> For the complete documentation index, see [llms.txt](https://docs.r.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.r.xyz/glider-ide/api/function/function.is_pure.md).

# Function.is\_pure()

`is_pure() → bool`

## Example

```python
from glider import *

def query():
    pure_functions = (
      Functions()
      .exec(100)
      .filter(lambda x: x.is_pure())
    )

    return pure_functions
```

## Output

<figure><img src="/files/rvIYDyah8STZ67jgL6EA" alt=""><figcaption></figcaption></figure>