Question

我已经尝试了几个小时让这个程序运行但我现在得到了这些错误，并且不知道我做错了什么，感谢任何帮助。

未捕获的SyntaxError：意外的令牌{
未捕获的ReferenceError：   start未定义
未捕获的ReferenceError：全局不是   定义

Il将错误放入代码中，以便您知道它们的来源。

<html>
<head>
    <title>Uppgift 6</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <script type="text/javascript">
        var $NS {}; <---Uncaught SyntaxError: Unexpected token {
        $NS.Vara = function () {
            this.namn = Mjölk;
            this.pris = 17;
            this.beskrivning= Arla 3%;
            this.antal= 40;
            this.calcSubTotal = function () {
                document.getElementById("resultat").value = this.pris * this.antal;
            };
        };
        var global;
        function start() { <---Uncaught ReferenceError: start is not defined
            global = new $NS.Vara(); <--- Uncaught ReferenceError: global is not defined
        }
    </script>
</head>
<body onload="start()">
    <form>
        <input type="button" value="Value" onClick="global.calcSubTotal()"/>
        <input type="text" id="resultat"/>
    </form>
</body>
</html>

Answer 1

我认为错误从var $NS之后的缺失=开始，分配给namn和beskrivning的常量字符串未被'或"括起来

尝试：

var $NS = {}; <---Uncaught SyntaxError: Unexpected token {
$NS.Vara = function () {
    this.namn = "Mjölk";
    this.pris = 17;
    this.beskrivning= "Arla 3%";
    this.antal= 40;
    this.calcSubTotal = function () {
        document.getElementById("resultat").value = this.pris * this.antal;
    };
};
var global;
function start() { <---Uncaught ReferenceError: start is not defined
    global = new $NS.Vara(); <--- Uncaught ReferenceError: global is not defined
}

未捕获的SyntaxError和未捕获的ReferenceError

1 个答案: