v8/test/mjsunit/array-isarray.js

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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
assertTrue(Array.isArray([]));
assertFalse(Array.isArray({}));
assertFalse(Array.isArray(null));
assertFalse(Array.isArray(0));
assertFalse(Array.isArray(0.1));
assertFalse(Array.isArray(""));
assertFalse(Array.isArray(undefined));
assertTrue(Array.isArray(new Proxy([], {})));
assertFalse(Array.isArray(new Proxy({}, {})));
assertTrue(Array.isArray(new Proxy(new Proxy([], {}), {})));
assertFalse(Array.isArray(new Proxy(new Proxy({}, {}), {})));
(function TestIsArrayStackOverflow() {
var proxy = new Proxy([], {});
for(var i=0; i<200*1024; i++) {
proxy = new Proxy(proxy, {});
}
assertThrows(()=>Array.isArray(proxy), RangeError);
})();