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
What does \\. self actually do in Swift SwiftUI? - Stack Overflow I think it is setting the id for each list item as each item in the numbers array? Correct me if wrong - but is each id being set as whatever Int is in each entry of the numbers array? If so, then what does \ actually do when typing \ self and what does self actually do in combination with \?
sql - Self join vs. inner join - Stack Overflow A self join is a join of a table to itself This table appears twice in the FROM clause and is followed by table aliases that qualify column names in the join condition To perform a self join, Oracle Database combines and returns rows of the table that satisfy the join condition