How does the ‘this’ keyword behave differently when used inside a function declaration versus a function expression?

  • 'this' refers to the global object (e.g., window in a browser) when used inside a function declaration.
  • 'this' refers to the local context where the function expression is defined, allowing for more precise control over its behavior.
  • 'this' always refers to the function itself, regardless of whether it's a declaration or expression.
  • 'this' behaves the same way in both function declarations and function expressions.
When 'this' is used inside a function declaration, it typically refers to the global object (e.g., 'window' in a browser), which can lead to unexpected behavior in some cases. In contrast, 'this' inside a function expression refers to the local context where the function is defined, making it more predictable and controllable.
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