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this is any type in class property assignment to function #17026

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this is any type in class property assignment to function#17026
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Awaiting More FeedbackThis means we'd like to hear from more people who would be helped by this featureDomain: JavaScriptThe issue relates to JavaScript specificallySuggestionAn idea for TypeScriptVS Code TrackedThere is a VS Code equivalent to this issue

Description

@mjbvz
Matt Bierner (mjbvz)
opened on Jul 7, 2017

From microsoft/vscode#30003

TypeScript Version: 2.4.1

Code

 class AppComponent {
    items = [ 'Angular 4', 'React', 'Underscore'];

    foo = function () {
        return this.items
    }
}

Expected behavior:
The type of this in foo should be AppComponent

Actual behavior:
The type of this in foo is any

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