fibjs
diff --git a/‎fibjs/src/util/util_format.cpp
Lines changed: 4 additions & 2 deletions b/‎fibjs/src/util/util_format.cpp
Lines changed: 4 additions & 2 deletions
diff --git a/‎test/util_test.js
Lines changed: 1 addition & 1 deletion b/‎test/util_test.js
Lines changed: 1 addition & 1 deletion
@@ -90,9 +90,11 @@ void symbol_format(Isolate* isolate, StringBuffer& strBuffer, v8::Local<v8::Valu
 
 void key_format(Isolate* isolate, StringBuffer& strBuffer, v8::Local<v8::Value> v, bool color)
 {
-    if (v->IsSymbol())
+    if (v->IsSymbol()) {
+        strBuffer.append("[");
         symbol_format(isolate, strBuffer, v, color);
-    else
+        strBuffer.append("]");
+    } else
         string_format(isolate, strBuffer, v);
 }
 
 
@@ -851,7 +851,7 @@ describe('util', () => {
             assert.equal(util.format(Symbol('debug')), 'Symbol(debug)');
             const o = {};
             o[Symbol('debug')] = 100;
-            assert.equal(util.format(o), '{\n  Symbol(debug): 100\n}');
+            assert.equal(util.format(o), '{\n  [Symbol(debug)]: 100\n}');
         });
 
         it("Error", () => {
Original file line number	Diff line number	Diff line change
`@@ -90,9 +90,11 @@ void symbol_format(Isolate* isolate, StringBuffer& strBuffer, v8::Local<v8::Valu`
`90`	`90`
`91`	`91`	`void key_format(Isolate* isolate, StringBuffer& strBuffer, v8::Local<v8::Value> v, bool color)`
`92`	`92`	`{`
`93`		`- if (v->IsSymbol())`
	`93`	`+ if (v->IsSymbol()) {`
	`94`	`+ strBuffer.append("[");`
`94`	`95`	`symbol_format(isolate, strBuffer, v, color);`
`95`		`- else`
	`96`	`+ strBuffer.append("]");`
	`97`	`+ } else`
`96`	`98`	`string_format(isolate, strBuffer, v);`
`97`	`99`	`}`
`98`	`100`