Angularjs Interview Questions And Answers
Angularjs Interview Questions And Answers
History of Angularjs [ angularjs interview questions]?
Angular was created at Google to solve Google-scale problems. To Google, this means millions of lines of code, thousands of engineers, widely varying project schedules, requirements, and workflows.
The platform is designed to enable you to build and manage shared code and to divide work among appropriate roles.
What is Angularjs?
AngularJS is a structural framework for dynamic web applications. It lets you use HTML as your template language and lets you extend HTML’s syntax to express your application components clearly and succinctly. Its data binding and dependency injection eliminate much of the code you currently have to write.
What is Angularjs Features?
angularjs interview questions
Here is the list of features:
• Model View Controller (MVC) Framework. MVC is a software design pattern for developing web applications.
• User interface with HTML. User interfaces in AngularJS are built on HTML.
• POJO Model.
• Active community on Google.
• Two-way binding.
What are the Benefits of Angularjs?
• Improved Design Architecture.
• Promotes Code Re-usability.
• Better Plug & Play Components.
• Faster application development.
• Handles Dependencies.
• Allows Parallel Development.
• Allows Controls to Developers.
• Helps Manage State.
• angularjs interview questions
Why to choose Angularjs?
The Angularjs framework consists of an integrated toolset that will help you to build well-structured, rich client-side applications in a modular fashion with less code and more flexibility.
AngularJS extends HTML by providing directives that add functionality to your markup and allow you to create powerful dynamic templates. You can also create your own directives, crafting reusable components that fill your needs and abstracting away all the DOM manipulation logic.
angularjs interview questions
Below are some reasons for choosing Angularjs,
Easy to Learn,and It has a Two-Way Binding Feature.
Supports SPA features, and is also supported by Google.
Has a Declarative UI.
Allows for Optimal Web Application Management.
It is a Powerful Framework.
What is the main purpose of AngularJS?
AngularJS is a structural framework for dynamic web apps. With AngularJS, designers can use HTML as the template language and it allows for the extension of HTML’s syntax to convey the application’s components effortlessly. Angular makes much of the code you would otherwise have to write completely redundant.
What are the Directives used in Angularjs?
Directives are nothing but the markers on a DOM element, which tell the compiler to attach a specified event or behavior (angularjs interview questions) to that element.
Below are few directives mentioned:
ng-app: Initiates an AngularJS application
ng-init: Initialises application data
ng-model: Defines the model to be used in AngularJS
ng-repeat: Repeats HTML elements for each item in a collection
ng-bind: Binds the data to the element and is an alternative to the interpolation directive
ng-show: Shows the HTML element
ng-hide: Hides the model element
ng-switch: Used to add or remove elements from DOM, based on data
ng-if: Same as a switch, just has a simpler syntax
ng-include: Includes the HTML elements from other files.
What is the future of AngularJS?
We expect that AngularJS applications that work now will continue to work in the future. All published versions of AngularJS on npm and bower will continue to be available. The framework will receive updates that cover security issues.
What are the Basic elements of Angularjs [ angularjs interview questions]?
Below are the major elements involved in Angularjs.
A single-page application is one that has a shell page and contains multiple views on the page.
A ‘Hello World’ example.
ng-app: This attribute stands for the active portion of the entire page.
What is MVC architecture in angularjs?
MVC stands for Model View Controller. It is a software design pattern for developing web applications. It is very popular because it isolates the application logic from the user interface layer and supports the separation of concerns.
The MVC pattern is made up of the following three parts:
Model: It is responsible for managing application data. It responds to the requests from view and to the instructions from the controller to update itself.
View: It is responsible for displaying all data or only a portion of data to the users. It also specifies the data in a particular format triggered by the controller’s decision to present the data.
They are script-based template systems such as JSP, ASP, PHP and are very easy to integrate with AJAX technology.
Controller: It is responsible to control the relation between models and views. It responds to user input and performs interactions on the data model objects.
The controller receives input, angularjs interview questions validates it, and then performs business operations that modify the state of the data model.
How does AngularJS work with MVC architecture?
The controller receives input, validates it, and then performs business operations that modify the state of the data model. AngularJS is an MVC-based framework.
Frequently Asked Questions:
Do companies still use AngularJS?
What is MVC application life cycle?
What is difference between MVC and angular?
Is Angular good for the job?
Is there any certification for AngularJS?
Is AngularJS easy to learn?
I hope my guidance was good, and the information provided by me was helpful.
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Question and Answer
Master data management (MDM) is a comprehensive method of enabling an enterprise to link all of its critical data to one file, called a master file, that provides a common point of reference. When properly done, MDM streamlines data sharing among personnel and departments.
- There are two types of table involved in Dimensional Modeling and this model concept is different from the third normal form. Dimensional data model concept makes use of facts table containing the measurements of the business and dimension table containing the measurement context.
A data movement mode determines how the power center server handles the character data. We choose the data movement in the Informatica server configuration settings. Two types of data movement modes available in Informatica.
It’s a matter of awareness and the problem becoming urgent. We are seeing budgets increased and greater success in closing deals, particularly in the Pharmaceutical and Financial services industries. Forrester predicts MDM will be $6 billion markets by 2010, which is a 60 percent growth rate over the $1 billion MDM market last year. Gartner forecasted that 70 percent of Global 2000 companies will have an MDM solution by the year 2010. These are pretty big numbers
We can export repository and import into the new environment
We can use Informatica deployment groups
We can Copy folders/objects
We can Export each mapping to XML and import in a new environment
It is a repository object that helps in generating, modifying or passing data. In a mapping, transformations make a representation of the operations integrated with service performs on the data. All the data goes by transformation ports that are only linked with maple or mapping.
Foreign keys of dimension tables are the primary keys of entity tables.
Foreign keys of facts tables are the primary keys of dimension tables.
A Mapplet is a reusable object that contains a set of transformations and enables to reuse that transformation logic in multiple mappings.
There are two different ways to load data in dimension tables.
Conventional (Slow) – All the constraints and keys are validated against the data before, it is loaded; this way data integrity is maintained.
Direct (Fast) – All the constraints and keys are disabled before the data is loaded. Once data is loaded, it is validated against all the constraints and keys. If data is found invalid or dirty it is not included in the index and all future processes are skipped on this data.
Designed by Informatica Corporation, it is data integration software providing an environment that lets data loading into a centralized location like a data warehouse. From here, data can be easily extracted from an array of sources, also can be transformed as per the business logic and then can be easily loaded into files as well as relation targets.
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