Adding ESLint

lib/utils.js

@@ -1,3 +1,4 @@
+/*global toString:true*/
 // utils is a library of generic helper functions non-specific to axios
 
 var toString = Object.prototype.toString;
@@ -9,6 +10,7 @@ var toString = Object.prototype.toString;
  * @returns {boolean} True if value is an Array, otherwise false
  */
 function isArray(val) {
+  'use strict';
   return toString.call(val) === '[object Array]';
 }
 
@@ -19,6 +21,7 @@ function isArray(val) {
  * @returns {boolean} True if value is an ArrayBuffer, otherwise false
  */
 function isArrayBuffer(val) {
+  'use strict';
   return toString.call(val) === '[object ArrayBuffer]';
 }
 
@@ -29,6 +32,7 @@ function isArrayBuffer(val) {
  * @returns {boolean} True if value is an FormData, otherwise false
  */
 function isFormData(val) {
+  'use strict';
   return toString.call(val) === '[object FormData]';
 }
 
@@ -39,6 +43,7 @@ function isFormData(val) {
  * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
  */
 function isArrayBufferView(val) {
+  'use strict';
   if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
     return ArrayBuffer.isView(val);
   } else {
@@ -53,6 +58,7 @@ function isArrayBufferView(val) {
  * @returns {boolean} True if value is a String, otherwise false
  */
 function isString(val) {
+  'use strict';
   return typeof val === 'string';
 }
 
@@ -63,6 +69,7 @@ function isString(val) {
  * @returns {boolean} True if value is a Number, otherwise false
  */
 function isNumber(val) {
+  'use strict';
   return typeof val === 'number';
 }
 
@@ -73,6 +80,7 @@ function isNumber(val) {
  * @returns {boolean} True if the value is undefined, otherwise false
  */
 function isUndefined(val) {
+  'use strict';
   return typeof val === 'undefined';
 }
 
@@ -83,6 +91,7 @@ function isUndefined(val) {
  * @returns {boolean} True if value is an Object, otherwise false
  */
 function isObject(val) {
+  'use strict';
   return val !== null && typeof val === 'object';
 }
 
@@ -93,6 +102,7 @@ function isObject(val) {
  * @returns {boolean} True if value is a Date, otherwise false
  */
 function isDate(val) {
+  'use strict';
   return toString.call(val) === '[object Date]';
 }
 
@@ -103,6 +113,7 @@ function isDate(val) {
  * @returns {boolean} True if value is a File, otherwise false
  */
 function isFile(val) {
+  'use strict';
   return toString.call(val) === '[object File]';
 }
 
@@ -113,6 +124,7 @@ function isFile(val) {
  * @returns {boolean} True if value is a Blob, otherwise false
  */
 function isBlob(val) {
+  'use strict';
   return toString.call(val) === '[object Blob]';
 }
 
@@ -123,6 +135,7 @@ function isBlob(val) {
  * @returns {String} The String freed of excess whitespace
  */
 function trim(str) {
+  'use strict';
   return str.replace(/^\s*/, '').replace(/\s*$/, '');
 }
 
@@ -139,6 +152,7 @@ function trim(str) {
  * @param {Function} fn The callback to invoke for each item
  */
 function forEach(obj, fn) {
+  'use strict';
   // Don't bother if no value provided
   if (obj === null || typeof obj === 'undefined') {
     return;
@@ -154,7 +168,7 @@ function forEach(obj, fn) {
 
   // Iterate over array values
   if (isArrayLike) {
-    for (var i=0, l=obj.length; i<l; i++) {
+    for (var i = 0, l = obj.length; i < l; i++) {
       fn.call(null, obj[i], i, obj);
     }
   }
@@ -185,7 +199,8 @@ 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, ...*/) {
+  'use strict';
   var result = {};
   forEach(arguments, function (obj) {
     forEach(obj, function (val, key) {