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Groovy: whats the purpose of def in def x = 0? Using the def keyword in larger programs is important as it helps define the scope in which the variable can be found and can help preserve encapsulation If you define a method in your script, it won't have access to the variables that are created with "def" in the body of the main script as they aren't in scope: x = 1 def y = 2 public bar() {
How can I use `def` in Jenkins Pipeline? - Stack Overflow I am learning Jenkins Pipeline, and I tried to follow this Pipeline code But my Jenkins always complains that def is not legal I am wondering did I miss any plugins? I already installed groovy, j
What is the purpose of the `self` parameter? Why is it needed? For a language-agnostic consideration of the design decision, see What is the advantage of having this self pointer mandatory explicit? To close debugging questions where OP omitted a self parameter for a method and got a TypeError, use TypeError: method () takes 1 positional argument but 2 were given instead If OP omitted self in the body of the method and got a NameError, consider How can
TypeError: type object is not subscriptable in a function signature The following answer only applies to Python < 3 9 The expression list[int] is attempting to subscript the object list, which is a class Class objects are of the type of their metaclass, which is type in this case Since type does not define a __getitem__ method, you can't do list[ ] To do this correctly, you need to import typing List and use that instead of the built-in list in your type