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Editorial: tighten param type in ForDeclarationBindingInitialization #3815

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ljharb merged 1 commit into from
Apr 24, 2026
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Editorial: tighten param type in ForDeclarationBindingInitialization #3815

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5 changes: 1 addition & 4 deletions spec.html
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Expand Up @@ -22306,14 +22306,11 @@ <h1>Static Semantics: IsDestructuring ( ): a Boolean</h1>
<h1>
Runtime Semantics: ForDeclarationBindingInitialization (
_value_: an ECMAScript language value,
_environment_: an Environment Record or *undefined*,
_environment_: an Environment Record,
): either a normal completion containing ~unused~ or an abrupt completion
</h1>
<dl class="header">
</dl>
<emu-note>
<p>*undefined* is passed for _environment_ to indicate that a PutValue operation should be used to assign the initialization value. This is the case for `var` statements and the formal parameter lists of some non-strict functions (see <emu-xref href="#sec-functiondeclarationinstantiation"></emu-xref>). In those cases a lexical binding is hoisted and preinitialized prior to evaluation of its initializer.</p>
</emu-note>
<emu-grammar>ForDeclaration : LetOrConst ForBinding</emu-grammar>
<emu-alg>
1. Return ? BindingInitialization of |ForBinding| with arguments _value_ and _environment_.
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