The d3.permute() function in D3.js is used to permutate the elements of the given array with a given specified array of indexes and it returns the array containing the corresponding element for each given indexes.
Syntax:
d3.permute(array, Index)
Parameters: This function accepts two parameters which are mentioned above and described below:
- Array: It is the array of elements on which permutation is performed.
- Index: It is the given index which is used to permutate the given array elements and correspondingly returns the elements of the given array into an array.
Return Value: It returns the array of permuted elements.
Below programs illustrate the d3.permute() function in D3.js.
Example 1: In the below code, the permutation is being done on the elements of the given array with a given specified array of indexes and it returns the array containing the corresponding element for each given indexes.
<html> <head> <title> Getting permuted array of elements </title> </head> <body> </script> <script> // Initialising the arrays of elements var Array1 = ["gfg", "Geek", "Geeks", "neveropen"]; var Array2 = ["a", "ab", "abc", "abcd"]; // Initialising the indexes var Index1 = [1, 2, 0, 3]; var Index2 = [3, 1, 2, 0]; // Calling to d3.permute() function A = d3.permute(Array1, Index1); B = d3.permute(Array2, Index2); // Getting permuted array of elements document.write(A + "<br>"); document.write(B + "<br>"); </script> </body> </html> |
Output:
Geek, Geeks, gfg, neveropen abcd, ab, abc, a
Example 2:
<html> <head> <title> Getting permuted array of elements </title> </head> <body> </script> <script> // Taking the array of elements and // indexes as the parameters // for the function d3.permute() A = d3.permute(["Hi", "Hello", "Greet"], [1, 2, 0]); B = d3.permute(["Ram", "Shyam", "Geeta", "Hari"], [3, 1, 2, 0]); // Getting permuted array of elements document.write(A + "<br>"); document.write(B + "<br>"); </script> </body> </html> |
Output:
Hello, Greet, Hi Hari, Shyam, Geeta, Ram
Ref: https://devdocs.io/d3~4/d3-array#permute
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