JSFiddle - React, Tailwind, and code Playground

by Eugen Sunic

HTML

<script src="http://www.chartjs.org/assets/Chart.js"></script>
<canvas id="myChart" width="700" height="400"></canvas>
<button type="button" class="yes" onclick="basDar()">Click Me!</button>

JavaScript

var array= [100, 59, 80, 333, 56, 55, 40]

var data = {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [
        {
            label: "My First dataset",
            fillColor: "rgba(220,220,220,0.5)",
            strokeColor: "rgba(220,220,220,0.8)",
            highlightFill: "rgba(220,220,220,0.75)",
            highlightStroke: "rgba(220,220,220,1)",
            data: array
        }
       
    ]
};

    var options = {
        animation: true
    };

    //Get the context of the canvas element we want to select
    
    var ctx = document.getElementById("myChart").getContext("2d");
    /*************************************************************************/
    myNewChart = new Chart(ctx).Bar(data, options);


function basDar()

{   alert("yes");
 for (var i=0; i<7; i++){ myNewChart.removeData();}
    array= [100, 200, 300, 333, 400, 555, 700]
    var data = {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [
        {
            label: "My First dataset",
            fillColor: "rgba(220,220,220,0.5)",
            strokeColor: "rgba(220,220,220,0.8)",
            highlightFill: "rgba(220,220,220,0.75)",
            highlightStroke: "rgba(220,220,220,1)",
            data: array
        }
       
    ]
};

    var options = {
        animation: true
    };
    myNewChart = new Chart(ctx).Bar(data, options);
   
}