TypeScript 构建错误:类型“IStateParamsService"上不存在属性 [英] TypeScript Build Error : Property does not exist on type 'IStateParamsService'

问题描述

我的客户项目几乎都在使用 TypeScript.目前我正面临一个技术问题.

在我的 HTML 中，我有一个如下所示的锚标记:

 
但是如果我删除 IF 块，那么我会在开发人员控制台中获取日志，如下所示.
我必须获得课程 ID 属性和值才能继续.否则我需要用我不想要的纯 angularjs 编写这个控制器.谢谢.
解决方案
Typescript 更喜欢通过括号表示法 [] 显式地处理地图.
如果你想从类似地图的对象中获取一个字段，你应该使用方括号而不是点表示法:
if (this.param['courseId'] === "00000....0000") {//.. 其余代码
这应该可以解决您面临的紧迫问题.
I am using TypeScript almost entire of my client project. Currently I am facing a technical problem. 

In my HTML, I have an anchor tag like below : 
    <a class="btn btn-default mrm" ui-sref="course-detail({courseId: '{{c.Id}}'})">Details</a>
In my course detail controller, I am getting the values in the stateparam variable. But if I want to access my 'courseId' from that variable, it is giving me build error. Please check the image below.



But if I remove the IF block, then I am getting the log in the developer console like below. 



I must get the course Id property and value to proceed. Otherwise I need to code this controller in pure angularjs which I don't want. Thanks. 
解决方案
Typescript prefers to work on maps explicitly through brackets notation [].

If you want to get a field out of a map-like object you should use square brackets instead of dot notation:
if (this.param['courseId'] === "00000....0000") {
  //.. rest of the code
That should solve the immediate issue you're facing.

                        
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