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Is if statement necessary for empty array situation? – Shopify

I’m using Shopify Liquid.
If I don’t include {% if my_array %} and have a code such as this:

{% for var in my_array %}
Do this heavy task
{% endif %}

does it skip the "heavy task" if my_array is empty or is it better to include the if statement (performance wise)?
Thank you.

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3

Answers


  1. Chosen as BEST ANSWER
    0

    Thank you for your answers, but I found this from Shopify developers documents. According to Shopify, {% for var in my_array %} also acts like an if statement, which can be combined with {% else %} for when the array is empty. for example:

    {% for var in my_array %}
Do this heavy task
{% else %}
<p>This array is empty</p>
{% endfor %}

    Hope this helps others searching for it too.


  2. 0

    Since you’re writing it in liquid, you won’t see any performance issues since the result will already be written when the page loads.

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  3. 0

    If you only need to check whether it is empty or not

    {% if my_array !== blank %}
Do this heavy task
{% else %}
<p>This array is empty</p>
{% endif %}
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