Add Array.isArray

array_test.go

@@ -266,3 +266,12 @@ func TestArray_sort(t *testing.T) {
 	test("pqr", "-10,0.05,1,100,401,5,72,8")
 	test("stu", "-10,0.05,1,5,8,72,100,401")
 }
+
+func TestArray_isArray(t *testing.T) {
+	Terst(t)
+
+	test := runTest()
+	test(`
+        [ Array.isArray(), Array.isArray([]), Array.isArray({}) ];
+    `, "false,true,false")
+}

builtin_array.go

@@ -451,3 +451,8 @@ func builtinArray_sort(call FunctionCall) Value {
 	}
 	return call.This
 }
+
+func builtinArray_isArray(call FunctionCall) Value {
+	object := call.Argument(0)._object()
+	return toValue(object != nil && object.class == "Array")
+}

global.go

@@ -219,6 +219,11 @@ func newContext() *_runtime {
 		"sort", 0, builtinArray_sort,
 	)
 
+	self.Global.Array.write(
+		_propertyMode(0),
+		"isArray", builtinArray_isArray,
+	)
+
 	self.Global.String = self.newGlobalFunction(
 		1,
 		"String", builtinString,