D3.js | d3.set.remove() function

Last Updated : 28 Jun, 2019

The set.remove() is a function in D3.js. If the given array contains the specified value then removes it and returns true. Otherwise, this function does nothing and returns false.

Syntax:

d3.set([Array]).remove(element);

Parameters: This function accepts two parameters which are illustrated below:

Array: This is an given array of elements as string.
element: This is the value which is going to be searched into the given array and removes it if present and returns true otherwise does nothing and returns false.

Return Value: It returns true if the given array contains the specified value Otherwise, returns false.
Note: It does not hold the updated array.
Below programs illustrate the d3.set.remove() function in D3.js.
Example 1:

<!DOCTYPE html> 
<html> 
    
<head> 
    <title> d3.set.remove() Function</title> 
        
    <script src='https://d3js.org/d3.v4.min.js'></script> 
</head> 
<body> 
    
  <script> 
      
     // Initialising an array 
     Array1 = ["a", "a", "b", "c"]; 
     Array2 = ["c", "c", "c"]; 
     Array3 = ["Geeks", "gfg", "GeeksforGeeks"]; 
       
     // Calling the d3.set.remove() function 
     A = d3.set(Array1).remove("a"); 
     B = d3.set(Array2).remove("a"); 
     C = d3.set(Array3).remove("Geeks"); 
       
     // Getting the value true if the specified element 
     // is present in the array otherwise false 
     console.log(A); 
     console.log(B); 
     console.log(C); 
  </script> 
</body> 

Output:

true
false
true

Example 2:

<!DOCTYPE html> 
<html> 
    
<head> 
    <title> d3.set.remove() Function</title> 
        
    <script src='https://d3js.org/d3.v4.min.js'></script> 
</head> 
<body> 
    
  <script> 
       
     // Calling the d3.set.remove() function 
     // with a array and a element as the parameter  
     A = d3.set([1, 2, 3, 3]).remove(4); 
     B = d3.set(["a"]).remove("a"); 
     C = d3.set(["a", "b", "c", "a", "b", "c"]).remove("d"); 
       
     // Getting the value true if the specified element 
     // is present in the array otherwise false 
     console.log(A); 
     console.log(B); 
     console.log(C); 
  </script> 
</body> 