# Filtering Algorithm

You can modify the default filtering algorithm per column using the `filterAlgorithm` option. For "fake" template columns which are not backed up by a real corresponding property this is a necessity, if you wish the column to be included in the search (either in generic mode or by column).

E.g, Say you have template column called `full_name` which combines first and last names; you can define the search algorithm like so:

```javascript
filterAlgorithm: {
  full_name(row, query) {
    return (row.first_name + ' ' + row.last_name).includes(query);
  }
}
```

{% hint style="info" %}
You can use the `this` keyword  inside the function to refer to the vue instance where the table is embedded
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://ryunosukee.gitbook.io/vue3-datatables/client-table/filtering-algorithm.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.