<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
window.onload = function () {
var dps = []; //dataPoints.
var chart = new CanvasJS.Chart("chartContainer", {
title: {
text: "Accepting DataPoints from User Input"
},
data: [{
type: "line",
dataPoints: dps
}]
});
function addDataPointsAndRender() {
xValue = Number(document.getElementById("xValue").value);
yValue = Number(document.getElementById("yValue").value);
dps.push({
x: xValue,
y: yValue
});
chart.render();
}
var renderButton = document.getElementById("renderButton");
renderButton.addEventListener("click", addDataPointsAndRender);
}
</script>
<script type="text/javascript"
src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
</head>
<body>
X Value:
<input id="xValue" type="number" step="any" placeholder="Enter X-Value"> Y Value:
<input id="yValue" type="number" step="any" placeholder="Enter Y-Value">
<select id="select1">
<option value="bar">Bar</option>
<option value="pie">Pie</option>
<option value="column">Column</option>
</select>
</p>
<button id="renderButton">Add DataPoint & Render</button>
<div id="chartContainer" style="height: 270px; width: 100%;">
</div>
</body>
</html>In the above code how I can change the value of chart type in data attribute of this function data: [{ type: "line", dataPoints: dps }] dynamically with the help of html select options?? plz help me as I am beginner in JS and solutions with the help of jquery will also be welcomed...