fix eslint and get all tests passing

.eslintrc

@@ -1,19 +1,10 @@
 {
-  "extends": ["airbnb-base"],
-  "parser": "@babel/eslint-parser",
-  "parserOptions": {
-    "ecmaVersion": 2019,
-    "sourceType": "module"
+  "env": {
+    "node": true
   },
-  "rules": {
-    "no-param-reassign": "off",
-    "no-plusplus": "off",
-    "no-shadow": "off",
-    "no-underscore-dangle": "off",
-    "no-use-before-define": "off",
-    "import/order": "off",
-    "implicit-arrow-linebreak": "off",
-    "object-curly-newline": "off",
-    "operator-linebreak": "off"
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "commonjs"
   }
 }

__tests__/__fixtures__/complex/shallow-iterable/output.js

@@ -1,16 +1,20 @@
-let _determination = true;
-for (let _key = 0, _length = item.length, _v, _result; _key < _length; ++_key) {
-  _v = item[_key];
-  _result = typeof _v === 'string';
-  if (!_result) {
-    _determination = false;
-    break;
-  }
-}
 const _length2 = array.length;
-const _results2 = Array(_length2);
+const _results = Array(_length2);
 for (let _key2 = 0, _item; _key2 < _length2; ++_key2) {
   _item = array[_key2];
-  _results2[_key2] = _determination;
+  let _determination = true;
+  for (
+    let _key3 = 0, _length3 = _item.length, _v2, _result3;
+    _key3 < _length3;
+    ++_key3
+  ) {
+    _v2 = _item[_key3];
+    _result3 = typeof _v2 === 'string';
+    if (!_result3) {
+      _determination = false;
+      break;
+    }
+  }
+  _results[_key2] = _determination;
 }
-const allStrings = _results2;
+const allStrings = _results;

__tests__/__runtime__/reduce.js

@@ -35,19 +35,6 @@ const DECREMENTING_ARRAY_RESULT = ARRAY.reduceRight(isEven, 10);
 const BAD_OBJECT_RESULT = Object.assign({}, OBJECT);
 const OBJECT_RESULT = Object.values(OBJECT).reduce(isEven, 10);
 
-console.log(
-  reduceRight(ARRAY, (total, value) =>
-    value % 2 === 0 ? total + value : total,
-  ),
-  OBJECT_RESULT,
-  isEqual(
-    reduceRight(ARRAY, (total, value) =>
-      value % 2 === 0 ? total + value : total,
-    ),
-    OBJECT_RESULT,
-  ),
-);
-
 module.exports = {
   cached: {
     decrementing: {

__tests__/runtime.test.js

@@ -30,12 +30,6 @@ const TRANSFORMED_FILES = fs.readdirSync(TEST_FILES).reduce((tests, file) => {
 
 describe('runtime tests', () => {
   for (const fn in TRANSFORMED_FILES) {
-    if (fn === 'errors') {
-      console.log('foo');
-
-      continue;
-    }
-
     const file = TRANSFORMED_FILES[fn];
 
     describe(fn, () => {