RosettaCodeData/Task/Determine-if-a-string-is-numeric/Nim/determine-if-a-string-is-numeric.nim
2016-12-05 23:44:36 +01:00

10 lines
176 B
Nim

import strutils
let s = "123"
var f: float
try:
f = parseFloat s
except EInvalidValue:
echo "not numeric"
if s.contains AllChars - Digits:
echo "not a positive integer"