Jshint - 變量已經定義並且缺少javascript對象的分號

Question

我在一個函數中將一個reason變量定義為javascript對象，然后使用該對象定義屬性如下：

$scope.upsertReason = function() {
    var reason = {},
        reason.reasons = [],
        reason.scholarships = [];
}

我不知道為什么我總是遇到以下錯誤：

412 |            reason.reasons = [],
                       ^ 'reason' is already defined.
412 |            reason.reasons = [],
                       ^ Missing semicolon.
412 |            reason.reasons = [],
                       ^ Expected an identifier and instead saw '.'.
412 |            reason.reasons = [],
                       ^ Expected an assignment or function call and instead saw an expression.
412 |            reason.reasons = [],
                        ^ Missing semicolon.
413 |            reason.scholarships = [];
                                        ^ Expected an assignment or function

我已經驗證我沒有在代碼中的任何其他地方定義reason變量。 任何幫助，將不勝感激。

Answer 1

您不能使用var語句聲明對象的屬性，因為var語句要求變量名稱不包含無效字符。 並且. 絕對是標識符名稱的無效字符。 因此，您無法聲明名為reason.reasons或reason.scholarships的新變量。

你應該聲明reason

var reason = {
    reasons: [],
    scholarships = []
};

Answer 2

就像thefourtheye所說，你可以這樣做：

var reason = {
    reasons: [],
    scholarships = []
};

或者，如果您想單獨完成所有操作，您可以：

var reason = {};
reason.reasons = [];
reason.scholarships = [];