The subset() function in p5.js is used to get the subset of the given array elements. This function extracts the elements from an existing array.
Syntax:
subset(Array, Start, Count)
Parameters: This function accepts three parameters as mentioned above and described below:
- Array: This parameter holds the array elements on which the subset() operation is to be done to get its subset element.
- Start: This is the number from where extraction is to be done. Its value starts from 0.
- Count: This is the number of elements that are to be extracted.
Return Value: It returns the extracted elements. The below programs illustrate the subset() function in p5.js
Example 1: This example uses the subset() function to get the subset of the given array of elements.
javascript
function setup() { // Creating Canvas size createCanvas(600, 90); } function draw() { // Set the background color background(220); // Initializing the array let Array = ['Ram', 'Geeta', 'Shita', 'Shyam']; // Initializing a start value from where // extraction is done // it starts from 0. let Start = 1; // Initializing the count which defines // the number of elements to be extracted let Count = 2; // Calling to subset() function. let A = subset(Array, Start, Count); // Set the size of text textSize(16); // Set the text color fill(color('red')); // Getting extracted elements text(& quot;Extracted elements are: & quot; + A, 50, 30); } |
Output:
Example 2: This example uses the subset() function to get the subset of the given array elements.
javascript
function setup() { // Creating Canvas size createCanvas(600, 90); } function draw() { // Set the background color background(220); // Initializing the array let Array = ['Ram', 'Geeta', 'Shita', 'Shyam']; // Initializing a start value from where // extraction is done // it starts from 0. let Start = 0; // Initializing the count which defines // the number of elements to be extracted let Count = 3; // Calling to subset() function. let A = subset(Array, Start, Count); // Set the size of text textSize(16); // Set the text color fill(color('red')); // Getting extracted elements text(& quot;Extracted elements are: & quot; + A, 50, 30); } |
Output:
Reference: https://p5js.org/reference/#/p5/subset
