> For the complete documentation index, see [llms.txt](https://docs.inforiver.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inforiver.com/formula-syntax/text-formatting-functions/mid.md).
# MID
Return a specified number of characters from the middle of a text string, starting at a specific position.
The MID function returns a specific number of characters from a text string, starting at the position you specify, based on the number of characters you specify. When used with a number, the resultant value is stored as text.
### Syntax
```javascript
mid (text, position, length)
```
### Arguments
text/number - The text string containing the characters you want to extract. Required.
position - The position of the first character you want to extract in the text. Required.
length - Specifies the number of characters you want MID to return from the text. Required.
### Example
```javascript
mid([Full Name],0,7)
//When the field Full Name has the value Johny Rivers, this will return Johny R
```
Mid function
### **Excel equivalent**
[MID](https://support.microsoft.com/en-us/office/mid-midb-functions-d5f9e25c-d7d6-472e-b568-4ecb12433028)
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.
Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:
```
GET https://docs.inforiver.com/formula-syntax/text-formatting-functions/mid.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
