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  1. what is the difference between function declaration and signature?

    A function signature is the parts of the function declaration that the compiler uses to perform overload resolution. Since multiple functions might have the same name (ie., they're …

  2. language agnostic - What is a callback function? - Stack Overflow

    May 5, 2009 · A callback function is a function which is: accessible by another function, and is invoked after the first function if that first function completes A nice way of imagining how a …

  3. ERROR: function ... does not exist and HINT: No function matches …

    My function is: CREATE OR REPLACE FUNCTION FnUpdateSalegtab09 ( iacyrid Integer,iRepId Integer,iDrId Integer,ivrid Integer,imode smallint,itrno varchar,itrdate timestamp,iacid …

  4. How can I return two values from a function in Python?

    I would like to return two values from a function in two separate variables. What would you expect it to look like on the calling end? You can't write a = select_choice(); b = select_choice() …

  5. Return value from a VBScript function - Stack Overflow

    To return a value from a VBScript function, assign the value to the name of the function, like this: Function getNumber getNumber = "423" End Function

  6. How to return a result from a VBA function - Stack Overflow

    When called within VBA the function will return a range object, but when called from a worksheet it will return just the value, so set test = Range("A1") is exactly equivalent to test = …

  7. JavaScript error: "is not a function" - Stack Overflow

    It was attempted to call a value like a function, but the value is not actually a function. Some code expects you to provide a function, but that didn't happen.

  8. r - Error: could not find function "%>%" - Stack Overflow

    May 15, 2015 · For the meaning of the operator %>% you might want to consider this question: What does %>% function mean in R? Note that the same operator would also work with the …

  9. Define a function within another function in JavaScript

    I have a function whose structure is similar to the above. I want to abstract task 3 into a function, bar(), but I wish to limit the access of this function to only within the scope of foo(a).

  10. How do I define a function with optional arguments?

    0 A Python function can take in some arguments, take this for example, def add(x,y): return x+ y # calling this will require only x and y add(2,3) # 5 If we want to add as many arguments as we …