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- 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
- When to use self, self, mut self in methods? - Stack Overflow
More notes Self is an alias for the type that the impl block is for The rules of ownership and borrowing apply to self as they apply to any other parameter (see e g this answer) Examples of when to use which here and here Examples of when we should take ownership here, although the answers don't provide code examples but just point to the docs self is not just used as the first parameter
- What is SELF JOIN and when would you use it? [duplicate]
27 A self join is simply when you join a table with itself There is no SELF JOIN keyword, you just write an ordinary join where both tables involved in the join are the same table One thing to notice is that when you are self joining it is necessary to use an alias for the table otherwise the table name would be ambiguous
- Postman Error: Self signed certificate in certificate chain
As per your answer when i added a PEM file under "CA Certificate" i get the same self signed certificate "SSL Error: Self signed certificate in certificate chain"
- Difference between cls and self in Python classes?
Why is cls sometimes used instead of self as an argument in Python classes? For example: class Person: def __init__(self, firstname, lastname): self firstname = firstname self
- Whats the difference between self and Self? - Stack Overflow
self when used as first method argument, is a shorthand for self: Self There are also self, which is equivalent to self: Self, and mut self, which is equivalent to self: mut Self
- Why use $_SERVER[PHP_SELF] instead of - Stack Overflow
The value of $_SERVER['PHP_SELF'] is taken directly from the URL entered in the browser Therefore if you use it without htmlspecialchars(), you're allowing hackers to directly manipulate the output of your code
- c# - JSON. Net Self referencing loop detected - Stack Overflow
Even using the "ignore" setting newtonsoft seems to partially serialize the self referencing In my code, it seems the serialized data is about 80x bigger than the real data (when serialized)
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