Count Digits in a String

countDigitsIn.go

func countDigitsIn(s string) int {
	if len(s) == 0 {
		return 0
	}
	digitsCount := 0
	for _, v:=range s {
		if v=='0' || v=='1' || v=='2' || v=='3' || v=='4' || v=='5' || v=='6' || v=='7' || v=='8' || v=='9' {
			digitsCount++
		}
	}
	return digitsCount
}