---
title: strings.trimSpace() function
description: >
  `strings.trimSpace()` removes leading and trailing spaces from a string.
menu:
  flux_v0_ref:
    name: strings.trimSpace
    parent: strings
    identifier: strings/trimSpace
weight: 101
---

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`strings.trimSpace()` removes leading and trailing spaces from a string.



##### Function type signature

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

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

## Parameters

### v
({{< req >}})
String to remove spaces from.




## Examples

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

```js
import "strings"

data
    |> map(fn: (r) => ({r with _value: strings.trimSpace(v: r._value)}))

```

{{< expand-wrapper >}}
{{% expand "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   |

{{% /expand %}}
{{< /expand-wrapper >}}