@firstprateek/bar-chart
Version:
A customizable web component that plots a bar chart with ordinal values in the x axis and numerical values in y axis.
107 lines (95 loc) • 2.9 kB
HTML
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="description" content="Starter Template">
<meta name="author" content="Prateek Joshi">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="https://d3js.org/d3.v6.js"></script>
<title><%= htmlWebpackPlugin.options.title %></title>
</head>
<body>
<main>
<h1>Bar Chart Demo!</h1>
<bar-chart
width="500"
height="440"
data='[{"group":"A","value":10},{"group":"B","value":19},{"group":"C","value":8}]'
min="0"
max="20"
></bar-chart>
<button id="button1">Change to data 1</button>
<button id="button2">Change to data 2</button>
<button id="button3">Data Stream</button>
</main>
<script>
const button1 = document.querySelector('#button1');
const button2 = document.querySelector('#button2');
const button3 = document.querySelector('#button3');
const barChart = document.querySelector('bar-chart');
const data1 = [
{ group: 'A', value: 20 },
{ group: 'B', value: 10 },
{ group: 'C', value: 5 },
{ group: 'D', value: 15 },
{ group: 'E', value: 18 },
];
const data2 = [
{ group: 'A', value: 2 },
{ group: 'B', value: 5 },
{ group: 'D', value: 1 },
{ group: 'E', value: 8 },
];
let data3 = [
{ group: 'A', value: 0 },
{ group: 'B', value: 0 },
{ group: 'C', value: 0 },
{ group: 'D', value: 0 },
{ group: 'E', value: 0 },
];
button1.addEventListener('click', (event) => {
barChart.data = data1;
});
button2.addEventListener('click', (event) => {
barChart.data = data2;
});
let timer;
let counter = 0;
button3.addEventListener('click', (event) => {
if (timer) {
return;
}
barChart.transitionDuration = 500;
for (let i=0; i<5; i++) {
data3[i].value = 0;
}
timer = setInterval(() => {
counter++;
if (counter > 0 && counter % 5) {
data3[0].value++;
}
if (counter > 0 && counter % 10) {
data3[1].value++;
}
if (counter > 0 && counter % 2) {
data3[2].value++;
}
if (counter > 0 && counter % 3) {
data3[3].value++;
}
if (counter > 0 && counter % 7) {
data3[4].value++;
}
barChart.data = [...data3];
if (counter === 20) {
counter = 0;
clearInterval(timer);
timer = undefined;
barChart.transitionDuration = 1000;
}
}, 500);
});
</script>
</body>
</html>