0729

1. assets pipline https://ihower.tw/rails/assets-pipeline.html

2.html dom https://www.w3schools.com/js/js_htmldom.asp

3.hidden_field https://apidock.com/rails/ActionView/Helpers/FormHelper/hidden_field

4.會員儲值

5.庫存量＆會員購買數

6.replenish--new.html.erb