Using more strict eslint rules

lib/utils.js

@@ -43,11 +43,13 @@ function isFormData(val) {
  * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
  */
 function isArrayBufferView(val) {
+  var result;
   if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
-    return ArrayBuffer.isView(val);
+    result = ArrayBuffer.isView(val);
   } else {
-    return (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
+    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
   }
+  return result;
 }
 
 /**
@@ -171,17 +173,17 @@ function forEach(obj, fn) {
 
   // Force an array if not already something iterable
   if (typeof obj !== 'object' && !isArray(obj)) {
+    /*eslint no-param-reassign:0*/
     obj = [obj];
   }
 
-  // Iterate over array values
   if (isArray(obj)) {
+    // Iterate over array values
     for (var i = 0, l = obj.length; i < l; i++) {
       fn.call(null, obj[i], i, obj);
     }
-  }
-  // Iterate over object keys
-  else {
+  } else {
+    // Iterate over object keys
     for (var key in obj) {
       if (obj.hasOwnProperty(key)) {
         fn.call(null, obj[key], key, obj);
@@ -207,11 +209,13 @@ function forEach(obj, fn) {
  * @param {Object} obj1 Object to merge
  * @returns {Object} Result of all merge properties
  */
-function merge(/*obj1, obj2, obj3, ...*/) {
+function merge(/* obj1, obj2, obj3, ... */) {
   var result = {};
-  var assignValue = function (val, key) { result[key] = val; };
-  var length = arguments.length;
-  for (var i = 0; i < length; i++) {
+  function assignValue(val, key) {
+    result[key] = val;
+  }
+
+  for (var i = 0, l = arguments.length; i < l; i++) {
     forEach(arguments[i], assignValue);
   }
   return result;