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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.copywithin
es6id: 22.1.3.3
description: >
target argument is coerced to an integer value.
info: |
22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
...
5. Let relativeTarget be ToInteger(target).
...
includes: [compareArray.js]
---*/
assert(
compareArray(
[0, 1, 2, 3].copyWithin(undefined, 1), [1, 2, 3, 3]
),
'undefined value coerced to 0'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin(false, 1), [1, 2, 3, 3]
),
'false value coerced to 0'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin(NaN, 1), [1, 2, 3, 3]
),
'NaN value coerced to 0'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin(null, 1), [1, 2, 3, 3]
),
'null value coerced to 0'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin(true, 0), [0, 0, 1, 2]
),
'true value coerced to 1'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin('1', 0), [0, 0, 1, 2]
),
'string "1" value coerced to 1'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin(0.5, 1), [1, 2, 3, 3]
),
'0.5 float value coerced to integer 0'
);
assert(
compareArray(
[0, 1, 2, 3].copyWithin(1.5, 0), [0, 0, 1, 2]
),
'1.5 float value coerced to integer 1'
);
|
