dist/storage-helper.js
function setItem(key, value) {
  storage[key] = typeof value === 'string' ? value : JSON.stringify(value);
}
function setItem(key, value) {
  storage[key] = typeof value === 'string' ? value : JSON.stringify(value);
}
function setItem ( key , value ) { storage [ key ] = typeof value === 'string' ? value : JSON . stringify ( value ) ; }
Add item in out session storage
@param {String} key
@param {String} value
Add item in out session storage