---
title: "binEnum"
---

# binEnum

> **This function is used by Ignition's Expression language.**

## Description
This function, whose name stands for "binary enumeration", takes a list of booleans, and returns the index (starting at 1) of the first parameter that evaluates to true. This can be a very handy tool to convert bits into an integer code to drive the Component Styles feature.
## Syntax
`binEnum(value[, value...])`

- Parameters

    - int **value** - Any number of values.

- Results
    - int - The index of the first true value.

## Examples
```python title="Code Snippet"
binEnum(0, 1, 0) //returns 2
```

```python title="Code Snippet"
binEnum(0, false, 15, 0, 23) //returns 3 (the index of the 15 - any non-zero number is "true")
```