javascript - What does $(function() {} ); do? - Stack Overflow
$ = function() { alert('I am in the $ function'); } JQuery is a very famous JavaScript library and they have decided to put their entire framework inside a function named jQuery . To make it easier for people to use the framework and reduce typing the whole word jQuery every single time they want to call the function, they have also created an ...
iife - What is the (function () { } ) () construct in JavaScript ...
5. It is a function expression, it stands for Immediately Invoked Function Expression (IIFE). IIFE is simply a function that is executed right after it is created. So insted of the function having to wait until it is called to be executed, IIFE is executed immediately. Let's construct the IIFE by example.
r - Error: could not find function "%>%" - Stack Overflow
2015年5月15日 · I'm running an example in R, going through the steps and everything is working so far except for this code produces an error: words <- dtm %>% as.matrix %>% colnames %>% (functio...
syntax - What does %>% function mean in R? - Stack Overflow
2014年11月25日 · 2. %>% is the pipe operator from magrittr, widely used in other Tidyverse and compatible packages. The basic way to understand it is it takes the left-hand side (LHS) and turns it into the first argument of the right-hand side (RHS). x %>% f(y) is special syntax that is essentially f(x,y).
What's the difference between __PRETTY_FUNCTION__, …
2010年12月8日 · 366. __func__ is an implicitly declared identifier that expands to a character array variable containing the function name when it is used inside of a function. It was added to C in C99. From C99 §6.4.2.2/1: The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function ...
How do function pointers in C work? - Stack Overflow
2009年5月8日 · 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 <parameters> returning; While D is another declarator built using those same rules. In the end, somewhere, it ends with ID (see below for an example), which is the name of the ...
__FILE__, __LINE__, and __FUNCTION__ usage in C++
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 should correspond to the function name. Otherwise, returns an empty string. where NTBS means "Null Terminated Byte String".
Check if a variable is of function type - Stack Overflow
I think you can just define a flag on the Function prototype and check if the instance you want to test inherited that. define a flag: Function.prototype.isFunction = true; and then check if it exist. var foo = function(){}; foo.isFunction; // will return true
Function vs. Stored Procedure in SQL Server - Stack Overflow
2023年1月9日 · Function must return a value but in Stored Procedure it is optional( Procedure can return zero or n values). Functions can have only input parameters for it whereas Procedures can have input/output parameters . Function takes one input parameter it is mandatory but Stored Procedure may take o to n input parameters..
Passing parameters to a Bash function - Stack Overflow
2011年6月2日 · The function refers to passed arguments by their position (not by name), that is $1, $2, and so forth. $0 is the name of the script itself. Example: function_name () {. echo "Parameter #1 is $1". } Also, you need to call your function after it is declared. #!/usr/bin/env sh.