- for loop
- global
- for-in loop
- global
- SyntaxError: for-in loop head declarations cannot have an initializer
- SyntaxError: for-in loop head declarations cannot have an initializer
- SyntaxError: for-in loop head declarations cannot have an initializer
- SyntaxError: for-in loop head declarations cannot have an initializer
- ReferenceError: Use before declaration
- a
- b
- a
- b
- SyntaxError: Const must be initialized
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