我正在尝试在Heroku上部署一个简单的应用程序。它在本地完美运行。当我尝试在Heroku上投放广告时，出现以下错误：
const Arr1 = [
{"_id": "firstSub1", "count": 1, "price": 4},
{"_id": "firstSub2", "count": 2, "price": 7},
{"_id": "firstSub3", "count": 3, "price": 1},
{"_id": "firstSub4", "count": 4, "price": 1}
];
const Arr2 = [
{"name": "firstSub1", "date": "05/20/1998", "type": "sometype1"},
{"name": "firstSub2", "date": "12/22/2011", "type": "sometype2"},
{"name": "firstSub3", "date": "09/23/2004", "type": "sometype3"},
{"name": "firstSub9", "date": "09/23/2004", "type": "sometype9"}
];
let res = Arr1.reduce((acc, {_id, count, price}) =>
{
let fIdx = acc.findIndex(({name}) => name === _id);
if (fIdx >= 0)
Object.assign(acc[fIdx], {count, price});
else
acc.push({_id, count, price});
return acc;
}, JSON.parse(JSON.stringify(Arr2)));
console.log(res);
为什么我被告知.as-console {background-color:black !important; color:lime;}
.as-console-wrapper {max-height:100% !important; top:0;}是一个问题，即使我在本地运行它也可以正常工作？我在运行heroku本地网络时收到该错误。当我尝试在heroku上部署该应用程序时，日志告诉我在尝试npm start时它失败。尽管这是一个问题，但我认为如果不通过heroku本地网络使其在本地运行，它将无法正常工作。代码如下：
src / js / app.js
ReferenceError: $ is not definedsrc / index.html
$package.json
App = {
...
};
$(function() { // THIS IS THE FAILING LINE.
$(window).load(function() {
// App.listen(process.env.PORT || 8000);
App.init();
});
});
Procfile
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<link rel="shortcut icon" type="image/png" href="static/favicon.ico"/>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="css/box.css" rel="stylesheet", type="text/css">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container" style="width: 850px;">
...
</div>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="js/bootstrap.min.js"></script>
<script src="jquery.min.js"></script>
<script src="js/app.js"></script>
<!-- <script -->
</body>
</html>