# in — separate loop name and iterable

[Syntax and values](README.md)

## Behavior and details

In a `for` loop, `in` separates the name for the current item from the List or Text you want to visit. That collection is sometimes called an **iterable**: something a loop can go through item by item. An **iteration** is one round of the loop.

Pliro works out the collection once before the loop starts. Each round gets a fresh local name for its current item. `in` is not a separate “does this collection contain this value?” operator; `2 in items` is unsupported. Use a loop and equality checks to [search a list](../guides/searching-lists.md).

## Example

```pliro
# language: en
for item in [1, 2, 3]:
    say item
```

## Related entries

[Syntax and values](README.md) · [Built-ins](../builtins/README.md) · [Programming guides](../guides/README.md)