },
    tooltips: {
       mode: 'nearest',
      intersect: false,
    },
    hover: {
      mode: 'nearest',
      intersect: true
    },
    scales: {
      xAxes: [{
        display: true,
        scaleLabel: {
          display: true,
          labelString: 'Month'
        }
      }],
      yAxes: [{
        display: true,
        scaleLabel: {
          display: true,
          labelString: 'Value'
        }
      }]
    }
  }
};
var ctx = document.getElementById("canvas").getContext("2d");
new Chart(ctx, config);
    }

      </script> 
   </head> 
   <body> 
      <canvas id="canvas"></canvas>  
   </body>
</html>

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