Growing chart value in line chart chart.js - Javascript Chart.js

Javascript examples for Chart.js:Line Chart

  1. HOME
  2. Javascript
  3. Chart.js
  4. Line Chart

Description

Growing chart value in line chart chart.js

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>ChartJS Line Chart</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.js"></script> 
      <script type="text/javascript">
    window.onload=function(){/*w  w w  .  ja  v a  2 s.c om*/
var options = {
  type: 'line',
  data: {
    labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
    datasets: [
       {
         label: 'Crash line',
         data: [0, 1],
         borderWidth: 1
       }
      ]
  },
    options: {
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero: true
                }
            }]
        }
    }
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
var chart = new Chart(ctx, options);
var somefunc = function(chart){
var chartDatasetLength = chart.data.datasets[0].data.length;
   for(var i = 0; i < chartDatasetLength; i++){
     chart.data.datasets[0].data[i] += 1;
  }
  chart.update();
}
setInterval(somefunc, 1000, chart);
    }

      </script> 
   </head> 
   <body>  
      <canvas id="chartJSContainer" width="600" height="400"></canvas>   
   </body>
</html>

Related Tutorials