尾隨逗號問題，javascript

Question

我正在努力讓我的jQuery在IE7中工作，當我發現以下內容時：

$(".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"}
    },
});

...我從Lint得到這個錯誤： “警告：尾隨逗號在ECMA-262對象初始值設定項中不合法”

有誰知道這意味着什么，我該如何解決？

Answer 1

刪除尾隨逗號 - 以下部分末尾的逗號：

 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"}
    },

在創建對象{}或數組[] ，可以使用逗號分隔各個元素。 但是這里有一個額外的逗號，如[a, b, c,]之后的最后一項 - 根據ECMA-262不允許。

Answer 2

底部附近的額外逗號：

$(".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"}
    }, //<--- this one!!!!
});

Answer 3

是不是在談論：

    }, // This comma here?
}); 

在倒數第二行？

Answer 4

從最后一行刪除最后一個逗號：

$(".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"}
    }
});

Answer 5

我知道這是在不久前問的，但這可能會有所幫助。 如果您通過JSLint運行JavaScript，它將告訴您是否有任何這些“額外的逗號”。