From 834316a5a4150e1ea55c1868dd56349a0d1f834d Mon Sep 17 00:00:00 2001
From: "jason.zhu" <jason.zhu@xero.com>
Date: Thu, 27 May 2021 04:43:27 +0000
Subject: [PATCH] chap1->Observables to refresh the UI automatically->Computed
 observables (optimised)

---
 ko-cart/js/viewmodel.js | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/ko-cart/js/viewmodel.js b/ko-cart/js/viewmodel.js
index bc5c32f..4f4c56d 100644
--- a/ko-cart/js/viewmodel.js
+++ b/ko-cart/js/viewmodel.js
@@ -35,16 +35,8 @@ var vm = (function () {
     }
     //filter data
     var filtered = ko.utils.arrayFilter(catalog(), function (item) {
-      var fields = ["name"]; // we choose to filter by name
-      var i = fields.length;
-      while (i--) {
-        var prop = fields[i];
-        var strProp = ko.unwrap(item[prop]).toLocaleLowerCase();
-        if (strProp.indexOf(filter) !== -1) {
-          return true;
-        }
-      }
-      return false;
+      var strProp = ko.unwrap(item["name"]).toLocaleLowerCase();
+      return (strProp.indexOf(filter) > -1);
     });
     return filtered;
   });