coc-settings.json

{
	"prettier": {
		"arrowParens": "always",
		"bracketSpacing": true,
		"embeddedLanguageFormatting": "auto",
		"htmlWhitespaceSensitivity": "css",
		"insertPragma": false,
		"jsxBracketSameLine": false,
		"jsxSingleQuote": false,
		"printWidth": 80,
		"proseWrap": "preserve",
		"quoteProps": "as-needed",
		"requirePragma": false,
		"semi": true,
		"singleQuote": false,
		"tabWidth": 3,
		"trailingComma": "es5",
		"useTabs": true,
		"vueIndentScriptAndStyle": false
	},
	"coc.preferences.formatOnSaveFiletypes": [
		"css",
		"hmtl",
		"json",
		"javascript",
		"javascriptreact",
		"scss"
	]
}