Avoid referencing unbound methods which may cause unintentional scoping of `this` error when...

I have created a method map below as per this Stackoverflow question here to help me dynamically call a static method. However, I keep running into the following error:

Avoid referencing unbound methods which may cause unintentional scoping of this
​

How do I fix this?

addCourseContentElementMethodMap = {
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_AUDIO]:
CourseContentElementAudioService.addCourseContentElement,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_BUTTON]:
CourseContentElementButtonService.addCourseContentElementButton,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_CODE_FIDDLE]:
CourseContentElementCodeService.addCourseContentElementCodeFiddle,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_CODE_MARKDOWN]:
CourseContentElementCodeService.addCourseContentElementCodeMarkdown,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_CODE_REPL]:
CourseContentElementCodeService.addCourseContentElementCodeRepl,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_DOCUMENT]:
CourseContentElementDocumentService.addCourseContentElement,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_EDITOR]:
CourseContentElementEditorService.addCourseContentElement,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_EMBED_TWEET]:
CourseContentElementEmbedService.addCourseContentElementEmbedTweet,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_EMBED_YOUTUBE]:
CourseContentElementEmbedService.addCourseContentElementEmbedYoutube,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_IMAGE]:
CourseContentElementImageService.addCourseContentElement,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_QUIZ]:
CourseContentElementQuizService.addCourseContentElement,
[CourseContentElementMethodMap.ADD_COURSE_CONTENT_ELEMENT_VIDEO]:
CourseContentElementVideoService.addCourseContentElement,
};


It's happening on every line of the above:

55:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
57:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
59:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
61:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
63:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
65:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
67:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
69:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
71:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
73:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
75:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method
77:7 error Avoid referencing unbound methods which may cause unintentional scoping of `this` @typescript-eslint/unbound-method


The methods in question are here:

export class CourseContentElementAudioService {
constructor(private courseContentElementService: CourseContentElementsService) {}
}


An example of the one of the methods:

static addCourseContentElement(
courseContents: ICourseContent[],
selectedCourseContentElementUid: string,
selectedCourseContentUid: string | undefined
): ICourseContent[] {
return CourseContentElementsService.addCourseContentElement(
courseContents,
selectedCourseContentUid,
{
uid: selectedCourseContentElementUid,
url: initialState.courseMedia.audio[0].url,
},
CourseContentElementType.AUDIO
);
}

Continue reading...