116 lines
3.3 KiB
Markdown
116 lines
3.3 KiB
Markdown
---
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title: strings.trimRight() function
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description: >
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`strings.trimRight()` removes trailing characters specified in the cutset from a string.
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menu:
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flux_v0_ref:
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name: strings.trimRight
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parent: strings
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identifier: strings/trimRight
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weight: 101
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---
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<!------------------------------------------------------------------------------
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IMPORTANT: This page was generated from comments in the Flux source code. Any
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edits made directly to this page will be overwritten the next time the
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documentation is generated.
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To make updates to this documentation, update the function comments above the
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function definition in the Flux source code:
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https://github.com/influxdata/flux/blob/master/stdlib/strings/strings.flux#L188-L188
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Contributing to Flux: https://github.com/influxdata/flux#contributing
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Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md
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------------------------------------------------------------------------------->
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`strings.trimRight()` removes trailing characters specified in the cutset from a string.
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##### Function type signature
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```js
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(cutset: string, v: string) => string
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```
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{{% caption %}}
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For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
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{{% /caption %}}
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## Parameters
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### v
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({{< req >}})
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String to to remove characters from.
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### cutset
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({{< req >}})
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Trailing characters to trim from the string.
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Only characters that match the cutset string exactly are trimmed.
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## Examples
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### Trim trailing periods from all values in a column
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```js
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import "strings"
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data
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|> map(fn: (r) => ({r with _value: strings.trimRight(v: r._value, cutset: ".")}))
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```
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{{< expand-wrapper >}}
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{{% expand "View example input and output" %}}
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#### Input data
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| _time | _value | *tag |
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| -------------------- | -------------- | ---- |
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| 2021-01-01T00:00:00Z | smpl_g9qczs... | t1 |
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| 2021-01-01T00:00:10Z | smpl_0mgv9n... | t1 |
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| 2021-01-01T00:00:20Z | smpl_phw664... | t1 |
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| 2021-01-01T00:00:30Z | smpl_guvzy4... | t1 |
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| 2021-01-01T00:00:40Z | smpl_5v3cce... | t1 |
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| 2021-01-01T00:00:50Z | smpl_s9fmgy... | t1 |
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| _time | _value | *tag |
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| -------------------- | -------------- | ---- |
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| 2021-01-01T00:00:00Z | smpl_b5eida... | t2 |
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| 2021-01-01T00:00:10Z | smpl_eu4oxp... | t2 |
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| 2021-01-01T00:00:20Z | smpl_5g7tz4... | t2 |
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| 2021-01-01T00:00:30Z | smpl_sox1ut... | t2 |
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| 2021-01-01T00:00:40Z | smpl_wfm757... | t2 |
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| 2021-01-01T00:00:50Z | smpl_dtn2bv... | t2 |
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#### Output data
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| _time | _value | *tag |
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| -------------------- | ----------- | ---- |
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| 2021-01-01T00:00:00Z | smpl_g9qczs | t1 |
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| 2021-01-01T00:00:10Z | smpl_0mgv9n | t1 |
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| 2021-01-01T00:00:20Z | smpl_phw664 | t1 |
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| 2021-01-01T00:00:30Z | smpl_guvzy4 | t1 |
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| 2021-01-01T00:00:40Z | smpl_5v3cce | t1 |
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| 2021-01-01T00:00:50Z | smpl_s9fmgy | t1 |
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| _time | _value | *tag |
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| -------------------- | ----------- | ---- |
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| 2021-01-01T00:00:00Z | smpl_b5eida | t2 |
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| 2021-01-01T00:00:10Z | smpl_eu4oxp | t2 |
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| 2021-01-01T00:00:20Z | smpl_5g7tz4 | t2 |
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| 2021-01-01T00:00:30Z | smpl_sox1ut | t2 |
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| 2021-01-01T00:00:40Z | smpl_wfm757 | t2 |
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| 2021-01-01T00:00:50Z | smpl_dtn2bv | t2 |
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{{% /expand %}}
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{{< /expand-wrapper >}}
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