Nov 25, 2014 · I have seen the use of %>% (percent greater than percent) function in some packages like dplyr and rvest. What does it mean? Is it a way to write closure blocks in R?

Actually, the above function will be treated as function expression without a name. The main purpose of wrapping a function with close and open parenthesis is to avoid polluting the global …

Dec 8, 2010 · About __func__: "The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function definition, the declaration: static …

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 …

When to use arrow function and when not: Don't use to add function as a property in object literal because we can not access this. Function expressions are best for object methods. Arrow …

357 Function pointers in C can be used to perform object-oriented programming in C. For example, the following lines is written in C: String s1 = newString(); s1->set(s1, "hello"); Yes, …

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 …

Oct 9, 2012 · Can I declare default parameter like function myFunc( a, b=0) { // b is my optional parameter } in JavaScript?

32 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 = …

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.