p5.js subset() function

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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); 
}