diff --git a/lib/globals/intex.ts b/lib/globals/intex.ts
new file mode 100644
index 00000000..98a12ce1
--- /dev/null
+++ b/lib/globals/intex.ts
@@ -0,0 +1,3 @@
+/** @namespace Global */
+
+import "./isBrowser";
diff --git a/lib/globals/isBrowser/index.ts b/lib/globals/isBrowser/index.ts
new file mode 100644
index 00000000..f2dff584
--- /dev/null
+++ b/lib/globals/isBrowser/index.ts
@@ -0,0 +1,21 @@
+import * as method from "./method";
+
+declare global {
+  namespace NodeJS {
+    interface Global {
+      isBrowser(): boolean;
+    }
+  }
+
+  const isBrowser: () => boolean;
+}
+
+/**
+ * Determines if the current runtime environment is a browser,
+ * so that front-end modules can run on the server (Node) without throwing errors
+ * @memberof Global
+ * @returns {boolean}
+ * @example
+ * isBrowser(); // false
+ */
+global.isBrowser = method;
diff --git a/lib/globals/isBrowser/method.ts b/lib/globals/isBrowser/method.ts
new file mode 100644
index 00000000..eaa231b6
--- /dev/null
+++ b/lib/globals/isBrowser/method.ts
@@ -0,0 +1,5 @@
+import * as contains from "../../array/contains/method";
+
+const method = () => !contains([typeof window, typeof document], "undefined");
+
+export = method;
diff --git a/lib/globals/isBrowser/test.ts b/lib/globals/isBrowser/test.ts
new file mode 100644
index 00000000..356e6b3e
--- /dev/null
+++ b/lib/globals/isBrowser/test.ts
@@ -0,0 +1,13 @@
+import "./index";
+
+beforeAll(() => {
+  // Jest creates virtual ones !
+  delete (global as any).window;
+  delete (global as any).document;
+});
+
+describe("Global.isBrowser", () => {
+  test("isBrowser() returns false", () => {
+    expect(isBrowser()).toBe(false);
+  });
+});
diff --git a/lib/globals/methods.ts b/lib/globals/methods.ts
new file mode 100644
index 00000000..6fb1c288
--- /dev/null
+++ b/lib/globals/methods.ts
@@ -0,0 +1,5 @@
+import * as isBrowser from "./isBrowser/method";
+
+export {
+  isBrowser,
+};
diff --git a/lib/index.ts b/lib/index.ts
index 7baa8616..ca6b701a 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -2,6 +2,7 @@ import "./array";
 import "./boolean";
 import "./date";
 import "./function";
+import "./globals";
 import "./math";
 import "./number";
 import "./object";
diff --git a/lib/methods.ts b/lib/methods.ts
index b0929c3e..c07a9e8d 100644
--- a/lib/methods.ts
+++ b/lib/methods.ts
@@ -2,6 +2,7 @@ import * as array from "./array/methods";
 import * as boolean from "./boolean/methods";
 import * as date from "./date/methods";
 import * as func from "./function/methods";
+import * as globals from "./globals/methods";
 import * as math from "./math/methods";
 import * as number from "./number/methods";
 import * as object from "./object/methods";
@@ -12,6 +13,7 @@ export {
   boolean,
   date,
   func as function,
+  globals,
   math,
   number,
   object,
diff --git a/lib/object/size/method.ts b/lib/object/size/method.ts
index 3f401e5a..d4833dd5 100644
--- a/lib/object/size/method.ts
+++ b/lib/object/size/method.ts
@@ -1,3 +1,3 @@
-const method = (obj: { [key: string]: any }): number => Object.keys(obj).length;
+const method = (obj: { [key: string]: any }): number => obj.size || obj.length || Object.keys(obj).length;
 
 export = method;
diff --git a/lib/string/base64/method.ts b/lib/string/base64/method.ts
index 789da91c..8345b62d 100644
--- a/lib/string/base64/method.ts
+++ b/lib/string/base64/method.ts
@@ -1,3 +1,3 @@
-const method = (str: string) => new Buffer(str).toString("base64");
+const method = (str: string) => Buffer.from(str).toString("base64");
 
 export = method;
diff --git a/lib/string/base64Decode/method.ts b/lib/string/base64Decode/method.ts
index f61f7e67..727fa0b4 100644
--- a/lib/string/base64Decode/method.ts
+++ b/lib/string/base64Decode/method.ts
@@ -1,3 +1,3 @@
-const method = (str: string) => new Buffer(str, "base64").toString();
+const method = (str: string) => Buffer.from(str, "base64").toString();
 
 export = method;