更改后，jQuery按钮在第一次单击时不起作用

Question

所以，我正在检查localStorage以查看是否存在某个键，如果存在，则更改按钮值。

with open('test_items.csv', 'r') as plik:
    tab = {}
    for line in plik:
        line = line.split(',')
        tab[line[0]] = line[1:]

with open('pin_items.csv', 'r') as plik1:
    for line in plik1:
        line = line.split(',')
        match = str([i for i in tab.keys() if line[0] in i][0])
        if match:
            tab[match] = tab[match].append(line[1:])

当我点击按钮时，第一次没有任何反应，只有当我第二次点击它时。

$(document).ready(function() {
    console.log(localStorage.length);
    ProductName = $("#ProductNameHidden").text();
    for (var i = 0; i < localStorage.length; i++) {
        if (localStorage.key(i) == ProductName) {
            document.getElementById("SubmitButton").value = "GO TO CART";
            return false;
        } else {
            document.getElementById("SubmitButton").value = "ADD TO CART";
        }
    }
});

Answer 1

应该是，

$("#SubmitButton").click(function() {
  if ($(this).val() == "GO TO CART") {
    window.location.href = "Cart.html"
  }
});