I am new to coding Python and I just can't seem to understand what a Def function is! I have looked and read many tutorials on it and I still don't quite understand. Can somebody explain to me what...
def foo() -> lambda hi: True: "function body" # not a type expressions Beside the first the others have no typing meaning; but it still is valid syntax to hide a lambda definition in the return signature of a function. In later python versions you will find that -> test was replaced in the grammer with '->' expression, which makes it better ...
while googling, I find that "def" is used in python and groovy language. But, I am using java. So, how come it is possible to use keywords like "def" in java class? Is it possible to use other programming languages keywords in java? Please let me know in comment section, if you need any information from my end. Any help would be appreciated.
def é uma palavra-chave de construção da linguagem, ela não é uma função, ela serve justamente para declarar e definir uma função. O seu código, pela indentação postada, não faz o que deseja, Python é sensitivo à indentação.
python - What does def main () -> None do? - Stack Overflow
def: For every call to even, it calls the body of the even method again. But with even2 i.e. val, the function is initialized only once while declaration (and hence it prints val at line 4 and never again) and the same output is used each time it accessed.