How to use the. NET Global namespaces

Use explicit std:: qualification
#include <iostream>

int main ()
{
int Val;

Std::cout << "Enter a number:";

Std::cin >> Val;

Std::cout << "This is your number:";
Std::cout << Std::hex << val;

return 0;
}

Instance two gives the global namespace only a few names

#include <iostream>

Gain access to cout, CIN, and Hex
Using Std::cout;
Using Std::cin;
Using Std::hex;

int main ()
{
int Val;

cout << "Enter a number:";

Cin >> Val;
cout << "This is your number:";
cout << Hex << val;
return 0;
}

Reference manual

This section describes the members or types that extend the ECMAScript (JavaScript) Global object and other core objects.

JavaScript base type Extension

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Name	Description
Array type extension	Provides an extension of the basic JavaScript Array functionality by adding static methods.
Boolean type extension	Provides an extension to a basic JavaScript Boolean object.
Date type extension	Provides an extension to a basic JavaScript date object.
Error type extension	Provides a static function that extends the built-in JavaScript Error types by providing exception details and support for application compilation mode (debugging or Publishing).
function type extension	Provides static functions that extend the built-in ECMAScript (JavaScript) function type by providing exception details and supporting application compilation mode (debugging or Publishing).
Number type extension	Extend the basic JavaScript number feature in static methods and instance methods.
Object type extension	Provides extended functionality similar to reflection for basic JavaScript object objects.
String type extension	Provides an extension of the basic JavaScript String functionality in static methods and instance methods.

Type

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name	description
type class

Global shortcuts for common APIs

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Name	Description
Sys.UI.DomEvent $addHandler Method	Provides a shortcut to the Sys.UI.DomEvent.addHandler method that adds a DOM event handler to the DOM element that exposes the event.
Sys.UI.DomEvent. $addHandlers Method	provide Sys.UI.DomEvent addhandlers method that adds a list of DOM event handlers to the DOM element that exposes the event.
Sys.UI.DomEvent. $clearHandlers Method	Provides a shortcut to the Sys.UI.DomEvent clearhandlers method that removes the method from the DOM element by Sys.UI.DomEvent AddHandler or Sys.UI.DomEvent All DOM event handlers that are added by the Addhandlers method.
sys.component $create Method	Provides a shortcut to the Sys.Component.create method that creates and initializes a component of the specified type.
sys.application $find Method	Provides a shortcut to the Sys.Application.findComponent method that returns the specified Component object.
Sys.UI.DomElement $get Method	Provides a shortcut to the getElementById method that returns an array of all components registered with the application using the addcomponent method.
Sys.UI.DomEvent $removeHandler Method	Provides a shortcut to the System.UI.DomEvent.removeHandler method that removes a DOM event handler from the DOM element that exposes the event.