On Webstorm 2017.1, do the following:
Go to File -> Settings -> Typescript
Select 'Punctuation' tab
Change use 'double' to 'single'. (additionally, you can change quotes 'in new code' to 'always')
On Webstorm 2017.1, do the following:
Go to File -> Settings -> Typescript
Select 'Punctuation' tab
Change use 'double' to 'single'. (additionally, you can change quotes 'in new code' to 'always')