D3.js | d3.set.add() Function

The set.add() function in D3.js is used to add the specified value string to the created set.

Syntax:

d3.set().add(element);

Parameters: This function accepts single parameter element which is going to be added into the created set.

Return Value: This function does not returns any values.

Below programs illustrate the d3.set.add() function in D3.js:

Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

<!DOCTYPE html>
  
<html>
   
<head>
    <title> d3.set.add() Function</title>
   
    <script src='https://d3js.org/d3.v4.min.js'></script>
</head>
  
<body>
  <script>
      
     // Initialising the set
     var set = d3.set()
    .add("Geeks")
    .add("Geeks")
    .add("gfg");
  
    // Checking whether the desired element is 
    // present or not
    A = set.has("GeeksforGeeks");
    B = set.has("Ram");
    C = set.has("Geeks");
      
    // Getting the output of true or false
    console.log(A);
    console.log(B);
    console.log(C);
  </script>
</body>
  
</html>

chevron_right


Output:

false
false
true

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

<!DOCTYPE html>
  
<html>
   
<head>
    <title> d3.set.add() Function</title>
   
    <script src='https://d3js.org/d3.v4.min.js'></script>
</head>
  
<body>
  <script>
      
     // Initialising the set
     var set = d3.set().add("a").add(1).add(123);
  
    // Checking whether the desired element is 
    // present or not
    A = set.has("a");
    B = set.has(123);
    C = set.has(5);
      
    // Getting the output of true or false
    console.log(A);
    console.log(B);
    console.log(C);
  </script>
</body>
  
</html>

chevron_right


Output:

true
true
false

Ref: https://devdocs.io/d3~5/d3-collection#set_add



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.