docs-v2/content/flux/v0.x/stdlib/strings/containsstr.md

title	description	aliases	menu	weight	related	introduced
strings.containsStr() function	The strings.containsStr() function reports whether a string contains a specified substring.	/influxdb/v2.0/reference/flux/functions/strings/containsstr/ /influxdb/v2.0/reference/flux/stdlib/strings/containsstr/ /influxdb/cloud/reference/flux/stdlib/strings/containsstr/	flux_0_x_ref name parent strings.containsStr strings	301	/flux/v0.x/stdlib/strings/containsany	0.18.0

The strings.containsStr() function reports whether a string contains a specified substring.

Output data type: Boolean

import "strings"

strings.containsStr(v: "This and that", substr: "and")

// returns true

Parameters

v

The string value to search.

substr

The substring value to search for.

Examples

Report if a string contains a specific substring

import "strings"

data
    |> map(fn: (r) => ({r with _value: strings.containsStr(v: r.author, substr: "John")}))