docs-v2/content/v2.0/reference/flux/functions/strings/containsstr.md

title	description	menu	weight	related
strings.containsStr() function	The strings.containsStr() function reports whether a string contains a specified substring.	v2_0_ref name parent strings.containsStr Strings	301	/v2.0/reference/flux/functions/strings/containsany

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.

Data type: String

substr

The substring value to search for.

Data type: String

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")
    })
  )