strings.isDigit() function

The strings.isDigit() function tests if a single-character string is a digit (0-9).

*Output data type: Boolean*

import "strings"
strings.isDigit(v: "A")
// returns false

Parameters

v

The single-character string to test.

*Data type: String*

Examples

Filter by columns with digits as values

import "strings"
data
  |> filter(fn: (r) => strings.isDigit(v: r.serverRef))

Related articles

• strings.isLetter() function