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Implicit Bindings: When a function is called with a context, this keyword will be bound to that context.

Explicit Bindings: Call and apply methods are used to explicitly bind this to a function.

New Bindings: When a constructor function is called with the new keyword, a new object is created and this keyword is bound to that object.

Window Binding: If none of the above bindings are present, this keyword will refer to the global object or the window object in a browser.