Changing to file level use strict statement

lib/helpers/buildUrl.js

@@ -1,7 +1,8 @@
+'use strict';
+
 var utils = require('./../utils');
 
 function encode(val) {
-  'use strict';
   return encodeURIComponent(val).
     replace(/%40/gi, '@').
     replace(/%3A/gi, ':').
@@ -18,7 +19,6 @@ function encode(val) {
  * @returns {string} The formatted url
  */
 module.exports = function buildUrl(url, params) {
-  'use strict';
   if (!params) {
     return url;
   }

lib/helpers/cookies.js

@@ -1,8 +1,9 @@
+'use strict';
+
 var utils = require('./../utils');
 
 module.exports = {
   write: function write(name, value, expires, path, domain, secure) {
-    'use strict';
     var cookie = [];
     cookie.push(name + '=' + encodeURIComponent(value));
 
@@ -26,13 +27,11 @@ module.exports = {
   },
 
   read: function read(name) {
-    'use strict';
     var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
     return (match ? decodeURIComponent(match[3]) : null);
   },
 
   remove: function remove(name) {
-    'use strict';
     this.write(name, '', Date.now() - 86400000);
   }
 };

lib/helpers/deprecatedMethod.js

@@ -1,3 +1,5 @@
+'use strict';
+
 /**
  * Supply a warning to the developer that a method they are using
  * has been deprecated.
@@ -7,9 +9,6 @@
  * @param {string} [docs] The documentation URL to get further details
  */
 module.exports = function deprecatedMethod(method, instead, docs) {
-  /*eslint-env node*/
-  'use strict';
-
   try {
     console.warn(
       'DEPRECATED method `' + method + '`.' +

lib/helpers/parseHeaders.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var utils = require('./../utils');
 
 /**
@@ -14,7 +16,6 @@ var utils = require('./../utils');
  * @returns {Object} Headers parsed into an object
  */
 module.exports = function parseHeaders(headers) {
-  'use strict';
   var parsed = {}, key, val, i;
 
   if (!headers) { return parsed; }

lib/helpers/spread.js

@@ -1,3 +1,5 @@
+'use strict';
+
 /**
  * Syntactic sugar for invoking a function and expanding an array for arguments.
  *
@@ -19,7 +21,6 @@
  * @returns {Function}
  */
 module.exports = function spread(callback) {
-  'use strict';
   return function (arr) {
     callback.apply(null, arr);
   };

lib/helpers/transformData.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var utils = require('./../utils');
 
 /**
@@ -9,7 +11,6 @@ var utils = require('./../utils');
  * @returns {*} The resulting transformed data
  */
 module.exports = function transformData(data, headers, fns) {
-  'use strict';
   utils.forEach(fns, function (fn) {
     data = fn(data, headers);
   });

lib/helpers/urlIsSameOrigin.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var utils = require('./../utils');
 var msie = /(msie|trident)/i.test(navigator.userAgent);
 var urlParsingNode = document.createElement('a');
@@ -10,7 +12,6 @@ var originUrl;
  * @returns {Object}
  */
 function urlResolve(url) {
-  'use strict';
   var href = url;
 
   if (msie) {
@@ -45,7 +46,6 @@ originUrl = urlResolve(window.location.href);
  * @returns {boolean} True if URL shares the same origin, otherwise false
  */
 module.exports = function urlIsSameOrigin(requestUrl) {
-  'use strict';
   var parsed = (utils.isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;
   return (parsed.protocol === originUrl.protocol &&
         parsed.host === originUrl.host);