Static getItem 

pub static getItem: GetItemInternalType

Returns the value of an item that was stored in local storage using storeItem()

Examples

 // Click the mouse to change
 // the color of the background
 // Once you have changed the color
 // it will stay changed even when you
 // reload the page.
let myColor;
function setup() {
   createCanvas(100, 100);
   myColor = getItem('myColor');
 }
function draw() {
   if (myColor !== null) {
     background(myColor);
   }
 }
function mousePressed() {
   myColor = color(random(255), random(255), random(255));
   storeItem('myColor', myColor);
 }

Parameters

key name that you wish to use to store in local storage