What is MVC? Explain the history of MVC and What is the utility of MVC (Model View Controller)?
Namespace Definition: A namespace refers to a specialised section, which is used to define the scope of identifiers used in a programming language like C++. Identifiers can be anything: functions, variables, and etc. Namespaces help in organising codes into their respective logical groups and prevenRead more
A namespace refers to a specialised section, which is used to define the scope of identifiers used in a programming language like C++. Identifiers can be anything: functions, variables, and etc. Namespaces help in organising codes into their respective logical groups and preventing name collisions within C++.
All identifiers are arranged in such a way that each of them can see one another without any specific qualification.
When you are using only one to two identifiers, you should use the declaration to let identifiers come within its scope while keeping other identifiers outside the namespace. A using directive should be positioned at the header of a .CPP file. You must not use directive in header files in usual cases because it will then include all elements in the namespace—it may lead to name collision, which is extremely tough to debug.
Define Namespace Member:
Namespace members can be defined using a lot of blocks in either a single file or multiple folders. A compiler helps in joining parts of namespaces through processing, with all members constituting the namespace.
The global namespace
When an identifier is not clearly mentioned in an explicit namespace, it automatically becomes part of the implicit global namespace. Programmers are advised not to make declarations at the global namespace as far as possible.
The Standard Namespace
The standard namespace or std namespace refers to standard library types and functions in C++.
Namespace Aliases can be used to denote a name using codes only. When names become too difficult to read or are too long, programmers use namespace aliases to simplify the task.See less
MVC Definition: MVC is the acronym for Model–View–Controller. It is basically a software design pattern which is mostly applied and used to develop the user interfaces dividing the related program logic into interconnected elements. MVC is applied to separate internal representations of informationRead more
MVC is the acronym for Model–View–Controller. It is basically a software design pattern which is mostly applied and used to develop the user interfaces dividing the related program logic into interconnected elements.
MVC is applied to separate internal representations of information from the ways information is presented to and accepted from the user.
This software design pattern is traditionally used for desktop Graphical User Interface or the GUIs. The GUIs turned useful and therefore, popular for designing different web application purposes. This is the primary reason why the MVC became popular programming languages.
History of MVC
MVC is now about 50 years old.
In the 1970s, Trygve Reenskaug introduced MVC into Smalltalk-79 while visiting the Xerox Palo Alto Research Center.
In the 1980s, the modern format of MVC was put into implementation by Jim Althoff and others who used it for the Smalltalk-80 class library.
1996, the use of the MVC pattern in web applications grew after the introduction of NeXT’s WebObjects. The use of MVC gained momentum after 2002 when Spring was introduced. It had a strong bond between Java and MVC.
In July and December respectively in 2005, the frameworks Django (July 2005, for Python) was introduced followed by Rails (December 2005, for Ruby).
With this, the popularity of MVC’s increased globally.
Utility of MVCs
MVCs have major utilities.
MVCs act as the application’s dynamic data structure. This is independent of the user interface. One of the many utilities of MVC is that it directly manages the data, logic, and rules of the application.
It enables multiple viewing of any representation of information such as a bar chart, diagram, map, data-table, or other numerical tables. It also acts as an effective controller accepting input and converting the command to the model or view.
MVCs now have emerged as an ultra-sophisticated management tool to implement various commands in a controlled regime. It receives user input from the controller and the view renders the presentation of the model in a particular format.
MVC also acts as the “core of the solution” to a problem while allowing it to be adapted for each system.See less