D3.js stack() method

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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:

<!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;"> 
        zambiatek 
    </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, d: 400}, 
              {a:  640, b:  960, c: 640, d: 400}, 
              {a:  320, b:  480, c: 640, d: 400} 
            ]; 
  
        var stackGen = d3.stack() 
            .keys(["a", "b", "c", "d"]) 
            .order(d3.stackOrderNone) 
            .offset(d3.stackOffsetNone); 
  
        var stack = stackGen(data); 
          
        for(var i=0;i<4;i++){ 
            console.log(stack[i]); 
        } 
          
    </script> 
</body> 
  
</html>

Output:

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