VSCode single to double quote automatic replace

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 this rule conflicts with electron-vue lint configuration that require singlequote.

I don't have prettier extensions installed (no prettier.singleQuote in my setting)

How to customize VSCode to avoid this?

I dont have prettier extension installed, but after reading the possible duplicate answer I've added from scratch in my User Setting (UserSetting.json, Ctrl+, shortcut):

"prettier.singleQuote": true

A part a green warning (Unknown configuration setting) the single quotes are no more replaced.

I suspect that the prettier extension is not visible but is embedded inside the Vetur extension.

Well, like the guy (@user2982122) mentioned but instead of File go to Code -> Preferences -> Settings, then look for Quote, select Prettier and check both boxes

For projects that use .editorconfig file by default. The formatter will ignore the rules in the settings and use the rules in .editorconfig, then you can either:

• Remove .editorconfig file, and use your VSCode settings.
• Add quote_type = single to the .editorconfig file regarding your file type. You can also set quote_type value to double or auto.

It looks like it is a bug open for this issue: Prettier Bug

None of above solution worked for me. The only thing that worked was, adding this line of code in package.json:

"prettier": {
    "singleQuote": true
  },

From the vuejs/vetur issue page https://github.com/vuejs/vetur/issues/986# This solution worked for me.

In VSCodes settings.json file add this entry

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

please consider .editorconfig overwrites everything, use:

[*]
quote_type = single

Install prettier extension and paste below code in your VSCode settings.json file

 "prettier.useEditorConfig": false,
 "prettier.singleQuote": true

this will ignore your .editorconfig file setting.

What worked for me was setting up the .prettierrc.json config file. Put it to the root of your project with a sample config like this:

{
  "singleQuote": true,
  "trailingComma": "all",
  "tabWidth": 2,
  "semi": true,
  "arrowParens": "always"
}

After triggering the Format Document command, all works just as expected.

Side note: What comes as a bonus with this solution is that each team member gets the same formatting outputs thanks to the present config file.

Correct solution :

I add .prettierrc.js file in my main root project and write

module.exports = {
    singleQuote: true
  };

For newbies like me:

From the menu Nav bar at the top: Select File -> Preferences -> Settings. In the search text box, type in Quote In the filtered list that appears below, look for the gear icon and next to it - "Prettier". Click on check box to enable "Prettier: Single Quote"

Try one of these solutions

1. In vscode settings.json file add this entry "prettier.singleQuote": true
2. In vscode if you have .editorconfig file, add this line under the root [*] symbol quote_type = single
3. In vscode if you have .prettierrc file, add this line

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

quote_type = single

add this inside .editorconfig

# EditorConfig is awesome: https://EditorConfig.org

# top-most EditorConfig file
root = true

[*]
indent_style = space
indent_size = 2
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = false
insert_final_newline = false
quote_type = single

As noted by @attdona the Vetur extension includes prettier.

While you can change the prettier settings, as per the accepted answer, you can also change the formatter for specific regions of a vue component.

Here, for example, I've set Vetur to use the vscode-typescript formatter as it uses single quotes by default:

I had the same issue in vscode. Just create a .prettierrc file in your root directory and add the following json. For single quotes add:

{
  "singleQuote": true
}

For double quotes add:

  {
      "singleQuote": false
  }

in .prettierrc add

{
  "arrowParens": "avoid",
  "semi": false,
  "singleQuote": true
}

After struggling with the issue I found a useful tool. If you click on the Prettier word in the right lower corner you will get the Output window opened. In that window once you run formatting (in my case it is Alt + Shift + F) you will see all the configurations which prettier will use to format the document. So, we can clearly see that specifying the prettier in the prettier.singleQuote is wrong. It should just be singleQuote. Hence, having the .prettierrc file in my user root folder with the following contents produced the desired result:

{
    "trailingComma": "none",
	"useEditorConfig": false,
	"singleQuote": true
}

Also, make sure that you have the Prettier extension installed.

I'm using typescript, for me it got resolved with checking "Tslint integration" flag under prettier settings (in vscode preferences):

There only solution that worked for me: and only for Angular Projects:

Just go into your project ".editorconfig" file and paste 'quote_type = single'. Hope it should work for you as well.

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

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

In my case, the problem was in the escaping \ character inside the string:

message = 'Error argument is not an object, it\'s ' + typeof error

Turning on the avoidEscape option and using double quotes for that string solved the problem:

message = "Error argument is not an object, it's " + typeof error

.eslintrc.js

module.exports = {
  rules : {
    // Other rules...
    'quotes' : ['error', 'single', {'avoidEscape' : true}],
  }
}

You can use this in settings.json

"javascript.preferences.quoteStyle": "single"

> It works for me to check single quote in Prettier as well > tslint.autoFixOnSave as true

Use this extension.

https://marketplace.visualstudio.com/items?itemName=BriteSnow.vscode-toggle-quotes

cmd ' (ctrl ' on win/Linux) will cycle among ' " `

For JSX use:

{"jsxSingleQuote": false}

Well for me both options solved the issue:

1. By adding inside the .prettierrc - "singleQuote": true

2. Or by adding following inside the package.json -> "prettier": { "singleQuote": true }

Though I tried also adding .prettierrc.js and have following

module.exports = { singleQuote: true };

This didn't worked.

I had a lot of issues controlling linting and prettier formating. I had rules for eslint on for prettier like

"prettier/prettier": [
      "error",
      { "singleQuote": true, "trailingComma": "none" }
    ],

and rules inside .prettierrc file

{
  "tabWidth": 2
}

But my .prettierrc file was not getting processed. My fix was installing prettier as a package on dev dependency. So the solution that worked for me was installing all these packages eslint-config-prettier eslint-plugin-prettier and prettier.

This works for me : try right click on the current document and choose "format document with " , and choose your own format extension for the document. :)