The Angular CLI is a command-line interface tool that you use to initialize, develop, scaffold, and maintain Angular applications directly from a command shell.
Indeed, What is render in Angular?
Advertisements. Server side Rendering (SSR) is a modern technique to convert a Single Page Application (SPA) running in the browser into a server based application. Usually, in SPA, the server returns a simple index. html file with the reference to the JavaScript based SPA app.
Then, What is lazy loading in Angular? Lazy loading is the process of loading components, modules, or other assets of a website as they’re required. Since Angular creates a SPA (Single Page Application), all of its components are loaded at once. This means that a lot of unnecessary libraries or modules might be loaded as well.
What is metadata in Angular? Metadata is used to decorate a class so that it can configure the expected behavior of the class. Following are the different parts for metadata. Annotations − These are decorators at the class level. This is an array and an example having both the @Component and @Routes decorator.
In the same way What is pipe in Angular? Pipes are a useful feature in Angular. They are a simple way to transform values in an Angular template. There are some built in pipes, but you can also build your own pipes. A pipe takes in a value or values and then returns a value.
What is Ivy in Angular?
Ivy is a complete rewrite of Angular’s rendering engine. In fact, it is the fourth rewrite of the engine and the third since Angular 2. But unlike rewrites two and three, Ivy promises huge improvements to your application. With Ivy, you can compile components more independently of each other.
What is imports in Angular?
An import is what you put in the imports property of the @NgModule decorator. It enables an Angular module to use functionality that was defined in another Angular module. An export what you put is the exports property of the @NgModule decorator.
What is guard in Angular?
Guards in Angular are nothing but the functionality, logic, and code which are executed before the route is loaded or the ones leaving the route. Different types of guards, CanActivate guard (e.g. it checks route access). CanActivateChild guard (checks child route access).
What is injection in Angular?
Dependency injection, or DI, is a design pattern in which a class requests dependencies from external sources rather than creating them. Angular’s DI framework provides dependencies to a class upon instantiation. Use Angular DI to increase flexibility and modularity in your applications.
What is root injector in Angular?
We call this root Injector. This Injector becomes the root of the ElementInjector tree. The Root Component contains all other components. Angular App will create child components under the Root Component. All these child component can have their own child components creating a tree of components.
What is decorators in Angular?
Decorators are a design pattern that is used to separate modification or decoration of a class without modifying the original source code. In AngularJS, decorators are functions that allow a service, directive or filter to be modified prior to its usage.
What is filters in Angular?
Filter is an important part in AngularJS as well as Angular 2 or Angular 4. It is basically used to filter an item from a group of items, which are there in an array or an object array. It selects a subset of the items from an array and returns it as a new array and this item is displayed on UI.
How Angular is reactive?
An Angular application is a reactive system. The user clicks on a button, the application reacts to this event and updates the model. The model gets updated, the application propagates the changes through the component tree. Angular implements these two arrows very differently.
What is interpolation in Angular?
Text interpolation lets you incorporate dynamic string values into your HTML templates. Use interpolation to dynamically change what appears in an application view, such as displaying a custom greeting that includes the user’s name.
What is IV in Angular?
Ivy is a complete rewrite of Angular’s rendering engine. In fact, it is the fourth rewrite of the engine and the third since Angular 2. But unlike rewrites two and three, which you might not have even noticed, Ivy promises huge improvements to your application.
What is Webpack in Angular?
Create Angular applications with a Webpack based tooling. Webpack is a popular module bundler, a tool for bundling application source code in convenient chunks and for loading that code from a server into a browser.
What is IV compiler?
Ivy Compiler is the latest compiler for Angular application released by Angular Team. Currently, Angular is using View Engine compiler to compile Angular application. In general, Angular compiler has two options to compile an application.
Why export is used in Angular?
Similarly, the export keyword lets you declare variables, functions, and classes that the module should be exposed to other scripts. Using the export keyword, you can make selected APIs available to other modules. A module’s functions, variables, and classes that aren’t explicitly exported remain private to the module.
What is declaration in Angular?
Angular Concepts
declarations are to make directives (including components and pipes) from the current module available to other directives in the current module. Selectors of directives, components or pipes are only matched against the HTML if they are declared or imported.
What is injector in Angular?
Injectors are data structures that store instructions detailing where and how services form. They act as intermediaries within the Angular DI system. Module, directive, and component classes contain metadata specific to injectors. A new injector instance accompanies every one of these classes.
Don’t forget to share this post !