Regular JavaScript functions work as if there is an implicit "this" parameter (which gets the value from the left-hand side of the call expression rather than t

Regular JavaScript functions work as if there is an implicit "this" parameter (which gets the value from the left-hand side of the call expression rather than the argument list). Fat-arrow function on the other hand does not change "this", which means the "this" binding inside a fat-arrow function is the one from the containing scope. But in both cases the scope of the "this" binding is lexical. Dynamic scope means something different. Dynamic scope means that a variable binding from the call site is visible in a called function and down the call stack. This is not how "this" works. The "this" binding at the call site is never visible inside the called function, unless the called function happen to be nested inside the same lexical scope. "this" is confusing because it gets rebound at every call, even if the function is not called using dot expression. But it is not because of dynamic scoping.