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LibJS: Add Array.isArray()

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This commit is contained in:
Linus Groh 2020-05-08 16:28:35 +01:00 • committed by Andreas Kling
parent 01fd6ce045
commit ca22476d9d
3 changed files with 42 additions and 0 deletions
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28
Libraries/LibJS/Tests/Array.isArray.js Normal file
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load("test-common.js");
try {
assert(Array.isArray.length === 1);
assert(Array.isArray() === false);
assert(Array.isArray("1") === false);
assert(Array.isArray("foo") === false);
assert(Array.isArray(1) === false);
assert(Array.isArray(1, 2, 3) === false);
assert(Array.isArray(undefined) === false);
assert(Array.isArray(null) === false);
assert(Array.isArray(Infinity) === false);
assert(Array.isArray({}) === false);
assert(Array.isArray([]) === true);
assert(Array.isArray([1]) === true);
assert(Array.isArray([1, 2, 3]) === true);
assert(Array.isArray(new Array()) === true);
assert(Array.isArray(new Array(10)) === true);
assert(Array.isArray(new Array("a", "b", "c")) === true);
// FIXME: Array.prototype is supposed to be an array!
// assert(Array.isArray(Array.prototype) === true);
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}