Vendor isBlob package for now to get rid of arrow function

Author: ctimmerm

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Colin Timmermans
+Copyright (c) Colin Timmermans
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

package-lock.json

@@ -54,7 +54,6 @@
   },
   "dependencies": {
     "fast-deep-equal": "^3.1.3",
-    "is-blob": "^2.1.0",
     "is-buffer": "^2.0.5"
   },
   "bundlesize": [

package.json

@@ -0,0 +1,28 @@
+/*!
+ * MIT License
+ *
+ * Copyright (c) Sindre Sorhus <[email protected]> (https://sindresorhus.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
+ * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit
+ * persons to whom the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+ * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+function isBlob(value) {
+  if (typeof Blob === 'undefined') {
+    return false;
+  }
+
+  return value instanceof Blob || Object.prototype.toString.call(value) === '[object Blob]';
+}
+
+module.exports = isBlob;

src/is_blob.js

@@ -2,7 +2,7 @@
 
 var isEqual = require("fast-deep-equal");
 var isBuffer = require("is-buffer");
-var isBlob = require("is-blob");
+var isBlob = require("./is_blob");
 var toString = Object.prototype.toString;
 
 function find(array, predicate) {