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Editorial: Validate array length using SameValueZero in ArraySetLength and Array #2460

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Jul 19, 2021
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Editorial: Validate array length using SameValueZero in ArraySetLength and Array #2460

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4 changes: 2 additions & 2 deletions spec.html
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Original file line number Diff line number Diff line change
Expand Up @@ -13728,7 +13728,7 @@ <h1>
1. Let _newLenDesc_ be a copy of _Desc_.
1. [id="step-arraysetlength-newlen"] Let _newLen_ be ? ToUint32(_Desc_.[[Value]]).
1. [id="step-arraysetlength-numberlen"] Let _numberLen_ be ? ToNumber(_Desc_.[[Value]]).
1. If _newLen_ is not the same value as _numberLen_, throw a *RangeError* exception.
1. If SameValueZero(_newLen_, _numberLen_) is *false*, throw a *RangeError* exception.
1. Set _newLenDesc_.[[Value]] to _newLen_.
1. Let _oldLenDesc_ be OrdinaryGetOwnProperty(_A_, *"length"*).
1. Assert: ! IsDataDescriptor(_oldLenDesc_) is *true*.
Expand Down Expand Up @@ -35206,7 +35206,7 @@ <h1>Array ( ..._values_ )</h1>
1. Let _intLen_ be *1*<sub>𝔽</sub>.
1. Else,
1. Let _intLen_ be ! ToUint32(_len_).
1. If _intLen_ is not the same value as _len_, throw a *RangeError* exception.
1. If SameValueZero(_intLen_, _len_) is *false*, throw a *RangeError* exception.
1. Perform ! Set(_array_, *"length"*, _intLen_, *true*).
1. Return _array_.
1. Else,
Expand Down