如何在localStorage.length（）上更新数据

Question

how to update data localStorage.length without reload page ?

on event click, localStorage.SetItem(Item.name, count) Then data update it with the function .text(localStorage.length) , but data not updated. thanks

Answer 1

When you refresh the page you load the last localStorage.length . But when you reset the cart you do localStorage.clear(); so you empty the localStorage . In the next line you change the cart text: $('#cart_total').text('(' + storageCount + ')'); and you load the variable storageCount , but the problem is that you never updated that variable.

Use this:

$('#reset').on('click', function() {
   localStorage.clear();
   $('#cart_total').text('(' + localStorage.length + ')');
});