The d3.shuffle() function in D3.js is used to randomize or shuffle the order of the given array elements in place and returns the array.
Syntax:
d3.shuffle( Array, start, stop )
Parameters: This function accepts three parameters as mentioned above and described below:
- Array: This parameter holds the array elements.
- start: It represents the starting index of array to shuffle the array elements. It start value not specifies then it takes zero as default value.
- stop: It represent the ending index of array to shuffle the array elements. Its default value is the length of array.
Return Value: It returns the array of shuffled elements.
Below programs illustrate the d3.shuffle() function in D3.js:
Example 1:
<!DOCTYPE html> <html> <head> <title>d3.shuffle() Function</title>
</head> <body> <script>
// Initialising some array of elements
Array1 = [1, 2, 3, 4];
Array2 = [10, 20, 30, 40];
Array3 = [5, 7, 9, 11];
Array4 = [2, 4, 6, 8, 10];
// Calling to d3.shuffle() function
A = d3.shuffle(Array1);
B = d3.shuffle(Array2, 1, 3);
C = d3.shuffle(Array3);
D = d3.shuffle(Array4, 2, 5);
// Getting the shuffled elements
document.write(A + "<br>" );
document.write(B + "<br>" );
document.write(C + "<br>" );
document.write(D + "<br>" );
</script>
</body> </html> |
Output:
2, 3, 1, 4 20, 40, 10, 30 11, 9, 5, 7 2, 10, 4, 8, 6
Example 2:
<!DOCTYPE html> <html> <head> <title>d3.shuffle() Function</title>
</head> <body> <script>
// Initialising some array of elements
Array1 = [ "a" , "b" , "c" ];
Array2 = [ "z" , "y" , "x" ];
// Calling to d3.shuffle() function
A = d3.shuffle(Array1);
B = d3.shuffle(Array2);
// Getting the shuffled elements
document.write(A + "<br>" );
document.write(B + "<br>" );
</script>
</body> </html> |
Output:
b, a, c z, y, x
Reference: https://devdocs.io/d3~5/d3-array#shuffle