---
title: strings.trim() function
description: strings.trim() removes leading and trailing characters specified in the cutset from a string.
url: https://docs.influxdata.com/flux/v0/stdlib/strings/trim/
estimated_tokens: 1417
product: Flux
version: v0
---

# strings.trim() function

-   Flux 0.18.0+
-   View InfluxDB support

`strings.trim()` removes leading and trailing characters specified in the cutset from a string.

##### Function type signature

```js
(cutset: string, v: string) => string
```

For more information, see [Function type signatures](/flux/v0/function-type-signatures/).

## Parameters

### v

(Required) String to remove characters from.

### cutset

(Required) Leading and trailing characters to remove from the string.

Only characters that match the cutset string exactly are trimmed.

## Examples

### Trim leading and trailing periods from all values in a column

```js
import "strings"

data
    |> map(fn: (r) => ({r with _value: strings.trim(v: r._value, cutset: "smpl_")}))
```

[](#view-example-input-and-output)

View example input and output

#### Input data

| _time | _value | *tag |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | .smpl_g9qczs. | t1 |
| 2021-01-01T00:00:10Z | .smpl_0mgv9n. | t1 |
| 2021-01-01T00:00:20Z | .smpl_phw664. | t1 |
| 2021-01-01T00:00:30Z | .smpl_guvzy4. | t1 |
| 2021-01-01T00:00:40Z | .smpl_5v3cce. | t1 |
| 2021-01-01T00:00:50Z | .smpl_s9fmgy. | t1 |

| _time | _value | *tag |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | .smpl_b5eida. | t2 |
| 2021-01-01T00:00:10Z | .smpl_eu4oxp. | t2 |
| 2021-01-01T00:00:20Z | .smpl_5g7tz4. | t2 |
| 2021-01-01T00:00:30Z | .smpl_sox1ut. | t2 |
| 2021-01-01T00:00:40Z | .smpl_wfm757. | t2 |
| 2021-01-01T00:00:50Z | .smpl_dtn2bv. | t2 |

#### Output data

| _time | _value | *tag |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | .smpl_g9qczs. | t1 |
| 2021-01-01T00:00:10Z | .smpl_0mgv9n. | t1 |
| 2021-01-01T00:00:20Z | .smpl_phw664. | t1 |
| 2021-01-01T00:00:30Z | .smpl_guvzy4. | t1 |
| 2021-01-01T00:00:40Z | .smpl_5v3cce. | t1 |
| 2021-01-01T00:00:50Z | .smpl_s9fmgy. | t1 |

| _time | _value | *tag |
| --- | --- | --- |
| 2021-01-01T00:00:00Z | .smpl_b5eida. | t2 |
| 2021-01-01T00:00:10Z | .smpl_eu4oxp. | t2 |
| 2021-01-01T00:00:20Z | .smpl_5g7tz4. | t2 |
| 2021-01-01T00:00:30Z | .smpl_sox1ut. | t2 |
| 2021-01-01T00:00:40Z | .smpl_wfm757. | t2 |
| 2021-01-01T00:00:50Z | .smpl_dtn2bv. | t2 |

#### Related

-   [strings.trimLeft() function](/flux/v0/stdlib/strings/trimleft/)
-   [strings.trimRight() function](/flux/v0/stdlib/strings/trimright/)
-   [strings.trimPrefix() function](/flux/v0/stdlib/strings/trimprefix/)
-   [strings.trimSuffix() function](/flux/v0/stdlib/strings/trimsuffix/)
-   [strings.trimSpace() function](/flux/v0/stdlib/strings/trimspace/)