Function isDigit

cli/util.go:179–183

(s string)

}

func isDigit(s string) bool {
	return strings.IndexFunc(s, func(c rune) bool {
		return c < '0' || c > '9'
	}) == -1
}

// extendedParseDuration is a more lenient version of parseDuration that allows
// for more flexible input formats and cumulative durations.