p5.js unhex() function

The unhex() function in p5.js is used to convert a string representation of any input hexadecimal number to its equivalent integer value.

Syntax:

unhex(String)

Parameters: This function accepts a parameter String which is a hexadecimal number and is to be converted into its integer equivalent value. This parameter might also be an array of strings of the hexadecimal numbers.

Return Value: It returns the converted integer representation.

Below program illustrates the unhex() function in p5.js.
Example-1:

function setup() {

    // Creating Canvas size
    createCanvas(500, 100);
}

function draw() {

    // Set the background color
    background(220);

    // Initializing some strings
    let String1 = "F";
    let String2 = "FF";

    // Calling to unhex() function.
    let A = unhex(String1);
    let B = unhex(String2);

    // Set the size of text
    textSize(16);

    // Set the text color
    fill(color('red'));

    // Getting integer equivalent
    text("Integer equivalent of hexadecimal string 'F' is: "
         + A, 50, 30);
    text("Integer equivalent of hexadecimal string 'FF' is: "
         + B, 50, 60);

}

Output:

Example-2:

function setup() {

    // Creating Canvas size
    createCanvas(650, 100);
}

function draw() {

    // Set the background color
    background(220);

    // Initializing some strings
    let String1 = ["F", "A", "C"];
    let String2 = ["FF", "AC", "DE"];

    // Calling to unhex() function.
    let A = unhex(String1);
    let B = unhex(String2);

    // Set the size of text
    textSize(16);

    // Set the text color
    fill(color('red'));

    // Getting integer equivalent
    text("Integer equivalent of array of hexadecimal strings"+
         " ['F', 'A', 'C'] is: "
         + A, 50, 30);
    text("Integer equivalent of array of hexadecimal strings"+
         " ['FF', 'AC', 'DE'] is: "
         + B, 50, 60);

}

Output:

Reference: https://p5js.org/reference/#/p5/unhex