.eslintrc.json

{
	"$schema": "https://json.schemastore.org/eslintrc.json",
	"root": true,
	// "env": {
	// 	"browser": true,
	// 	"commonjs": true,
	// 	"node": true
	// },
	"extends": [
		"eslint:recommended",
		"plugin:@typescript-eslint/recommended-type-checked",
		"plugin:@typescript-eslint/strict-type-checked",
		"plugin:@typescript-eslint/stylistic-type-checked",
		"plugin:promise/recommended"
	],

	"globals": {
		"Atomics": "readonly",
		"SharedArrayBuffer": "readonly"
	},
	"parser": "@typescript-eslint/parser",
	"parserOptions": {
		"project": "./tsconfig.json",
		"tsconfigRootDir": "."
	// 	"ecmaVersion": 2020,
	// 	"sourceType": "module",
	// 	"project": "./tsconfig.json"
	},
	"plugins": [
		"@stylistic",
		"@typescript-eslint",
		"promise"
	],
	"ignorePatterns": [
		"dummy-ext/",
		"test_projects/",
		"esbuild.js"
	],
	"rules": {
		/****** @typescript-eslint/recommended-type-checked *****/
	    // "no-return-await": "off", // deprecated; must be disabled to avoid conflict with "@typescript-eslint/return-await"
		// "@typescript-eslint/return-await": "error",
		// "require-await": "error",
		// "@typescript-eslint/require-await": "error",

		"@stylistic/indent": [ "error", "tab" ],
		"@stylistic/comma-spacing": [ "warn", { "before": false, "after": true }],
		"@stylistic/no-extra-parens": "warn",
		"@typescript-eslint/no-restricted-types": [ "error", {
			"types": {
				"Object": "Use {} instead.",
				"String": "Use 'string' instead.",
				"Number": "Use 'number' instead.",
				"Boolean": "Use 'boolean' instead."
			}
		}],
		"@typescript-eslint/naming-convention": [ "error", {
			"selector": "interface",
			"format": [ "PascalCase" ],
			"custom": { "regex": "^I[A-Z]", "match": true }
		}],
		"@typescript-eslint/no-confusing-non-null-assertion": "warn",
		"@typescript-eslint/no-floating-promises": [ "error", { "checkThenables": true } ],
		"@typescript-eslint/no-misused-promises": "error",
		"@typescript-eslint/no-non-null-assertion": 0, // strict-type-checked="error"
		"@typescript-eslint/no-unnecessary-condition": 0, // strict-type-checked="error"
		"no-unused-vars": "off", // must be disabled to avoid conflict with "@typescript-eslint/no-unused-vars"
		"@typescript-eslint/no-unused-vars": [ // strict-type-checked="error"
			"warn", {
				"argsIgnorePattern": "^_",
				"vars": "all",
				"args": "none",
				"ignoreRestSiblings": false
			}
		],
		"@typescript-eslint/prefer-readonly": "warn",
		"@typescript-eslint/restrict-plus-operands": "off",
		"@typescript-eslint/switch-exhaustiveness-check": "warn",

		"promise/catch-or-return": "warn",
		"promise/no-callback-in-promise": "off",
		"promise/always-return": [ "warn",  { "ignoreLastCallback": true } ],

		// "no-await-in-loop": "warn",
		"no-console": "warn",
		"no-empty": "warn",
		"no-mixed-spaces-and-tabs": ["error", "smart-tabs"],
		"no-trailing-spaces": [ "error", { "skipBlankLines": false }],
		"prefer-promise-reject-errors": "error",
		"quotes": ["warn", "single"],
		"semi": [ "error", "never"],
		"space-before-blocks": [ "error", "always"],
		"space-before-function-paren": ["warn", "always"],
		"space-in-parens": [ "warn", "never"],
		"spaced-comment": [ "error", "always", { "markers": [ "/" ] }]
	}

}