Vfrdtyky

I have a javascript object

this.attributes = {

            key: value,

            // etc..

        }

I would like to iterate through it and output key:value

Here is my solution:

import Ember from 'ember';



export default Ember.Component.extend({

init() {

    this._super(...arguments);

    this.attributes = {

        'SKU': '123',

        'UPC': 'ABC',

        'Title': 'Hour Glass'

       }



},



ProductAttributes: Ember.computed('attributes', function() {



    var attribs = this.get('attributes');

    var kvp = Object.keys(attribs).map(key => {

        return {

            'attribute_name': key,

            'attribute_value': attribs[key]

        };

    });

    return kvp;

})});

The template I came up with:

{{#each ProductAttributes as |attribute|}}

    {{attribute.attribute_name}} : {{attribute.attribute_value}}

{{/each}}

I am not happy with this solution since it looks cumbersome: first I convert object into an array of auxiliary objects with non-dynamic keys attribute_name and attribute_value, and then I references non-dynamic names directly within my template.

It works fine but is there a better way of doing this?

My suggestion for this is not that different from the solution you had already described in the question explanation; but my suggestion will provide a you a more reusable and more each-in helper-like approach:

How about creating a tagless contextual component with a positional param named each-in-component and moving all the computed property definition to that component. I am using kind of Ember 2.x syntax but I guess Ember 1.x will not be very different; so that component will be sth. like:

import Ember from 'ember';



export default Ember.Component.extend({

  objectProperties: Ember.computed('object', function() {

    let object = this.get('object');

    return Object.keys(object).map(key => {

        return {

            'key': key,

            'value': Ember.get(object, key)

        };

    });

  }),



  tagName: ''

}).reopenClass({

  positionalParams: ['object']

});

and the corresponding component template will be yielding the computed property array:

{{#each objectProperties as |objectProperty|}}

    {{yield objectProperty.key objectProperty.value}}

{{/each}}

So you can now use that component just like regular each-in; which does not exist in Ember 1.x.

{{#each-in-component attributes as |key value|}}

    {{key}} : {{value}}<br>

{{/each-in-component}}

With this approach; you can re-use the very same component multiple times and the code you did not want to have in your very own component will be lying within each-in-component. I have wrapped up my solution to illustrate it in action in the following twiddle. I hope it works.