The _ is not necessary for function calls. It is just used to indicate that something does not need to have a name . In regards to how you would refer to your function, You would not have to pass any name for the function call.
Read moreHow do I use the SF symbol?
How to use SF Symbols in Swift
Read moreWhat is == and === in Swift?
== is used to check if two variables are equal i.e 2 == 2 . But in case of === it stands for equality i.e if two instances referring to the same object example in case of classes a reference is created which is held by many other instances. Follow this answer to receive notifications.2 Haz 2014
Read moreWhat does == mean in a code?
In programming languages == sign or double equal sign means we are comparing right side with left side . And this comparison returns true or false. We usually use this comparison inside if condition to do something specific. Double equal operator is a very common used operator after single equal.
Read moreWhat is _ variable in Swift?
Variables are used to store data in memory so that we can use them in program . Variables are like container that can hold data which can be changed later. Every variable has a unique name called identifier.
Read moreWhat is _ in Swift function parameter?
Omitting Argument Labels If you don’t want an argument label for a parameter, write an underscore ( _ ) instead of an explicit argument label for that parameter. // refer to the argument values for the first and second parameters.
Read moreWhat does _: mean in Swift documentation?
In the documentation it is being used as a wildcard to indicate a function that takes an unnamed parameter .
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