Char.IsDigit

Syntax

IsDigit: Boolean;

Description

The IsDigit property returns whether the variable contains a decimal.

Comments

Available values:

True. The value is a number.
False. All the rest of the cases.

Example

Sub UserProc;
Var
    c, c1, c2, c3: Char;
    b, b1, b2, b3: Boolean;
Begin
    c := 'a';
    c1 := 'A';
    c2 := '4';
    c3 := '+';
    b := c.IsDigit;
    b1 := c1.IsDigit;
    b2 := c2.IsDigit;
    b3 := c3.IsDigit;
End Sub UserProc;

After executing the example the "b2" variable contains True, and the "b", "b1" and "b3" variables contain False.