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 x = [0];
16assert (x == x);
17assert (x == !x);
18assert (Array(3) == ",,");
19
20assert ([] + [] == "");
21assert ([] + {} == "[object Object]");
22assert (eval ("{} + []") == 0);
23assert (isNaN (eval ("{} + {}")));
24assert ({} + [] == "[object Object]");
25assert ({} + {} == "[object Object][object Object]");
26
27assert ((! + [] + [] + ![]) === "truefalse");
28