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Text.is_digit

is_digitindex

Group: Logical

Documentation​

Returns if a character from the text at the specified index (0-based) is a digit (0-9).

Arguments​

  • index: The location in the text to get the character from. The index is also allowed to be negative, then the characters are counted from the end of the text, i.e. -1 will correspond to the last character.

Examples​

Check if an individual character is a digit:​

      "0".is_digit == True
      "A0".is_digit == False
      "A0".is_digit 1 == True
      "건반(Korean)".is_digit 1 == False

Remarks​

What is a Character?​

A character is defined as an Extended Grapheme Cluster, see Unicode Standard Annex 29. This is the smallest unit that still has semantic meaning in most text-processing applications.