---
title: "if"
description: "This function evaluates the expression condition, and returns the value of trueReturn or falseReturn depending on the boolean value of condition."
---

# if

> This function evaluates the expression condition, and returns the value of trueReturn or falseReturn depending on the boolean value of condition.

**This function is used by Ignition's Expression language.**
## Description
This function evaluates the expression condition, and returns the value of trueReturn or falseReturn depending on the boolean value of condition. Can be nested in one another to make provide multiple layers of logic
## Syntax
`if(condition, trueReturn, falseReturn)`

- Parameters

    - object **condition** - The condition to evaluate.

    - object **trueReturn** - The true return value.

    - object **falseReturn** - The false return value.

- Results
    - object - Returns the trueReturn if the condition is true, falseReturn if it is False.

## Examples
```python title="Code Snippet"
 if(1, "Yes", "No") //would return "Yes"
```
```python title="Code Snippet"
 if(0, "Yes", "No") //would return "No"
```
```python title="Code Snippet"
 if({Root Container.CheckBox.selected}, "Selected", "Not Selected") //would return with a description of the state of the checkbox
```
```python title="Code Snippet"
//nests if functions to check the value of 2 different Tags, and return a message based on which ones are greater than 0.
if({tag1} > 0, if({tag2} > 0, "Both Tags are positive.", "Tag 1 is positive."), if({tag2} > 0, "Tag 2 is positive.", "Neither Tag is positive."))
```