Angularjs Study Cards

Enhance Your Understanding with AngularJS Concept Cards for quick learning



AngularJS

A JavaScript-based open-source front-end web application framework developed by Google for building dynamic web applications.

Directives

AngularJS directives are markers on a DOM element that tell AngularJS's HTML compiler to attach a specified behavior to that DOM element or even transform the DOM element and its children.

Controllers

In AngularJS, controllers are JavaScript functions that are responsible for defining the behavior of a part of the application.

Services

AngularJS services are singleton objects or functions that are used for carrying out specific tasks, such as fetching data from a server, performing calculations, or sharing data between controllers.

Filters

AngularJS filters are used to format the value of an expression for display to the user. They can be used in templates, controllers, or services.

Routing

AngularJS routing allows you to define different routes for different parts of your application, enabling navigation between views and loading content dynamically.

Forms

AngularJS provides powerful form validation and manipulation capabilities, making it easier to handle user input and create interactive forms.

Data Binding

AngularJS's two-way data binding feature allows automatic synchronization of data between the model and the view, making it easier to keep the UI in sync with the underlying data.

Scope

In AngularJS, the scope is an object that refers to the application model. It acts as a glue between the controller and the view, allowing them to communicate with each other.

Modules

AngularJS modules are containers for different parts of an application, such as controllers, services, filters, directives, etc. They help in organizing and managing the application's components.

Dependency Injection

AngularJS's dependency injection system allows you to declare the dependencies of your components and have them automatically injected by the framework, promoting modularity and testability.

Testing AngularJS Applications

AngularJS provides a testing framework called Jasmine, along with tools like Karma, for writing and running tests on AngularJS applications to ensure their correctness and robustness.

Best Practices

AngularJS has a set of recommended best practices that help in writing clean, maintainable, and performant code. Following these practices can improve the quality of your AngularJS applications.

Performance Optimization

AngularJS provides various techniques and strategies for optimizing the performance of your applications, such as minimizing DOM manipulation, using one-time binding, and optimizing digest cycles.

Debugging Techniques

AngularJS provides tools and techniques for debugging applications, including the use of browser developer tools, logging, and the AngularJS Batarang extension.

AngularJS Version History

AngularJS has gone through several major versions, with each version introducing new features, improvements, and bug fixes. Understanding the version history can help in choosing the right version for your project.

AngularJS vs Angular

AngularJS and Angular are two different frameworks for building web applications. Angular is a complete rewrite of AngularJS and introduces significant changes and improvements in terms of performance, modularity, and developer experience.

Two-Way Data Binding

AngularJS's two-way data binding allows automatic synchronization of data between the model and the view. Any changes in the model are immediately reflected in the view, and vice versa.

ng-repeat

The ng-repeat directive is used in AngularJS to repeat a set of HTML elements for each item in an array or an object. It simplifies the process of rendering dynamic lists or tables.

ng-click

The ng-click directive is used to bind a click event to an HTML element in AngularJS. It allows you to specify a function to be executed when the element is clicked.

ng-model

The ng-model directive is used to bind the value of an HTML input element to a property in the AngularJS model. It enables two-way data binding between the view and the model.

ng-show

The ng-show directive is used to conditionally show or hide an HTML element based on an expression. If the expression evaluates to true, the element is displayed; otherwise, it is hidden.

ng-hide

The ng-hide directive is used to conditionally hide or show an HTML element based on an expression. If the expression evaluates to true, the element is hidden; otherwise, it is displayed.

ng-if

The ng-if directive is used to conditionally render an HTML element based on an expression. If the expression evaluates to true, the element is added to the DOM; otherwise, it is removed.

ng-class

The ng-class directive is used to conditionally apply CSS classes to an HTML element based on an expression. It allows you to dynamically change the appearance of elements based on certain conditions.

ng-style

The ng-style directive is used to conditionally apply CSS styles to an HTML element based on an expression. It allows you to dynamically change the style of elements based on certain conditions.

ng-submit

The ng-submit directive is used to bind a submit event to an HTML form in AngularJS. It allows you to specify a function to be executed when the form is submitted.

ng-options

The ng-options directive is used to generate a list of HTML options for a select element in AngularJS. It allows you to bind the options to a collection in the model and specify the display and value properties.

ng-init

The ng-init directive is used to initialize a variable or an expression in AngularJS. It allows you to set an initial value for a variable or perform some initialization logic.

ng-bind

The ng-bind directive is used to bind the content of an HTML element to an expression in AngularJS. It allows you to dynamically update the content of elements based on changes in the model.

ng-cloak

The ng-cloak directive is used to prevent the AngularJS template from being displayed before the application has finished loading and compiling. It helps in avoiding the display of raw template markup.

ng-include

The ng-include directive is used to include the content of an external HTML file into the current HTML document in AngularJS. It allows you to reuse HTML code across multiple pages.

ng-bind-html

The ng-bind-html directive is used to bind HTML content to an element in AngularJS. It allows you to dynamically render HTML content, including markup and formatting, from the model.

ng-animate

The ng-animate directive is used to apply animations to HTML elements in AngularJS. It allows you to create smooth transitions and effects when elements are added, removed, or modified.

ng-messages

The ng-messages directive is used to display error messages for form validation in AngularJS. It provides a convenient way to show validation errors based on the state of form controls.

ng-readonly

The ng-readonly directive is used to make an HTML input element read-only in AngularJS. It prevents the user from modifying the value of the input field.

ng-disabled

The ng-disabled directive is used to disable an HTML element in AngularJS. It prevents the user from interacting with the element, such as clicking buttons or entering text in input fields.

ng-selected

The ng-selected directive is used to pre-select an option in a select element in AngularJS. It allows you to set the selected attribute based on an expression.

ng-checked

The ng-checked directive is used to check or uncheck a checkbox or a radio button in AngularJS. It allows you to set the checked attribute based on an expression.

ng-keyup

The ng-keyup directive is used to bind a keyup event to an HTML element in AngularJS. It allows you to specify a function to be executed when a key is released.

ng-mouseover

The ng-mouseover directive is used to bind a mouseover event to an HTML element in AngularJS. It allows you to specify a function to be executed when the mouse pointer is moved over the element.

ng-mouseleave

The ng-mouseleave directive is used to bind a mouseleave event to an HTML element in AngularJS. It allows you to specify a function to be executed when the mouse pointer leaves the element.

ng-focus

The ng-focus directive is used to bind a focus event to an HTML element in AngularJS. It allows you to specify a function to be executed when the element receives focus.

ng-blur

The ng-blur directive is used to bind a blur event to an HTML element in AngularJS. It allows you to specify a function to be executed when the element loses focus.

ng-change

The ng-change directive is used to bind a change event to an HTML element in AngularJS. It allows you to specify a function to be executed when the value of the element changes.