Save visited data using localStorage

visiteddata.js

const itemStr = localStorage.getItem('visit-data')

let items = [];
if (itemStr) {
  items = JSON.parse(itemStr);
}

//delete if exists
let item = items.find(o => o.code === code);
if(item){
  items = items.filter(row => row.code !== code);
}

//push new data
const exp = new Date();
exp.setDate(exp.getDate() + 1);
exp.setHours(3,0,0,0);

items.push({
  code: code,
  expiry: exp.getTime()
})

localStorage.setItem('visit-data', JSON.stringify(items));

//get data demo
const itemStr = localStorage.getItem('visit-data')
// if the item doesn't exist, return false
if (!itemStr) {
  itemStr = false;
}

const now = new Date()
const items = JSON.parse(itemStr);
let item = items.find(o => o.code === code);
var isrecent = false
if(item){
  if(item.expiry > now.getTime()){
    isrecent = true   
  }else{
    const newitems = items.filter(row => row.code !== item.code);
    localStorage.setItem('visit-data', JSON.stringify(newitems));    
  }
}