Documentation

strings.countStr() function

Flux 0.18.0+

The strings.countStr() function counts the number of non-overlapping instances of a substring appears in a string.

Output data type: Integer

import "strings"

strings.countStr(v: "Hello mellow fellow", substr: "ello")

// returns 3

Parameters

v

The string value to search.

substr

The substring to count.

The function counts only non-overlapping instances of substr. For example:

strings.coutnStr(v: "ooooo", substr: "oo")

// Returns 2 -- (oo)(oo)o

Examples

Count instances of a substring within a string
import "strings"

data
  |> map(fn: (r) => ({
      r with
      _value: strings.countStr(v: r.message, substr: "uh")
    })
  )

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