---
title: UnusedDocParam
description: Ensures LiquidDoc parameters provided are used within snippet files.
source_url:
  html: >-
    https://shopify.dev/docs/storefronts/themes/tools/theme-check/checks/unused-doc-param
  md: >-
    https://shopify.dev/docs/storefronts/themes/tools/theme-check/checks/unused-doc-param.md
api_name: liquid
---

# Unused​Doc​Param

The parameters defined within the `doc` tag must be used within the scope of the variable.

***

## Examples

The following examples contain code snippets that either fail or pass this check.

### ✗ Fail

The following example shows `some_str` LiquidDoc parameter not being used within the snippet:

## snippets/snippet.liquid

```liquid
{% doc %}
  @param {string} some_str
  @param {number} some_num
{% enddoc %}


{{ some_num }}
```

### ✓ Pass

The following example shows valid uses of LiquidDoc parameters:

## snippets/snippet.liquid

```liquid
{% doc %}
  @param {string} some_str
  @param {number} some_num
  @param {boolean} some_bool
{% enddoc %}


<div className="css-{{ some_str }}"></div>


{% if some_bool %}
  {{ some_num | plus 5 }}
{% endif %}
```

***

## Options

The following example contains the default configuration for this check:

```yaml
UnusedDocParam:
enabled: true
severity: warning
```

| Parameter | Description |
| - | - |
| `enabled` | Whether this check is enabled. |
| `severity` | The [severity](https://shopify.dev/docs/storefronts/themes/tools/theme-check/configuration#check-severity) of the check. |

***

## Disabling this check

Disabling this check isn't recommended.

***