int = StrToIntDef(sString, nDefaultVal)

This macro function converts the string sString into a number, in the same manner as does the function IntToStr but, if the value of sString does not represent a valid number, then instead of generating an error, the function will return the value nDefaultVal.

// same behaviour as StrToInt()
StrToIntDef('1024', -1) // 1024
StrToIntDef('0012', -1) // 12
// the following would generate an error if used with StrToInt()
StrToIntDef('1.024', -1) // -1 
StrToIntDef('1,024', 12) // 12
StrToIntDef('Elvis', 666) // 666

See also: StrToInt, IntToStr.

Topic 178795, last updated on 18-Apr-2020