When working in TypeScript in Visual Studio Code, the import suggestion on a type (triggered by space + period) will generate an import using double quotes.
Our TypeScri
As of VSCode 1.10, this is (sadly) not possible yet. But is an issue for a lof of the users as it seems. The VSCode theme is aware of this issue and you can follow this to know when it is implemented: https://github.com/Microsoft/TypeScript/issues/13270
Update June 2018
Since VSCode 1.24 (June 2018) there is an option for this!
"typescript.preferences.quoteStyle": "single"
For more info see:
https://code.visualstudio.com/updates/v1_24#_preferences-for-auto-imports-and-generated-code