TypeScript Build Error : Property does not exist on type 'IStateParamsService'

Foyzul Karim Published at Dev

Foyzul Karim

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.

Ethnar

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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edited at2021-02-24

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