# or: when at least one condition must be true

[Syntax and values](README.md)

## Behavior and details

Use `or` to ask whether at least one question has a true answer. Both values it checks must be Booleans. An **operand** is simply a value an operator works with: the parts to the left and right of `or`.

If the left answer is `true`, the whole answer is already known, so Pliro skips the right part. This is [short-circuiting](../concepts/short-circuiting.md). A skipped part also skips any function call it contains. `or` has the lowest operator priority; comparisons and `and` group before it. Numbers, text, and collections are not automatically turned into yes-or-no answers.

## Example

```pliro
# language: en
let items = []
say length(items) == 0 or items[0] == 1
```

## Related entries

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