Below are the list of angular 5 interview questions and their answers
Decorators are functions that adds metadata to class members and functions. It was proposed in ES2016 and implemented in Typescript.
In Angular component life cycle in Angular goes through the following stages.
*ngFor directive is used for Iterating over a list of items and for Generating a new DOM element for each one.
AngularJS reads the HTML and compiles it into an internal representation, this reading and compiling is called bootstrapping.
When you write the code to execute the bootstrapping instead of using ng-app directive then it is called manual bootstrapping.
After installing Angular CLI run ng new project-name command to create a new Angular project.
Also, Read Interview questions asked in React Js Interviews
Angular CLI is Command Line Interface for Angular that runs Webpack.You can use npm install -g @angular/cli command to install angular CLI.
Angular5 component is made of a Component decorator and a component definition of a class. ng generate component component_name command is used to generate a component in Angular5.
ng serve command is used to run Angular5 application locally during development. To start development server on specific port ng serve -p aPortNumber command is used.
Also, Read Best Angular 2 interview questions 2017
In Angular5 $event is a reserved keyword that represents the data emitted by an event (event data).It is commonly used as a parameter for event based methods.
Angular 5 supports four types of Data Binding They are
Webpack is module bundler Bundler for Angular2 or above. It bundles, minifies and transpiles an Angular application.
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