Question: Could you explain the difference between Angular expressions and JavaScript expressions?
Answer: Although both Angular expressions and JavaScript expressions can contain literals, operators, and variables, there are some notable dissimilarities between the two. Important differences between Angular expressions and JavaScript expressions are enlisted below: Angular expressions support filters while JavaScript expressions do not
It is possible to write Angular expressions inside the HTML tags. JavaScript expressions, contrarily, can’t be written inside the HTML tags
While JavaScript expressions support conditionals, exceptions, and loops, Angular expressions don’t
Question: What is Data Binding? How many ways it can be done?
Answer: In order to connect application data with the DOM (Data Object Model), data binding is used. It happens between the template (HTML) and component (TypeScript). There are 3 ways to achieve data binding: Event Binding – Enables the application to respond to user input in the target environment
Property Binding – Enables interpolation of values computed from application data into the HTML
Two-way Binding – Changes made in the application state gets automatically reflected in the view and vice-versa. The ngModel directive is used for achieving this type of data binding.
Question: What is Angular?
Answer: Angular is a TypeScript-based open-source web application framework, developed and maintained by Google. It offers an easy and powerful way of building front end web-based applications. Angular integrates a range of features like declarative templates, dependency injection, end-to-end tooling, etc. that facilitates web application development.
Question: What are directives in Angular?
Answer: Directives are one of the core features of Angular. They allow an Angular developer to write new, application-specific HTML syntax. In actual, directives are functions that are executed by the Angular compiler when the same finds them in the DOM. Attribute Directives Component Directives Structural Directives
Question:What is Angular mainly used for?
Angular is typically used for the development of SPA which stands for Single Page Applications. Angular provides a set of ready-to-use modules that simplify the development of single page applications. Not only this, with features like built-in data streaming, type safety, and a modular CLI, Angular is regarded as a full-fledged web framework.
Question: What are templates in Angular?
Templates in Angular are written with HTML that contains Angular-specific elements and attributes. These templates are combined with information coming from the model and controller which are further rendered to provide the dynamic view to the user.
Question: What are the Angular Modules?
All the Angular apps are modular and follow a modularity system known as NgModules. These are the containers which hold a cohesive block of code dedicated specifically to an application domain, a workflow, or some closely related set of capabilities. These modules generally contain components, service providers, and other code files whose scope is defined by the containing NgModule. With modules makes the code becomes more maintainable, testable, and readable. Also, all the dependencies of your applications are generally defined in modules only.
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