What is a sample template

Templates explanation and definition

A template, freely translated from English, is a template. The term template already describes the basic function of a template. A template is a construct or a starting point that is filled with certain content at predefined places. Templates occur in a wide variety of areas. In addition to the classic templates in Office documents, templates are also used, for example, as class templates in C ++ programming. Templates are used very frequently in the programming of websites. In this application, templates offer, for example, a ready-made page layout that only needs to be filled with the corresponding content. There are also special templates, for example as a concept within a SAP system.

Templates as templates

Templates are used as templates in a variety of applications. Whether text documents, spreadsheets or design programs, whenever certain documents have to be created regularly, templates are used. A sample template for a brochure or a business letter may be mentioned as an example. A previously prepared layout is called up via a template and supplemented with texts or photos and graphics at certain points.
Such a template for the pre-formatted content has the advantage that it can be used over and over again. As a rule, the template is opened and a copy is temporarily saved. The additions are made in this copy. Alternatively, there is the option of assigning the layout to the actual document by linking to the template. The template itself remains unchanged and can therefore be used as often as you like.
A template does not necessarily have to refer to an entire document and thus influence the overall structure. It is quite common to use templates only for certain paragraph and character formats or individual text modules.

Templates in C ++ programming

Templates play a major role in C ++ programming. Here, too, the template has the function of a template, but at the same time also the function of a regulation. With the help of the template, the compiler receives an instruction in which way a function or a class is to be generated. C ++ knows exactly these two template types: the function template and the class template.
With the function template, a template is created that deals with functions of the same type, which are always the same in the sequence, but deal with different data types, for example. One example is the determination of the maximum value from several values. The function - the determination of the maximum value - is always the same. The data types of the parameters that output the values ​​can have different origins.
The class template works according to a similar pattern. However, this template does not apply the given principle to the function, but to the corresponding class. A class template is often used to create generic containers, for example to implement linked lists.
Class and function templates can also be specialized. With the help of these specialized templates, a more efficient implementation for certain data types is possible. The interface of a template does not have to be changed for this process.
Templates are dependent on parameters. These parameters are separated into "type parameters" - any data type is suitable as type parameters - and "non-type parameters" - these are constant and known values ​​at compile time. “Template templates” - here templates are transferred as parameters - and “template packs” are additional parameters. A variable number of parameters is defined in template packs.

The template as a template for website programming

Comparable to the templates when creating documents, templates for website design also provide ready-made - but also changeable - frameworks that have to be filled with the corresponding content in clearly defined positions. With the increasing use of content management systems, the importance of templates also increased. Put simply, a template is a design template for a website to be created. In particular, people who have little knowledge of graphics benefit from these templates, which enable the websites to have a professional and uniform appearance.
An editor who maintains a content management system essentially only wants to deal with the content of the website. To do this, he needs a layout grid that allows the website to always appear the same despite the changed content. This grid provides a template. If a changed appearance is desired on certain sub-pages, an additional template is used for these sub-pages. It is possible to manage any number of templates in such a system.
The template itself consists of two areas: the formatting of the page elements and the positioning of individual modules. The page elements are formatted using "Cascading Style Sheets" (CSS). A corresponding CSS file - or several - is always part of the template. The modules, content and individual components of the website are positioned using the basic template file, which is written in the HTML markup language and normally also contains PHP variables. Webmasters with programming experience can adapt the templates in these two areas according to their own wishes.
In addition to the front-end template, i.e. the template that the website visitor sees, back-end templates are also used in content management systems. With such a template, the backend, i.e. the area that is used to manage the website, is designed accordingly.
Templates are not only created and offered for content management systems. A template is available for almost every type of web application: shop systems, blogs, forums, Flash templates and even conventional "simple" websites can be designed using templates.

Working with a template engine

In all cases where a designer works with a programmer, complications can arise, especially when the designer actively intervenes in the programming code. At the same time, it always makes sense to keep the content and layout separate in addition to the separation of logic and presentation, especially when the project is getting bigger and bigger. A template engine can help here.
In the template created, variables are built into the HTML code for implementation, which are later replaced by the desired values ​​using a template engine. The advantage is that the HTML code is leaner and clearer, static text can be linked with dynamic content and the designer works independently of the programmer. A disadvantage besides the additional overhead is that programming with a template engine requires a good knowledge of the subject.

Many more templates

The template types described above represent a whole range of applications in which templates of the most varied of orientations play a role. However, they are always templates, templates or regulations. When using URL templates, for example, certain parameters in the URL are replaced by values ​​so that a complete and correct URL is ultimately obtained. Templates are also used in very complex systems, for example to describe algorithms without having to specify certain data types in advance. Templates will always help to simplify or make work easier.

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