Below are the list of angular 5 interview questions and their answers
NPM stands for node package manager. It is used for installing dependencies for javascript packages.
Angular CLI is Command Line Interface for Angular that runs Webpack.You can use npm install -g @angular/cli command to install angular CLI.
After installing Angular CLI run ng new project-name command to create a new Angular project.
Decorators are functions that adds metadata to class members and functions. It was proposed in ES2016 and implemented in Typescript.
Angular 5 supports four types of Data Binding They are
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
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.
Simply use below syntax to import a module in Angular5.
import { ModuleName } from 'someWhere';
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.
double curly brackets like {{}} are used form data interpolation in Angular5.
*ngFor directive is used for Iterating over a list of items and for Generating a new DOM element for each one.
Webpack is module bundler Bundler for Angular2 or above. It bundles, minifies and transpiles an Angular application.
Transpiling is a process of converting code from one language to another. In Angular, Traceur compiler is used for converting TypeScript to JavaScript so that browsers can understand.
In Angular component life cycle in Angular goes through the following stages.
NgModule is a decorator function in Angular that takes a single metadata object whose properties describe the module.
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