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declaration

Define a global variable in a JavaScript function

by IT Nursery

As the others have said, you can use var at global scope (outside of all functions and modules) to declare a global variable: … Read more

Tags declaration, function, javascript, scope, variables

Meaning of ‘const’ last in a function declaration of a class?

by IT Nursery

When you add the const keyword to a method the this pointer will essentially become a pointer to const object, and you cannot … Read more

Tags c, c++-faq, constants, declaration

How to initialize a vector in C++ [duplicate]

by IT Nursery

This question already has answers here: What is the easiest way to initialize a std::vector with hardcoded elements? (29 answers) Closed 2 years … Read more

Tags arrays, c, declaration, vector

Cannot refer to a non-final variable inside an inner class defined in a different method

by IT Nursery

Edited: I need to change the values of several variables as they run several times thorugh a timer. I need to keep updating … Read more

Tags declaration, final, java, methods

What are forward declarations in C++?

by IT Nursery

At: http://www.learncpp.com/cpp-tutorial/19-header-files/ The following is mentioned: add.cpp: int add(int x, int y) { return x + y; } main.cpp: #include <iostream> int add(int … Read more

Tags c, declaration, forward-declaration

What does “default” mean after a class’ function declaration?

by IT Nursery

I’ve seen default used next to function declarations in a class. What does it do? class C { C(const C&) = default; C(C&&) … Read more

Tags c, c++11, declaration, default, keyword

Is it possible to declare two variables of different types in a for loop?

by IT Nursery

Is it possible to declare two variables of different types in the initialization body of a for loop in C++? For example: for(int … Read more

Tags c, declaration, for-loop, scope

Meaning of = delete after function declaration

by IT Nursery

class my_class { … my_class(my_class const &) = delete; … }; What does = delete mean in that context? Are there any other … Read more

Tags c, c++11, declaration, delete-operator, function

What is the ‘open’ keyword in Swift?

by IT Nursery

The ObjectiveC.swift file from the standard library contains the following few lines of code around line 228: extension NSObject : Equatable, Hashable { … Read more

Tags declaration, modifier, swift, swift3, syntax

Declaring multiple variables in JavaScript

by IT Nursery

In JavaScript, it is possible to declare multiple variables like this: var variable1 = “Hello, World!”; var variable2 = “Testing…”; var variable3 = … Read more

Tags coding-style, declaration, javascript, performance, variables
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