How to bind a textarea value to a model in ember.js?

@arnoldo.moen 

In Ember.js, you can bind a textarea value to a model by using the {{textarea}} helper along with the value attribute. Here is an example of how you can bind a textarea value to a model in Ember.js:

1. Define a model in your Ember.js application:

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// app/models/note.js

import Model from 'ember-data/model';
import attr from 'ember-data/attr';

export default Model.extend({
  content: attr('string')
});

1. Create a textarea in your template and bind its value to the model's content property using the {{textarea}} helper:

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<!-- app/templates/note.hbs -->

{{textarea value=model.content rows=10}}

1. Update the controller or component associated with the template to define the model and set its content property:

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// app/controllers/note.js

import Ember from 'ember';

export default Ember.Controller.extend({
  model: Ember.computed(function() {
    return this.store.createRecord('note', {
      content: 'Enter your note here'
    });
  })
});

1. When the user enters text in the textarea, the model's content property will automatically be updated. You can access the value of the textarea in your controller or component by accessing the model's content property:

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this.get('model.content');

By following these steps, you can bind a textarea value to a model in Ember.js and easily update the model's properties based on user input.