72 lines
1.7 KiB
Markdown
72 lines
1.7 KiB
Markdown
---
|
|
title: regexp.findStringIndex() function
|
|
description: >
|
|
`regexp.findStringIndex()` returns a two-element array of integers that represent the
|
|
beginning and ending indexes of the first regular expression match in a string.
|
|
menu:
|
|
flux_v0_ref:
|
|
name: regexp.findStringIndex
|
|
parent: regexp
|
|
identifier: regexp/findStringIndex
|
|
weight: 101
|
|
---
|
|
|
|
<!------------------------------------------------------------------------------
|
|
|
|
IMPORTANT: This page was generated from comments in the Flux source code. Any
|
|
edits made directly to this page will be overwritten the next time the
|
|
documentation is generated.
|
|
|
|
To make updates to this documentation, update the function comments above the
|
|
function definition in the Flux source code:
|
|
|
|
https://github.com/influxdata/flux/blob/master/stdlib/regexp/regexp.flux#L93-L93
|
|
|
|
Contributing to Flux: https://github.com/influxdata/flux#contributing
|
|
Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md
|
|
|
|
------------------------------------------------------------------------------->
|
|
|
|
`regexp.findStringIndex()` returns a two-element array of integers that represent the
|
|
beginning and ending indexes of the first regular expression match in a string.
|
|
|
|
|
|
|
|
##### Function type signature
|
|
|
|
```js
|
|
(r: regexp, v: string) => [int]
|
|
```
|
|
|
|
{{% caption %}}
|
|
For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
|
|
{{% /caption %}}
|
|
|
|
## Parameters
|
|
|
|
### r
|
|
({{< req >}})
|
|
Regular expression used to search `v`.
|
|
|
|
|
|
|
|
### v
|
|
({{< req >}})
|
|
String value to search.
|
|
|
|
|
|
|
|
|
|
## Examples
|
|
|
|
### Index the bounds of first regular expression match in each row
|
|
|
|
```js
|
|
import "regexp"
|
|
|
|
regexp.findStringIndex(r: /ab?/, v: "tablet")// Returns [1, 3]
|
|
|
|
|
|
```
|
|
|