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ExtractNumber ​

ExtractNumber returns the numeric characters from a string.

Decimal points and negative signs are also returned.

If the first character is a zero(0), this will not be returned.

Declaration: Function ExtractNumber( const S : string) : Double;

Example

pascal
procedure OnMapEvent(var Value:Variant);
begin
  Value := ExtractNumber('ab12.3de4');                        //result is 12.34
  Value := ExtractNumber('ABC123');                           //result is 123
  Value := ExtractNumber('$-123.05');                         //result is -123.05
  Value := ExtractNumber('The total was $-12,663.05');        //result is -12663.05
  Value := ExtractNumber('02 indicates the 2nd day.');        //result is 22

  LogInfo(FloatToStr(ExtractNumber('$5,232.46')));           // returns 5232.46
  LogInfo(FloatToStr(ExtractNumber('-$5,232.46')));          // returns -5232.46
  LogInfo(FloatToStr(ExtractNumber('ab86.9b6')));            // returns 86.96
  LogInfo(FloatToStr(ExtractNumber('xyz123.67abc')));        // returns 123.67
  LogInfo(FloatToStr(ExtractNumber('ww987$#()')));           // returns 987

end;