The d3.stack() method constructs a new stack generator with the default settings. This stack generator can be further used to create stacks.
Syntax:
d3.stack()
Parameters: This method takes no parameters.
Return Value: This method returns a new stack generator with the default settings.
Example:
html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src=
"https://d3js.org/d3.v5.min.js">
</script>
</head>
<body>
<h1 style="text-align: center; color: green;">
GeeksforGeeks
</h1>
<center>
<canvas id="gfg" width="200" height="200">
</canvas>
</center>
<script>
var data = [
{a: 3840, b: 1920, c: 960, d: 400},
{a: 1600, b: 1440, c: 960,