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D3.js schemePuBu[ ] Function

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The d3.schemePuBu[] function in D3.js is used to return a particular color from the “PuBu” sequential color scheme which is returned as a HEX string.

Syntax:

d3.schemePuBu[k]

Parameters: This function accepts a single parameter as mentioned above and described below.

  • k: “k” is a number ranging from 3 to 9.

Return Values It returns a HEX string.

Below given are a few examples of the function given above.

Example 1:

HTML




<!DOCTYPE html> 
<html lang="en"
<head
    <meta charset="UTF-8" /> 
    <meta name="viewport"
        path1tent="width=device-width,  
        initial-scale=1.0"/> 
          
    <title>D3.js schemePuBu[] Function</title
    <script src
    </script
    <script src
    </script
    <script src
    </script
    <script src
    </script
</head
<body
    <center>
    <h1 style="color:green;">GeeksForGeeks</h1>
      
    <h3>D3.js schemePuBu[] Function</h3>
      
    <script
        document.write(d3.schemePuBu[8][0]+"<br>"); 
        document.write(d3.schemePuBu[8][1]+"<br>");
        document.write(d3.schemePuBu[8][2]+"<br>");
        document.write(d3.schemePuBu[8][3]+"<br>");
        document.write(d3.schemePuBu[8][4]+"<br>");
        document.write(d3.schemePuBu[8][5]+"<br>");
        document.write(d3.schemePuBu[8][6]+"<br>");
        document.write(d3.schemePuBu[8][7]+"<br>");
    </script
    </center>
</body
</html>


Output:

Example 2:

HTML




<!DOCTYPE html> 
<html lang="en"
<head
    <meta charset="UTF-8" /> 
    <meta name="viewport"
        path1tent="width=device-width,  
        initial-scale=1.0"/> 
          
    <title>D3.js schemePuBu() Function</title
    <script src
    </script
    <script src
    </script
    <script src
    </script
    <script src
    </script
</head
<style
    div { 
        padding: 3px; 
        width: fit-content; 
        height: 20px;
        width: 250px;
    
</style
<body
    <center>
    <h1 style="color:green;">GeeksForGeeks</h1>
      
    <h3>D3.js schemePuBu() Function</h3>
      
    <div class="b1"
        <span
            D3.schemePuBu[8][0] 
        </span
    </div
    <div class="b2"
        <span
            D3.schemePuBu[8][1]   
        </span
    </div
    <div class="b3"
        <span
            D3.schemePuBu[8][2] 
        </span
    </div
    <div class="b4"
        <span
            D3.schemePuBu[8][3]  
        </span
    </div
    <div class="b5"
        <span
            D3.schemePuBu[8][4] 
        </span
    </div
    <div class="b6"
        <span
            D3.schemePuBu[8][5]  
        </span
    </div
    <div class="b7"
        <span
            D3.schemePuBu[8][6]  
        </span
    </div
    <div class="b8"
        <span
            D3.schemePuBu[8][7] 
        </span
    </div
    <script
        // Array of colors is given 
        let color1 = d3.schemePuBu[8][0]; 
        let color2 = d3.schemePuBu[8][1]; 
        let color3 = d3.schemePuBu[8][2]; 
        let color4 = d3.schemePuBu[8][3]; 
        let color5 = d3.schemePuBu[8][4]; 
        let color6 = d3.schemePuBu[8][5];
        let color7 = d3.schemePuBu[8][6]; 
        let color8 = d3.schemePuBu[8][7]; 
  
        let b1 = document.querySelector(".b1"); 
        let b2 = document.querySelector(".b2"); 
        let b3 = document.querySelector(".b3"); 
        let b4 = document.querySelector(".b4"); 
        let b5 = document.querySelector(".b5"); 
        let b6 = document.querySelector(".b6"); 
        let b7 = document.querySelector(".b7"); 
        let b8 = document.querySelector(".b8"); 
          
        b1.style.backgroundColor = color1; 
        b2.style.backgroundColor = color2;
        b3.style.backgroundColor = color3; 
        b4.style.backgroundColor = color4;
        b5.style.backgroundColor = color5; 
        b6.style.backgroundColor = color6;
        b7.style.backgroundColor = color7;
        b8.style.backgroundColor = color8; 
    </script
    </center>
</body
</html>


Output:



Last Updated : 21 Aug, 2020
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