Chart.js to remove last point - Javascript Chart.js

Javascript examples for Chart.js:Chart Configuration

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Description

Chart.js to remove last point

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://cdnjs.cloudflare.com/ajax/libs/Chart.js/1.0.2/Chart.js"></script> 
      <script type="text/javascript">
    window.onload=function(){/*w w  w. jav  a2 s  . c  o  m*/
var options = {};
var currData = {
                labels: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
                datasets: [
                    {
                        label: "Number of beers drunk in the last week",
                        data: [5, 7, 10, 4, 2, 8, 3]
                    }
]}
removeLast = function() {
   dataArray = currData.datasets[0].data;
   dataArray.pop();
  console.log(dataArray);
   currData.datasets[0].data = dataArray;
  console.log(currData.datasets[0].data)
   myLineChart.update();
}
var ctx = document.getElementById("myChart").getContext("2d");
var myLineChart = new Chart(ctx).Line(currData);
    }

      </script> 
   </head> 
   <body> 
      <canvas id="myChart" width="400" height="400"></canvas> 
      <button onclick="removeLast()"> Remove </button>  
   </body>
</html>

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