ladybird/Libraries/LibJS/Tests/Object.getOwnPropertyNames.js

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try {
var names = Object.getOwnPropertyNames([1, 2, 3]);
assert(names.length === 4);
assert(names[0] === '0');
assert(names[1] === '1');
assert(names[2] === '2');
assert(names[3] === 'length');
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}