
javascript - What does $ (function () {} ); do? - Stack Overflow
Answer To Your Question So what is $ (function () { });? Now that you know that $ is the name of the function, if you are using the jQuery library, then you are calling the function named $ and passing …
What's the meaning of "=>" (a fat arrow formed from equal and …
Jun 20, 2017 · A traditional function may bind its own this value, depending on how it is defined and called. This can require lots of gymnastics like self = this;, etc., to access or manipulate this from one …
syntax - What does %>% function mean in R? - Stack Overflow
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?
What does ** (double star/asterisk) and * (star/asterisk) do for ...
Aug 31, 2008 · See What do ** (double star/asterisk) and * (star/asterisk) mean in a function call? for the complementary question about arguments.
c++ - What is the meaning of 'const' at the end of a member function ...
When you add the const keyword to a method the this pointer will essentially become a pointer to const object, and you cannot therefore change any member data. (Unless you use mutable, more on that …
python - What is the meaning of single and double underscore before …
What do single and double leading underscores before an object's name represent in Python?
What does the "at" (@) symbol do in Python? - Stack Overflow
Functions, in Python, are first class objects - which means you can pass a function as an argument to another function, and return functions. Decorators do both of these things. If we stack decorators, the …
Meaning of `= delete` after function declaration - Stack Overflow
Aug 17, 2014 · And a deleted function shall be the first declaration of the function (except for deleting explicit specializations of function templates - deletion should be at the first declaration of the …
What is the purpose of the single underscore - Stack Overflow
May 5, 2011 · In the context internationalization and localization, _ is used as an alias for the primary translation function. gettext.gettext (message) Return the localized translation of message, based on …
What is the purpose of the dollar sign in JavaScript?
Mar 29, 2022 · A '$' in a variable means nothing special to the interpreter, much like an underscore. From what I've seen, many people using jQuery (which is what your example code looks like to me) …