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JavaScript: Scripting language
Web APIs: Programming interfaces
Structuring content with HTML module
Dynamic scripting with JavaScript module
Labels can only be applied to statements, not declarations. There is a legacy grammar that allows function declarations to be labeled in non-strict code:
Labels can only be applied to statements, not declarations. There is a legacy grammar that allows function declarations to be labeled in non-strict code:
Labels can only be applied to statements, not declarations. There is a legacy grammar that allows function declarations to be labeled in non-strict code:
Labels can only be applied to statements, not declarations. There is a legacy grammar that allows function declarations to be labeled in non-strict code:
Labels can only be applied to statements, not declarations. There is a legacy grammar that allows function declarations to be labeled in non-strict code:
This page was last modified on Sep 4, 2026 by MDN contributors.