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Do not throw if the attribute setter is called with no arguments #1498

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Jul 22, 2025
Merged

Do not throw if the attribute setter is called with no arguments #1498

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4 changes: 2 additions & 2 deletions index.bs
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Expand Up @@ -12264,8 +12264,8 @@ in which case they are exposed on every object that [=implements=] the interface
<emu-val>undefined</emu-val>; there is no [=attribute setter=] function.
1. Assert: |attribute|'s type is not a [=promise type=].
1. Let |steps| be the following series of steps:
1. If no arguments were passed, then [=JavaScript/throw=] a <l spec=ecmascript>{{TypeError}}</l>.
1. Let |V| be the value of the first argument passed.
1. Let |V| be <emu-val>undefined</emu-val>.
1. If any arguments were passed, then set |V| to the value of the first argument passed.
1. Let |id| be |attribute|'s [=identifier=].
1. Let |idlObject| be null.
1. If |attribute| is a [=regular attribute=]:
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