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85 lines
1.7 KiB
Markdown
85 lines
1.7 KiB
Markdown
---
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title: Operators
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---
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Liquid includes many logical and comparison operators.
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## Basic Operators
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<table>
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<tbody>
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<tr>
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<td><pre>==</pre></td>
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<td>equals</td>
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</tr>
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<tr>
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<td><pre>!=</pre></td>
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<td>does not equal</td>
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</tr>
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<tr>
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<td><pre>></pre></td>
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<td>greater than</td>
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</tr>
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<tr>
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<td><pre><</pre></td>
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<td>less than</td>
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</tr>
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<tr>
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<td><pre>>=</pre></td>
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<td>greater than or equal to</td>
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</tr>
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<tr>
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<td><pre><=</pre></td>
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<td>less than or equal to</td>
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</tr>
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<tr>
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<td><pre>or</pre></td>
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<td>logical or</td>
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</tr>
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<tr>
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<td><pre>and</pre></td>
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<td>logical and</td>
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</tr>
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</tbody>
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</table>
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For example:
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<div>
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{% highlight liquid %}{% raw %}
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{% if product.title == "Awesome Shoes" %}
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These shoes are awesome!
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{% endif %}
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{% endraw %}{% endhighlight %}
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</div>
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You can use multiple operators in a tag:
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<div>
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{% highlight liquid %}{% raw %}
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{% if product.type == "Shirt" or product.type == "Shoes" %}
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This is a shirt or a pair of shoes.
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{% endif %}
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{% endraw %}{% endhighlight %}
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</div>
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## contains
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`contains` checks for the presence of a substring inside a string.
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{% highlight liquid %}{% raw %}
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{% if product.title contains 'Pack' %}
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This product's title contains the word Pack.
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{% endif %}
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{% endraw %}{% endhighlight %}
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`contains` can also check for the presence of a string in an array of strings.
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{% highlight liquid %}{% raw %}
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{% if product.tags contains 'Hello' %}
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This product has been tagged with 'Hello'.
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{% endif %}
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{% endraw %}{% endhighlight %}
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`contains` is can only search strings. You cannot use it to check for an object in an array of objects.
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