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  1. What is the purpose of a self executing function in javascript?

    Mar 3, 2015 · Is there a parameter and the "Bunch of code" returns a function? var a = function(x) { return function() { document.write(x); } }(something); Closure. The value of something gets …

  2. syntax - What does %>% function mean in R? - Stack Overflow

    Nov 25, 2014 · The funny percent-sign syntax is how R lets users define their own infix functions. An example of a built-in infix operator in R is +; the + in 1 + 2 actually does the function call …

  3. What's the difference between __PRETTY_FUNCTION__, …

    Dec 29, 2023 · constexpr const char* function_name() const noexcept; 6 Returns: If this object represents a position in the body of a function, returns an implementation-defined NTBS that …

  4. How do function pointers in C work? - Stack Overflow

    May 8, 2009 · Function pointers become easy to declare once you have the basic declarators: id: ID: ID is a; Pointer: *D: D pointer to; Function: D(<parameters>): D function taking …

  5. Check if a variable is of function type - Stack Overflow

    Suppose I have any variable, which is defined as follows: var a = function() {/* Statements */}; I want a function which checks if the type of the variable is function-like. i.e. : function foo(v...

  6. What does ** (double star/asterisk) and * (star/asterisk) do for ...

    Aug 31, 2008 · So we now know function definitions with positional as well as keyword arguments. Now let us study the '*' operator and '**' operator. Please note these operators can …

  7. What does the “at” (@) symbol do in Python? - Stack Overflow

    Jun 17, 2011 · Calling another function to operate on your created function. This returns a new function. The function that you call is the argument of the @. Replacing the function defined …

  8. How do I check if a Sql server string is null or empty

    Use the LEN function to check for null or empty values. You can just use LEN(@SomeVarcharParm) > 0. This will return false if the value is NULL, '', or ' '. This is …

  9. What is the proper way to comment functions in Python?

    Dec 14, 2019 · Function comments should describe the intent of a function, not the implementation; Outline any assumptions that your function makes with regards to system …

  10. What does (function ($) {}) (jQuery); mean? - Stack Overflow

    May 30, 2010 · Line 2 is a plain function, wrapped in parenthesis to tell the runtime to return the function to the parent scope, once it's returned the function is executed using line 4, maybe …