ios - 如何快速替换字典数组中的值？

Question

我有字典数组，我试图将其存储在 NSuserdefault 中，但因为它包含 <null>应用程序崩溃，我们可以更换 <null>和 ””？ 有什么办法可以解决这个问题吗？

这是我的字典数组:

var array = (
                            {
                    ClinicID = "<null>";
                    "Patient_SurveyID" = 1956;
                    "Patient_Treatment_PlanID" = "<null>";
                    PhysicianID = "<null>";
                },
                            {
                    ClinicID = "<null>";
                    "Patient_SurveyID" = 1956;
                    "Patient_Treatment_PlanID" = "<null>";
                    PhysicianID = "<null>";
                },
    )

Answer 1

所以你有一个字典数组

let list: [[String:Any]] = []

每个字典的类型都是[String:Any]。

这是将 NSNull 值替换到字典中的代码 “”

let list: [[String:Any] = []

let updatedDict = list.map { (dict) -> [String:Any] in
    let keysWithEmptStringValue = dict.filter { $0.1 is NSNull }.map { $0.0 }
    var dict = dict
    for key in keysWithEmptStringValue {
        dict[key] = ""
    }
    return dict
}

从 NSMutableArray 到 [[String:Any]]

要将 NSMutableArray 转换为 Swift 通用数组，请尝试此代码

let array = NSMutableArray()
let list: [[String:Any]] = array.flatMap { $0 as? [String:Any] }