TypeScript intellisense: Suggest to prepend "this." if I typed the name of a class member

[mjbvz]

From @Duckers on January 16, 2018 11:47

Apologies if this is the wrong repo for Intellisense suggestions, if so, please redirect me.

• VSCode Version: 1.19.1
• OS Version: MacOS 10.13

A very common scenario when writing TypeScript (coming from C#) is that I forget to prepend this. when I want to reference a member of the current class. My muscle memory also relies a lot on the intellisense to complete the names of members. This very often results in the code completer completing an identifier with a very unlikely option from the global namespace, instead of simply prepending this. to refer to a local member.

Example:

import { Post } from 'Server/Boost/Post'

export default class PostComponent {
    Options = {} as Post.Post

    get hasImage() {
        return Opt<caret here, pressing enter>
    }
}

This ends up completing as HTMLOptionElement or something similar, when this.Options would have been a much more probable intention.

Copied from original issue: microsoft/vscode#41668

[mjbvz]

Interesting idea. Perhaps we can leverage the new insertText property on completion items for this

[mhegazy]

seems like a nice addition to the insertText support we have already.