> For the complete documentation index, see [llms.txt](https://docs.atfinity.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.atfinity.io/rule-language/operators/boolean-operators/truthy.md).

# truthy

{% hint style="info" %}
**New in Atfinity 17.**
{% endhint %}

### Description

`truthy` converts a value into a boolean, returning `true` only for values that clearly represent "true". It is useful when a value comes in as a number or a string (for example from an imported field) and you want to interpret it as a boolean.

`truthy` returns `true` for:

* the boolean `true`
* the number `1`
* the strings `"1"` and `"true"` — case-insensitive and trimmed of surrounding whitespace (so `" TRUE "` also counts)

For **any other value** it returns `false`. In particular, numbers other than `1` (such as `2`) and unrecognised strings (such as `"yes"` or `"maybe"`) are **not** truthy.

If the value is `unknown`, the result is `unknown`.

{% hint style="warning" %}
`truthy` and [`falsy`](/rule-language/operators/boolean-operators/falsy.md) are not exact opposites. A value like `2` or `"maybe"` is **neither** truthy nor falsy — both operators return `false` for it.
{% endhint %}

### Examples

```
truthy(true)        // => true
truthy(1)           // => true
truthy('1')         // => true
truthy('true')      // => true
truthy('  TRUE  ')  // => true

truthy(false)       // => false
truthy(0)           // => false
truthy(2)           // => false
truthy('maybe')     // => false
```


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