Angular Javascript

Michael Zippo 04.11.2021

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Should you learn AngularJS ? And what is this technology used to implement in web development? These and other questions are discussed in this article.

AngularJS is an open source front-end web framework used to solve the obstacles presented by single page applications. The web framework provides a client-side model view controller (MVC) and a model view model architecture. It also provides components that are commonly found in advanced internet applications.

AngularJS is used in the frontend of a mean -mern-stack/"> MEAN stack , which is very powerful, consisting of a MongoDB database , an Express.js Web Applications web server framework, Angular JS and Node.js server runtime environment.

What is the Model-View-Controller (MVC) architecture ?

The MVC architecture is a software design model used to develop user interfaces (UIs). He divides the logic into three interconnected parts.

The architecture is implemented to separate the internal representations of your application in your code. It is a way that reflects how user information is presented, followed by how that information is then accepted.

The model is the central component of the model that manages data, logic and application rules. The view is responsible for any representation of information on your web application. Finally, the controller receives input and interprets directives for the model or view.

How Angular JS Works

AngularJS reads embedded HTML (Hypertext Markup Language) code with unique HTML attributes.

Find out how to create an HTML form in our article HTML .

AngularJS can read these attributes as commands. These commands are used to bind, display, or read parts of the page to a model represented by JavaScript variables. These variables can be defined in your code editor or called from static or dynamic JSON resources.

Learn more about JSON here in our article.

Bi-directional data binding

One of Angular’s most important features is its two-way data binding. Data binding is a technique that combines provider and consumer data sources to synchronize them.

This feature rolls back the -end-server model responsibilities. With two-way linking, models are rendered in plain HTML according to the data contained in the scope and defined in the model.

What is the scope related to AngularJS

Within the framework of the MVC architecture, the scope constitutes the model. This mean s that all the variables defined in the scope are also accessible from it s the view as a controller.

The scope is the glue that holds the view and the controller together. The service in Angular sees the changes in the model and transforms the HTML in the view using the controller.

The same happens for changes detected in the view by the scope service in AngularJS. The necessary changes are reflected in the HTML code of the template. This eliminates the need to manually manipulate the DOM and encourages the startup and rapid prototyping of web applications.

Learn more about the DOM at this article .

What is bootstrap and prototyping

Prototyping is an interactive mockup or demonstration of what your web application will look like when it goes live. Bootstrap uses libraries like bootstrap to quickly create uniform components in your application.

In this article, we learned about the uses of AngularJS, how it works, and identified some important features. We also learned what scope is related to Angular and how important it is for the MVC architecture of the framework. Finally, we talked about what binding is and how Angular uses bidirectional binding.

You are now on your way to learning more about AngularJs. This was just the start.

👻 Read also: what is the best laptop for engineering students?

Angular Javascript del: Questions

__del__

How can I make a time delay in Python?

5 answers

I would like to know how to put a time delay in a Python script.

2973

Answer #1

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

Here is another example where something is run approximately once a minute:

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

2973

Answer #2

You can use the sleep() function in the time module. It can take a float argument for sub-second resolution.

from time import sleep
sleep(0.1) # Time in seconds

Angular Javascript del: Questions

__del__

How to delete a file or folder in Python?

5 answers

How do I delete a file or folder in Python?

2639

Answer #1

os.remove() removes a file.
os.rmdir() removes an empty directory.
shutil.rmtree() deletes a directory and all its contents.

Path objects from the Python 3.4+ pathlib module also expose these instance methods:

pathlib.Path.unlink() removes a file or symbolic link.
pathlib.Path.rmdir() removes an empty directory.

We hope this article has helped you to resolve the problem. Apart from Angular Javascript, check other __del__-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:

Chen Nickolson

California | 2023-03-22

Maybe there are another answers? What Angular Javascript exactly means?. Checked yesterday, it works!

Olivia Zelotti

Shanghai | 2023-03-22

resource Python module is always a bit confusing 😭 Angular Javascript is not the only problem I encountered. I am just not quite sure it is the best method

Jan Danburry

California | 2023-03-22

Maybe there are another answers? What Angular Javascript exactly means?. I am just not quite sure it is the best method