Ember Foundations — Chapter Quiz

Question 1

1

What is Ember.js best described as?

AA tiny rendering libraryBA batteries-included SPA framework with strong conventionsCA CSS preprocessorDA server framework like Express

Ember is an opinionated, batteries-included framework for ambitious single-page web apps. Routing, components, data, and testing all ship together.

Question 2

2

Which command scaffolds a fresh Ember project?

Aember init my-appBember create my-appCember new my-appDnpx ember my-app

ember new my-app creates a new project. ember init initializes Ember inside an existing directory.

Question 3

3

Where do component classes live in an Ember Octane app?

Asrc/components/Bapp/components/Ccomponents/Dlib/components/

Ember projects use the app/ folder by convention with sub-folders like components/, routes/, services/, templates/.

Question 4

4

Octane is Ember's latest programming model — Glimmer components, @tracked, native classes, and decorators.

TTrueFFalse

Octane (Ember 3.15+) introduced Glimmer components, tracked properties, and the modern decorator-based authoring model that is standard today.

Question 5

5

What does ember serve do?

ABuilds and uploads the app to a CDNBRuns the test suite onceCStarts a dev server with live reload at :4200DGenerates a service file

ember serve starts the development server at localhost:4200 with live reload — your default during development.

Question 6

6

The reactivity decorator that marks a class field as reactive is @___.

@tracked from @glimmer/tracking makes a class field reactive — writes invalidate any template or getter that read it.

Question 7

7

Which of these are top-level pieces of an Ember app?

Select all that apply.

Ember's core building blocks are routes, components, services, and templates. Reducers belong to Redux, not Ember.

Question 8

8

What is the role of ember-cli?

AA runtime for Ember apps in productionBThe build, generator, and dev-server tool for Ember projectsCA documentation generatorDAn ORM for Ember Data

ember-cli is the toolchain — scaffolding (ember new, ember generate), the dev server (ember serve), the build pipeline (ember build), and the test runner.

Test what you learned.