# set.contains · Rell standard library · Chromia Docs (concept)

> pure function contains(value: T): boolean Check if this collection contains the given element. Parameters value — the element to look up Returns true if th

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/set/contains/

FUNCTION

# set.contains

```signature
pure function contains(value: T): boolean
```

Check if this collection contains the given element.

**Parameters**

* **value** — the element to look up

**Returns**

`true` if this collection contains the given element, `false` otherwise

Since 0.6.0

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/%5Broot%5D/set/contains.html)Generated API reference, mirrored from the live docs