add eslint checks - fixes #4

.eslintignore

@@ -0,0 +1,11 @@
+# don't ever lint node_modules
+node_modules
+# don't lint build output (make sure it's set to your correct build folder name)
+lib
+# don't lint nyc coverage output
+coverage
+# test fixtures
+test/__fixtures__
+
+/*.js
+/*.ts

.eslintrc.js

@@ -0,0 +1,17 @@
+module.exports = {
+    root: true,
+    parser: '@typescript-eslint/parser',
+    plugins: [
+        '@typescript-eslint',
+    ],
+    extends: [
+        'eslint:recommended',
+        'plugin:@typescript-eslint/eslint-recommended',
+        'plugin:@typescript-eslint/recommended',
+    ],
+    rules: {
+        '@typescript-eslint/no-var-requires': 0,
+        '@typescript-eslint/ban-ts-ignore': 0,
+        '@typescript-eslint/no-namespace': 1
+    }
+};

jest.config.js

@@ -10,10 +10,10 @@ module.exports = {
     collectCoverage: true,
     coverageThreshold: {
         global: {
-            branches: 1,
-            functions: 1,
-            lines: 1,
-            statements: 1
+            branches: 48,
+            functions: 56,
+            lines: 65,
+            statements: 65
         }
     },
     testEnvironment: 'node',