@@ -791,7 +791,7 @@ function openSync(path, flags, mode) {
  */
 function openAsBlob(path, options = kEmptyObject) {
   validateObject(options, 'options');
-  const type = options.type || '';
+  const { type = '' } = options;
   validateString(type, 'options.type');
 
   const h = vfsState.handlers;
@@ -817,7 +817,7 @@ function openAsBlob(path, options = kEmptyObject) {
  */
 function openAsBlobSync(path, options = kEmptyObject) {
   validateObject(options, 'options');
-  const type = options.type || '';
+  const { type = '' } = options;
   validateString(type, 'options.type');
   path = getValidatedPath(path);
 
 
@@ -23,9 +23,14 @@ assert.throws(() => fs.openAsBlobSync(1), {
 assert.throws(() => fs.openAsBlobSync(testfile, null), {
   code: 'ERR_INVALID_ARG_TYPE',
 });
-assert.throws(() => fs.openAsBlobSync(testfile, { type: 1 }), {
-  code: 'ERR_INVALID_ARG_TYPE',
-});
+for (const type of [1, 0, false, null, NaN, {}]) {
+  assert.throws(() => fs.openAsBlobSync(testfile, { type }), {
+    code: 'ERR_INVALID_ARG_TYPE',
+  });
+  assert.throws(() => fs.openAsBlob(testfile, { type }), {
+    code: 'ERR_INVALID_ARG_TYPE',
+  });
+}
 assert.throws(() => fs.openAsBlobSync(missing), {
   code: 'ENOENT',
   syscall: 'stat',