rarwe.tar.gz

Ember

Ember-copy

ember2

embercss

rarwe

Ember-copy-5yvdqv

Ember-copy-5yvdqv-copy

Ember-Acceptest

Ember-Acceptest-copy

Ember-unitest

rarwe-copy

Ember-Acceptest-challenge

Ember-helper-challenge

In this course, you begin with an introduction to Ember.js, a JavaScript framework for building client-side applications.

After that, the course guides you through the steps of building a real application so that you can see how the concepts are applied in practice. You'll learn about the building blocks of Ember one by one, in a way that crushes the allegedly steep learning curve of the framework.

The application will get shinier (and/or more robust) with each chapter. By the end, we will have a decent app, and you'll have a great new skill you can add to your resume.

Developing Robust Ember.js Applications

## Rendering the list of songs reactively

In the songs template, `songs.hbs`, we render each song in `@model`. However, `@model` is set only once when we enter the corresponding route. When we add the new song to the band, `band.songs` changes, but `{{#each @model as |song|}}` is not re-run because `@model`, itself, didn't change. One way to fix this would be to reset `@model` to the new value, but as the `@` prefix indicates, it's an immutable reference from what was returned from the `model` hook of the route.

A cleaner solution is to iterate over an expression that updates whenever we change the songs of the band. Since we also need to get hold of the band that corresponds to the songs we created, it’s easiest to change the route so that it returns the band object and loop through `@model.songs` in the template:

# Rendering the list of songs reactively

In the songs template, `songs.hbs`, we render each song in `@model`. However, `@model` is set only once when we enter the corresponding route. When we add the new song to the band, `band.songs` changes, but `{{#each @model as |song|}}` is not re-run because `@model`, itself, didn't change. One way to fix this would be to reset `@model` to the new value, but as the `@` prefix indicates, it's an immutable reference from what was returned from the `model` hook of the route.

A cleaner solution is to iterate over an expression that updates whenever we change the songs of the band. Since we also need to get hold of the band that corresponds to the songs we created, it’s easiest to change the route so that it returns the band object and loop through `@model.songs` in the template:

We’ll cover how to render a list of songs in our Ember application in this lesson.

List Rendering 

Course Overview

Getting Started with Ember

Templates and Data Bindings

Routing

Nested Routes

Components

Controllers

Building a Catalog

Talking to a Backend

Advanced Routing

Testing

Query Params

Loading and Error Substates

Helpers

Conclusion

Appendix

List Rendering

Rendering the list of songs reactively