What is Angular?
These days, the platform of frameworks has become very wide, and different types have appeared in the computer world. One of these frameworks is the Angular JS framework, derived from the development of the JavaScript language. In this article, we will tell you what Angular is and in what fields the Angular programming language can help us.
What is Angular?
The meaning of angular in Farsi is angular. But actually, Angular is a structural framework for dynamic web applications. In fact, Angular is an open source web framework based on JavaScript. This framework allows you to choose HTML as your template language and extend HTML syntaxes to explicitly express software components.
It is better to know that Angular is also called Angular in some dialects. Angular or Angular supports all versions of HTML and is designed for software. We suggest you read our article to get information about coding techniques and what coding is .
HTML is an excellent declarative language for static documents that are not very similar to creating software. As a result, building software with it is an exercise in teaching you what to do and tricking the browser into doing it for you. Previously, we have fully explained what HTML is and what it is used for in an article .
The goal of its development teams is to design and test such programs to identify possible problems, and they are trying to help the development of single-page applications by providing a framework based on Mode-view-control (MVC) and mode-view-viewmodel (MVVM).
You can about web applications in the article What is a web app ? read more
What is AngularJs?
Now, what should be said in response to angularjs? AngularJS was designed in 2009 by Google. After the acceptance of this framework, the second version of Angular was released in 2016, which was very different from Angular JS. In fact, it can be said that angularjs is the old version of angular.
Now that you know what Angular is, the question arises, what to do if the impedance between dynamic software and static texts do not match each other?
The solution of impedance mismatch between dynamic software and static texts
To solve the problem of impedance mismatch between dynamic software and static texts, it is often possible to achieve a favorable result by following the following steps:
1- Using the library
A set of functions that are useful when writing web applications. The library is a ready-made sample code; when needed, the library is referred to and the appropriate function is called for it, like jQuery.
2- Why use the Angular framework?
There are major reasons that make it easy to answer the question of why to use the Angular framework. These reasons include:
- Google support for the project – One of the biggest advantages of AngularJS is its support from Google.
- Using TypeScript language – This language is a great language for JavaScript that is highly secure.
- Declarative UI – Angular uses HTML to define the UI of its applications.
- POJO – with Angular you don’t need extra getter and setter functions anymore.
- Easy testing – Angular framework works in all software that supports MVC and no additional software is required.
- Modular structure
Read about UI in the What is User Interface article .
Angular has another approach; It tries to minimize the impedance mismatch between HTML-based texts and what software needs to create HTML structures.
Angular teaches the browser new commands through a structure called directives. like the :
- Data binding.
- DOM control structure for repeating, hiding and showing Document Object Model (DOM) parts
- Form support and form validation.
- Add new behaviors to DOM elements, such as handling DOM events.
- Grouping HTML into reusable components.
If you want to know more about data binding, I suggest you read the article What is data binding .
A complete client-side programming method
Angular is not the only piece in the overall puzzle of building web applications on the receiver side. handles all the DOM and AJAX code you’ve manually written and defined and puts it neatly inside a structure. This makes Angular independent on how CRUD (Create, Read, Update, Delete) applications should be built. But once it becomes independent, it tries to make sure that its opinion is only a starting point and you can easily change it. Angular comes with the following:
- Everything you need to build CRUD applications in one cohesive package: Data-binding, simple template commands, form validation, routing, deep-linking, reusable components, and dependency injection.
- Testability report: unit tests, back-to-back tests, mocks and controller tests.
- Seed application and directory designs and test scripts as a starting point.
What is Angular’s sweet spot?
Angular has made it easy for developers to develop software by providing a higher level of concepts. As with all concepts, this comes with a degree of flexibility. In other words, Angular is not suitable for all applications. Angular is built with the software CRUD method. Fortunately, CRUD software supports the majority of web applications. Anyway, it helps you to know which software is not suitable for Angular .
Games and GUI editors are examples of compact software that use DOM tricks. These types of applications are different from CRUD applications, and thus are not suitable for Angular . In such cases, it is better to use libraries with a lower concept level; Same as jQuery.
What is structure?
programming Angular is built on the idea that declarative code is better than prescriptive code for building UI and composing software components, while prescriptive code is great for expressing business logic.
- It’s a good idea to separate DOM manipulation from application logic. This significantly increases the ability to test the code.
- It is really a very good idea to give as much importance to software testing as to writing it. The difficulty of testing is significantly related to the structure in which the code is written.
- It is very good to separate the client side and the server side in a software. This allows software development to proceed in parallel and allows both parties to reuse it.
- It is very helpful for a framework to guide developers throughout the development of a software: from UI design, to logical design and testing.
- It is a very good thing to always make common tasks obvious and difficult tasks possible.
What do you no longer need to do with Angola?
Registering callbacks : clutters your code, and makes it look like the forest for the trees. Deleting repetitive codes like callbacks seems to be a good thing. This greatly reduces the amount of JavaScript code you have to write and makes it easy to see what your code is doing.
Manipulate HTML DOM files automatically and programmatically
Manipulation of HTML DOM files is the basis of AJAX software, but it is laborious and error-prone. By explicitly defining that when the state
The software changes, no matter how the UI of the website changes, there is no need to change the low-level DOM codes, and these tasks are removed from your shoulders. Most software written with it never needs to modify the DOM programmatically, but you can if you want to.
for more information You are suggested to read our article on the subject of Ajax technology.
What is sorting data to and from UI in Angular language?
operations CRUD constitute most of the tasks of AJAX software. The process of sorting data from the server into an internal object as an HTML form allows the user to modify the form, validate the form, display validation errors, return to the internal model, and then return to the server, which creates It becomes a lot of text codes. almost eliminates most of this text, keeping the code that describes the main flow of the software rather than implementing all the details.
Writing tons of basic code just to get started
Usually, you need to write a lot of basic code to write a simple “Hello world” AJAX application. With Angular programming, you can easily bootstrap the software using services. This allows you to use development features faster. As a bonus, you get full control over the initialization process in automated testing.
Read about Bootstrap in the What is bootstrap article .
Advantages of Angular programming language
- To start learning this language, familiarity with HTML and CSS is enough
- Angular framework saves on writing codes and it is possible to use existing libraries
- Flexibility in syncing with other design tools and frameworks
- Full access to all commands for programmers
- The existence of a ready space for code testing, increases the speed of testing
- Using typescript makes it easier to access and isolate codes
Disadvantages of Angular programming language
- One of the major drawbacks of using Angular is the limited SEO options and accessibility for search engine crawlers.
- Another interesting thing about using the Angular framework is that it is very difficult to learn. With such a complex network of modules, programming languages, integrations, and customization capabilities, understanding Angular will definitely take some time.
Angular programming language features
provides a large selection of third-party integrations that can be easily added to the framework. This gives developers even more tools to improve their product’s overall look and feel.
Using elements and modules, this framework is fully customizable and gives the developer and designer more power. Angular elements can also be easily added to projects built using another framework, which only adds to the appeal of this program
