> For the complete documentation index, see [llms.txt](https://docs.adapptio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.adapptio.com/reference-guide/functions/generators.md).

# Generators

### Generate Range

Returns a generated array within a given range by steps.

#### Expression:

**GEN\_RANGE**(*from*: number, *to*: number, step?: number)

#### Return:

array\[]

#### Example of usage:

```javascript
GEN_RANGE(1, 100, 10)

Return value:
[1,11,21,31,41,51,61,71,81,91]
```

### Generate UUID

Returns a generated UUID v4.

#### Expression:

**UUID**()

#### Return:

string

#### Example of usage:

```javascript
UUID()

Return value:
"0eccbfbc-7956-48bf-aecf-fefe1092f512" // generated randomly
```