---
title: regexp.splitRegexp() function
description: >
  The `regexp.splitRegexp()` function splits a string into substrings separated by
  regular expression matches and returns an array of `i` substrings between matches.
aliases:
  - /influxdb/cloud/reference/flux/functions/regexp/splitregexp/
menu:
  influxdb_cloud_ref:
    name: regexp.splitRegexp
    parent: Regular expressions
weight: 301
---

The `regexp.splitRegexp()` function splits a string into substrings separated by
regular expression matches and returns an array of `i` substrings between matches.

_**Output data type:** Array of Strings_

```js
import "regexp"

regexp.splitRegexp(r: /a*/, v: "abaabaccadaaae", i: 5)

// Returns ["", "b", "b", "c", "cadaaae"]
```

## Parameters

### r
The regular expression used to search `v`.

_**Data type:** Regexp_

### v
The string value to search.

_**Data type:** String_

### i
The maximum number of substrings to return.
`-1` returns all matching substrings.

_**Data type:** Integer_