VSCode single to double quote automatic replace

Question

When I execute a Format Document command on a Vue Component.vue file VSCode replace all single quoted string with double quoted string.

In my specific case

Answer 1

I added file called .prettierrc in my project folder. File content:

{
    "singleQuote": true,
    "vetur.format.defaultFormatterOptions": {
        "prettier": {
            "singleQuote": true
        }
    }
}