Node.js forEach不是一个路由中的函数，而是另一个路由中的函数

我知道forEach需要数组数据类型才能工作。但是，我的数据是客户列表（在Mongodb集合中），它被传递到“/view customers”路径中的另一个forEach循环中，并且可以正常工作。但我无法让它在另一条路径（“/transaction”）中工作

//数据库项“：

my transaction.ejs代码：

<%- include("partials/header"); -%> 


       <h3>Transaction Portal:</h3>
<br><br><br>
<h4>Welcome, please select the sender and the amount you want to transfer to <span class="color"><%= customerName %></span></h4><br><br>
<form action="/transaction/<%= customerName %>" method="post">

    <h4>Sender:</h4>
   <select>
    <option>
                       <ol>
  <% customers.forEach(function(customer){ %>
                     <br> <%= customer.name %>
  <% }); %>
</ol>
       </option> 
    </select>
    <input type="number" id="amount" name="amount" placeholder="Enter transfer amount"><button id="transfer" type="submit" value="Transfer">Transfer</button>

</form>

<%- include("partials/footer"); -%>

交易门户：




欢迎光临，请选择发件人和您要转账的金额


发件人：


转移

我非常抱歉，因为我的问题太长太无聊，无法通过！但如果您能抽出时间回答我的问题，我将不胜感激。

---

此外，这是我的第一个问题，如果我在构建/解释它时犯了任何错误，我向您道歉。

'customers'：[customer\u list]

替换为

customers:customer\u list

。

//([{ "name" : "Shruti Sinha", "currentbalance" : 1000 },
//{  "name" : "Aryan Singh", "currentbalance" : 6000 },
//{ "name" : "James Brown", "currentbalance" : 9000 },
//{ "name" : "Nupur Sen", "currentbalance" : 12000 },
//{  "name" : "Oishiki Ganguly", "currentbalance" : 15000 },
//{  "name" : "Aditi Patel", "currentbalance" : 11000 },
//{  "name" : "Rohan Bharadwaj", "currentbalance" : 10000 },
//{  "name" : "Samarth Shah", "currentbalance" : 1000 },
//{  "name" : "Ananya Maheshwari", "currentbalance" : 8000 },
//{"name" : "Ayush Kalra", "currentbalance" : 20000 }])

<%- include("partials/header"); -%> 


       <h3>Transaction Portal:</h3>
<br><br><br>
<h4>Welcome, please select the sender and the amount you want to transfer to <span class="color"><%= customerName %></span></h4><br><br>
<form action="/transaction/<%= customerName %>" method="post">

    <h4>Sender:</h4>
   <select>
    <option>
                       <ol>
  <% customers.forEach(function(customer){ %>
                     <br> <%= customer.name %>
  <% }); %>
</ol>
       </option> 
    </select>
    <input type="number" id="amount" name="amount" placeholder="Enter transfer amount"><button id="transfer" type="submit" value="Transfer">Transfer</button>

</form>

<%- include("partials/footer"); -%>