1// Copyright JS Foundation and other contributors, http://js.foundation 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15var str0 = "��"; 16var str1 = "\ud801\udc00"; 17var str2 = "\ud801"; 18var str3 = "\udc00"; 19 20var str_concat = str2 + str3; 21 22assert(str0 == str_concat); 23assert(str1 == str_concat); 24