how much is in localstorage

how-much-in-localstorage.js

let _lsTotal = 0;
let _xLen;
let _x;

for (_x in localStorage) {
  if (!localStorage.hasOwnProperty(_x)) {
    continue;
  }
  _xLen = ((localStorage[_x].length + _x.length) * 2);
  _lsTotal += _xLen;
  console.log(`${_x.substr(0, 50)} = ${(_xLen / 1024).toFixed(2)}KB`)
};

console.log(`Total = ${(_lsTotal / 1024).toFixed(2)}KB`);