> For the complete documentation index, see [llms.txt](https://docs.incari.com/incari-studio/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.incari.com/incari-studio/toolbox/string/indexof.md).

# IndexOf

## Overview

![The IndexOf Node.](/files/eXm8t6nVzGeNsYAgStGv)

The **IndexOf** **Node** returns the index of the first occurrence of a *substring* in a **String** and a **Bool** indicating whether it was found or not.

The range in which the *substring* will be searched can be customized via the `StartIndex` and `EndIndex` **Attributes**.

[**Scope**](/incari-studio/toolbox/overview.md#scopes): **Project**, **Scene**, **Function**, **Prefab**.

## Attributes

![The IndexOf Node Attributes.](/files/JacVq8k6wurAs6arlg8C)

| Attribute    | Type       | Description                                                                                       |
| ------------ | ---------- | ------------------------------------------------------------------------------------------------- |
| `String`     | **String** | The **String** in which the search will be performed, if none is given in the **Input Socket**.   |
| `Pattern`    | **String** | The *substring* that will be searched for, if none is given in the **Input Socket**.              |
| `StartIndex` | **Int**    | The *index* of `String` in which the search will start, if none is given in the **Input Socket**. |
| `EndIndex`   | **Int**    | The *index* of `String` in which the search will end, if none is given in the **Input Socket**.   |

## Inputs

| Input             | Type       | Description                                                           |
| ----------------- | ---------- | --------------------------------------------------------------------- |
| *Pulse Input* (►) | **Pulse**  | A standard **Input Pulse**, to trigger the execution of the **Node**. |
| `String`          | **String** | The **String** in which the search will be performed.                 |
| `Pattern`         | **String** | The *substring* that will be searched for.                            |
| `StartIndex`      | **Int**    | The *index* of `String` in which the search will start.               |
| `EndIndex`        | **Int**    | The *index* of `String` in which the search will end.                 |

## Outputs

| Output             | Type      | Description                                                                                                                            |
| ------------------ | --------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| *Pulse Output* (►) | **Pulse** | A standard **Output Pulse**, to move onto the next **Node** along the **Logic Branch**, once this **Node** has finished its execution. |
| `IndexOf`          | **Int**   | The *index* of the first occurrence of `Pattern` in `String`.                                                                          |
| `Found`            | **Bool**  | Whether `Pattern` was found in `String` or not.                                                                                        |

## See Also

* [**LastIndexOf**](/incari-studio/toolbox/string/lastindexof.md)

## External Links

* [*Substring*](https://en.wikipedia.org/wiki/Substring) on Wikipedia.


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