Assetic: how to include javascript file only for dev environment?

Question

I want to add Javascript file that should be loaded in dev environment only, not in prod.

{% javascripts '@AppBundle/Resources/public/js/*' %}
<script src="{{ asset_url }}"></script>
{% endjavascripts %}

How can I modify this example to disable it's loading in prod?

Answer 1

Use {{ app.environment }}

Try this :

{% if app.environment == 'dev' %}
    {% javascripts '@AppBundle/Resources/public/js/*' %}
    <script src="{{ asset_url }}"></script>
    {% endjavascripts %}
{% endif %}