fix(core): make isBuffer browser compliant

Closes: #2480

packages/core/src/utils/objects/isBuffer.spec.ts

@@ -1,9 +1,11 @@
-import {isBuffer} from "./isBuffer";
+import {isBuffer, isUint8Array} from "./isBuffer";
 
 describe("isBuffer", () => {
   it("should return true", () => {
     expect(isBuffer(Buffer.from(""))).toBeTruthy();
     expect(isBuffer(Buffer)).toBeTruthy();
+    expect(isUint8Array(Uint8Array)).toBeTruthy();
+    expect(isUint8Array(Uint8Array.from([0, 1]))).toBeTruthy();
   });
   it("should return false", () => {
     expect(isBuffer({})).toBeFalsy();

packages/core/src/utils/objects/isBuffer.ts

@@ -1,8 +1,19 @@
+import {nameOf} from "./nameOf";
+
 /**
  * Tests to see if the object is Buffer
  * @param target
  * @returns {boolean}
  */
 export function isBuffer(target: any): target is Buffer {
-  return !!(target && (target === Buffer || target instanceof Buffer));
+  // is Class
+  if (target && "isBuffer" in target && typeof target.isBuffer === "function") {
+    return true;
+  }
+
+  return isUint8Array(target);
+}
+
+export function isUint8Array(target: any): target is Uint8Array {
+  return !!(target && (target === Uint8Array || target instanceof Uint8Array));
 }

packages/engines/package.json

@@ -95,4 +95,4 @@
     "view"
   ],
   "peerDependencies": {}
-}
+}