# `in`

## Description

Return `true` if a given value matches any value in a list of candidates, otherwise return `false`.

## Syntax

Like many functions in DataPrime, `in` supports [two notations](https://coralogix.com/docs/dataprime/language-reference/functions-reference/index.md), **function** and **method** notation. These interchangeable forms allow flexibility in how you structure expressions.

```dataprime
in(comparand: any, value: any, ...values: any): bool
```

```dataprime
(comparand: any).in(value: any, ...values: any): bool
```

## Arguments

| Name      | Type | Required | Description                              |
| --------- | ---- | -------- | ---------------------------------------- |
| comparand | any  | **true** | The value to check                       |
| value     | any  | **true** | The first candidate to compare against   |
| ...values | any  | **true** | Additional candidates to compare against |

## Example

**Use case: Flag membership in a predefined group**

A team name can be compared against a list of department members to determine if it belongs to Engineering.

### Example data

```json
{
    "team": "Developers"
},
{
    "team": "Marketing"
},
{
    "team": "QA Testing"
}
```

### Example query

```dataprime
create is_in_engineering from in(team, 'Developers', 'QA Testing', 'Front End Engineers', 'DevOps Team')
```

```dataprime
create is_in_engineering from team.in('Developers', 'QA Testing', 'Front End Engineers', 'DevOps Team')
```

### Example output

```json
{
    "team": "Developers",
    "is_in_engineering": true
},
{
    "team": "Marketing",
    "is_in_engineering": false
},
{
    "team": "QA Testing",
    "is_in_engineering": true
}
```