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All languages have different semantics. Otherwise they would've been one language. Python has an explicit self that is unbound. Other languages have it implici

• twic 9y ago
  What do you mean by "unbound"? Some Python: >>> class Foo: >>> def __init__(self, x): self.x = x ... ... def bar(self): print('x =', self.x) ... ... >>> f = Foo(23) >>> b = f.bar >>> b() x = 23 Note that when you extract the method from the object as a callable, it hangs onto the right self. Same deal as Java: class Foo { private int x; Foo(int x) { this.x = x; } void bar() { System.out.println("x = " + x); } } public static void main(String[] args) { Foo f = new Foo(23); Runnable b = f::bar; b.run(); // prints x = 23 }
  • spion 9y ago
    I meant "bound", sorry. Funny that you mention "::" in Java. ES7/ES8 was going to have a bind operator "::" that extracts a bound method with a slightly different syntax. i.e. `::f.bar`