Added @typescript-eslint/explicit-member-accessibility rule

.eslintrc.js

@@ -50,6 +50,7 @@ module.exports = {
 		'react/jsx-uses-vars': 'error',
 		'no-unused-vars': ['error', { 'argsIgnorePattern': '^_' }],
 		'@typescript-eslint/no-unused-vars': ['error', { 'argsIgnorePattern': '^_' }],
+		'@typescript-eslint/explicit-member-accessibility': 'off',
 		'no-constant-condition': 0,
 		'no-prototype-builtins': 0,
 		// This error is always a false positive so far since it detects
@@ -121,4 +122,15 @@ module.exports = {
 		'react-hooks',
 		'import',
 	],
+	'overrides': [
+		{
+			// enable the rule specifically for TypeScript files
+			'files': ['*.ts', '*.tsx'],
+			'rules': {
+				// Warn only because it would make it difficult to convert JS classes to TypeScript, unless we
+				// make everything public which is not great. New code however should specify member accessibility.
+				'@typescript-eslint/explicit-member-accessibility': ['warn'],
+			},
+		},
+	],
 };