javascript - 尾随逗号问题，javascript

Question

我目前正在努力让我的 jQuery 在 IE7 中工作，当我检查以下内容时:

$(".regflow").validate({
    errorLabelContainer: $("#error-message"),
    rules: {
        txtTextOnly: {required: true,textOnly: true},
        txtNumbersOnly: {required: true,numbersOnly: true},
        txtPhoneOnly: {required: true,phoneOnly: true},
        txtAreaCodeOnly: {required: true,numbersOnly: true},
        txtSimCodeOnly: {required: true,simCodeOnly: true},
        txtCprOnly1: {required: true,numbersOnly: true},
        txtCprOnly2: {required: true,cprOnly1: true},
        txtMailOnly: {required: true,mailOnly: true}
    },

    messages: {
        txtTextOnly: {required: "Dette felt skal udfyldes"},
        txtNumbersOnly: {required: "Dette felt skal udfyldes"},
        txtPhoneOnly: {required: "Dette felt skal udfyldes"},
        txtAreaCodeOnly: {required: "Dette felt skal udfyldes"},
        txtSimCodeOnly: {required: "Dette felt skal udfyldes"},
        txtCprOnly1: {required: "Dette felt skal udfyldes"},
        txtCprOnly2: {required: "Dette felt skal udfyldes"},
        txtMailOnly: {required: "Dette felt skal udfyldes"}
    },
});

...我从 Lint 收到此错误:“警告:尾随逗号在 ECMA-262 对象初始值设定项中不合法”

有谁知道这是什么意思，我该如何解决？

Answer 1

删除尾随的逗号 - 以下部分末尾的逗号:

 messages: {
        txtTextOnly: {required: "Dette felt skal udfyldes"},
        txtNumbersOnly: {required: "Dette felt skal udfyldes"},
        txtPhoneOnly: {required: "Dette felt skal udfyldes"},
        txtAreaCodeOnly: {required: "Dette felt skal udfyldes"},
        txtSimCodeOnly: {required: "Dette felt skal udfyldes"},
        txtCprOnly1: {required: "Dette felt skal udfyldes"},
        txtCprOnly2: {required: "Dette felt skal udfyldes"},
        txtMailOnly: {required: "Dette felt skal udfyldes"}
    },

在创建对象 {} 或数组 [] 时，您可以使用逗号分隔各个元素。但是这里在最后一项之后有一个额外的逗号，例如 [a, b, c,] - 根据 ECMA-262，这是不允许的。