---
title: strings package
description: The strings package provides functions to operate on UTF-8 encoded strings.
url: https://docs.influxdata.com/flux/v0/stdlib/strings/
estimated_tokens: 555
product: Flux
version: v0
publisher: InfluxData
canonical: https://docs.influxdata.com/flux/v0/stdlib/strings/
date: '2023-09-12T23:33:31-06:00'
lastmod: '2023-09-12T23:33:31-06:00'
---

* Flux 0.18.0+

InfluxDB support

The `strings` package provides functions to operate on UTF-8 encoded strings.
Import the `strings` package:

```js
import "strings"
```

## Functions

* [strings.compare()](/flux/v0/stdlib/strings/compare/)
* [strings.containsAny()](/flux/v0/stdlib/strings/containsany/)
* [strings.containsStr()](/flux/v0/stdlib/strings/containsstr/)
* [strings.countStr()](/flux/v0/stdlib/strings/countstr/)
* [strings.equalFold()](/flux/v0/stdlib/strings/equalfold/)
* [strings.hasPrefix()](/flux/v0/stdlib/strings/hasprefix/)
* [strings.hasSuffix()](/flux/v0/stdlib/strings/hassuffix/)
* [strings.index()](/flux/v0/stdlib/strings/index-fn/)
* [strings.indexAny()](/flux/v0/stdlib/strings/indexany/)
* [strings.isDigit()](/flux/v0/stdlib/strings/isdigit/)
* [strings.isLetter()](/flux/v0/stdlib/strings/isletter/)
* [strings.isLower()](/flux/v0/stdlib/strings/islower/)
* [strings.isUpper()](/flux/v0/stdlib/strings/isupper/)
* [strings.joinStr()](/flux/v0/stdlib/strings/joinstr/)
* [strings.lastIndex()](/flux/v0/stdlib/strings/lastindex/)
* [strings.lastIndexAny()](/flux/v0/stdlib/strings/lastindexany/)
* [strings.repeat()](/flux/v0/stdlib/strings/repeat/)
* [strings.replace()](/flux/v0/stdlib/strings/replace/)
* [strings.replaceAll()](/flux/v0/stdlib/strings/replaceall/)
* [strings.split()](/flux/v0/stdlib/strings/split/)
* [strings.splitAfter()](/flux/v0/stdlib/strings/splitafter/)
* [strings.splitAfterN()](/flux/v0/stdlib/strings/splitaftern/)
* [strings.splitN()](/flux/v0/stdlib/strings/splitn/)
* [strings.strlen()](/flux/v0/stdlib/strings/strlen/)
* [strings.substring()](/flux/v0/stdlib/strings/substring/)
* [strings.title()](/flux/v0/stdlib/strings/title/)
* [strings.toLower()](/flux/v0/stdlib/strings/tolower/)
* [strings.toTitle()](/flux/v0/stdlib/strings/totitle/)
* [strings.toUpper()](/flux/v0/stdlib/strings/toupper/)
* [strings.trim()](/flux/v0/stdlib/strings/trim/)
* [strings.trimLeft()](/flux/v0/stdlib/strings/trimleft/)
* [strings.trimPrefix()](/flux/v0/stdlib/strings/trimprefix/)
* [strings.trimRight()](/flux/v0/stdlib/strings/trimright/)
* [strings.trimSpace()](/flux/v0/stdlib/strings/trimspace/)
* [strings.trimSuffix()](/flux/v0/stdlib/strings/trimsuffix/)