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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() {
- oop - What do __init__ and self do in Python? - Stack Overflow
In this code: class A(object): def __init__(self): self x = 'Hello' def method_a(self, foo): print self x + ' ' + foo the self variable represents the instance of the object itself Most object-oriented languages pass this as a hidden parameter to the methods defined on an object; Python does not You have to declare it explicitly When you create an instance of the A class and call its
- 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
- 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
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