EmberJS - Template Input Helper Text Areas

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It is a multi-line text form field where a user can enter unlimited number of characters. The textarea binds the value of text to the current context.

The {{textarea}} supports the following properties −

• value
• name
• rows
• cols
• placeholder
• disabled
• maxlength
• tabindex
• selectionEnd
• selectionStart
• selectionDirection
• wrap
• readonly
• autofocus
• form
• spellcheck
• required

Syntax

{{textarea value = name cols = "width_of_textarea" rows = "number_of_lines"}}

Example

The example given below specifies multi-line text input control to enter unlimited number of characters. Create a route with name as textarea and open the router.js file to define the URL mappings −

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend ({
   location: config.locationType,
   rootURL: config.rootURL
});

Router.map(function() {
   this.route('textarea');
});

export default Router;

Open the file application.hbs file created under app/templates/ with the following code −

<h2>Input Helper Textarea</h2>
{{#link-to 'textarea'}}Click Here{{/link-to}}
{{outlet}}

When you click the link, page should open the textarea.hbs file, which contains the following code −

Enter text here: <br/><br/>{{textarea value = name cols = "15" rows = "5" 
   placeholder = "Message"}}<br/>
<button {{action "send"}}>Send</button>
{{outlet}}

Open the textarea.js file created under app/routes/ with the following code −

import Ember from 'ember';

export default Ember.Route.extend({
   model: function () {
      return Ember.Object.create ({
         name: null
      });
   }
});

Now open the textarea.js file created under app/controllers/ with the following code −

import Ember from 'ember';

export default Ember.Controller.extend({
   actions: {
      send: function () {
         document.write('Entered text is: ' + this.get('name'));
      }
   }
});

Output

Run the ember server; you will receive the following output −

When you click on the link, a textarea will get display, enter the text and click on the send button −

Now click the send button, it will display the result as shown in the screenshot below −