如何比较NSDictionary与String的值

I have two orgunit_id's, test["orgunit_id"] and API.loginManagerInfo.orgUnit, which I would like to compare. The problem is that the variables have different types. test["orgunit_id"] is value of a NSDictionary and the other one is a String. I've tried several ways to cast it into Integers, but without success.

我有两个orgunit_id，test [“orgunit_id”]和API.loginManagerInfo.orgUnit，我想比较一下。问题是变量有不同的类型。 test [“orgunit_id”]是NSDictionary的值，另一个是String。我已经尝试了几种方法将它转换为Integers，但没有成功。

Code:

码：

if(!orgUnits.isEmpty){
    print(orgUnits) //See at console-output

    for test: NSDictionary in orgUnits {

        println(test["orgunit_id"]) //See at console-output
        println(API.loginManagerInfo.orgUnit) //See at console-output

        if(Int(test["orgunit_id"]? as NSNumber) == API.loginManagerInfo.orgUnit?.toInt()){ // This condition fails
                ...
        }
    }
}

Output:

输出：

[{
    name = Alle;
    "orgunit_id" = "-1";
    shortdescription = Alle;
}, {
    name = "IT-Test";
    "orgunit_id" = 1;
    shortdescription = "";
}]
Optional(-1)
Optional("-1")

Edit: Here's the definition of API.loginManagerInfo.orgUnit: var orgUnit:String?

编辑：这是API.loginManagerInfo.orgUnit的定义：var orgUnit：String？

1 个解决方案

#1

Use if let to safely unwrap your values and typecast the result.

如果让我们安全地展开您的值并对结果进行类型转换，请使用。

If test["orgunit_id"] is an Optional Int and if API.loginManagerInfo.orgUnit is an Optional String:

如果test [“orgunit_id”]是一个Optional Int，并且API.loginManagerInfo.orgUnit是一个可选字符串：

if let testID = test["orgunit_id"] as? Int, let apiIDString = API.loginManagerInfo.orgUnit, let apiID =  Int(apiIDString) {
    if testID == apiID {
        // ...
    }    
}

You may have to adapt this example given what is in your dictionary, but you get the point: safely unwrap the optional value and either typecast it (with if let ... = ... as? ...) or transform it (with Int(...)) before comparing.

您可能必须根据字典中的内容调整此示例，但您明白了这一点：安全地展开可选值并对其进行类型转换（如果让... = ...作为？...）或对其进行转换（与Int（...））比较之前。

#1