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    Angular provides the Router service to help you define navigation paths among views The router provides sophisticated in-browser navigational capabilities See the Angular Glossary for basic definitions of important Angular terms and usage For the sample application that this page describes, see the live example download example
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    Angular is a platform for building mobile and desktop web applications Join the community of millions of developers who build compelling user interfaces with Angular
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    Dependency injection, or DI, is one of the fundamental concepts in Angular DI is wired into the Angular framework and allows classes with Angular decorators, such as Components, Directives, Pipes, and Injectables, to configure dependencies that they need Two main roles exist in the DI system: dependency consumer and dependency provider Angular facilitates the interaction between dependency consumers and dependency providers using an abstraction called Injector When a dependency is
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    A component has a lifecycle managed by Angular Angular creates it, renders it, creates and renders its children, checks it when its data-bound properties change, and destroys it before removing it from the DOM Angular offers lifecycle hooks that provide visibility into these key life moments and the ability to act when they occur
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    Angular is a framework for building client applications in HTML and either JavaScript or a language like TypeScript that compiles to JavaScript The framework consists of several libraries, some of them core and some optional You write Angular applications by composing HTML templates with Angularized markup, writing component classes to manage those templates, adding application logic in services, and boxing components and services in modules Then you launch the app by bootstrapping the
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    Dependency Injection is a powerful pattern for managing code dependencies In this cookbook we will explore many of the features of Dependency Injection (DI) in Angular Table of contents Application-wide dependencies External module configuration @Injectable and nested service dependencies Limit service scope to a component subtree Multiple service instances (sandboxing) Qualify dependency lookup with @Optional and @Host Inject the component's DOM element Define dependencies with providers
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    Provides services that other application components can use Every Angular application has at least one module, the root module You bootstrap that module to launch the application The root module is all you need in an application with few components





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