Question

提供以下代码：

  export function objToStr(object: object): string {

    let str = [];

    for (let p in object) {
      if (object.hasOwnProperty(p)) {
        str.push(encodeURIComponent(p) + "=" + encodeURIComponent(object[p]))
      }
    }


    return str.join("&")
  }

我从object[p]得到了错误：

Element implicitly has an 'any' type because type '{}' has no index signature. [7017]

我尝试过

 encodeURIComponent((<any>object[p]))

 encodeURIComponent(object[p]: any)

但是我仍然得到错误。我发现键入所有内容都非常混乱，那里有太多类型。

如果有人可以告诉我Typescript在那儿想要我什么，那将有很大帮助，这是最后一条错误消息，然后我将我的代码形式从JS切换到TS。

编辑

我不确定是否在做什么以及代码如何对此做出反应，因此我不得不添加"noImplicitAny": true来测试设置。

将其设置为false我现在得到：

Argument of type 'string' is not assignable to parameter of type 'never'. [2345]用于部分现场str.push

Answer 1

出现错误是因为tsconfig.json中有async Task TryGetLocationAsync() { if ((int)Build.VERSION.SdkInt < 23) { await GetLocationAsync(); return; } await GetLocationPermissionAsync(); } readonly string[] PermissionsLocation = { Manifest.Permission.AccessCoarseLocation, Manifest.Permission.AccessFineLocation }; const int RequestLocationId = 0; async Task GetLocationPermissionAsync() { //Check to see if any permission in our group is available, if one, then all are const string permission = Manifest.Permission.AccessFineLocation; if (CheckSelfPermission(permission) == (int)Permission.Granted) { await GetLocationAsync(); return; } //need to request permission if (ShouldShowRequestPermissionRationale(permission)) { Android.Content.Context c = Forms.Context; new Android.App.AlertDialog.Builder(c) .SetTitle("Location access is required.") .SetMessage("Show settings to enable?") .SetPositiveButton( "OK", (sender, e) => { RequestPermissions(PermissionsLocation, RequestLocationId); }) .SetNegativeButton("Cancel", (sender, e) => { (sender as Android.App.AlertDialog).Hide(); }) .Show(); return; } //Finally request permissions with the list of permissions and Id RequestPermissions(PermissionsLocation, RequestLocationId); }。错误提示，将索引签名添加到compilerOptions.noImplicitAny = true变量中：

object

即let object: { [index: string]: any } = {}; let str: string[] = [];将被明确指定。

如何为对象的值分配索引签名？

1 个答案: