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// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.at
description: >
Returns undefined if the specified index less than or greater than the available index range.
info: |
%TypedArray%.prototype.at( index )
If k < 0 or k ≥ len, then return undefined.
includes: [testTypedArray.js]
features: [TypedArray,TypedArray.prototype.at]
---*/
assert.sameValue(
typeof TypedArray.prototype.at,
'function',
'The value of `typeof TypedArray.prototype.at` is "function"'
);
testWithTypedArrayConstructors(TA => {
assert.sameValue(typeof TA.prototype.at, 'function', 'The value of `typeof TA.prototype.at` is "function"');
let a = new TA([]);
assert.sameValue(a.at(-2), undefined, 'a.at(-2) must return undefined'); // wrap around the end
assert.sameValue(a.at(0), undefined, 'a.at(0) must return undefined');
assert.sameValue(a.at(1), undefined, 'a.at(1) must return undefined');
});
reportCompare(0, 0);
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