flash - Function returning -

why program output text "future" function year()?

in case, b+c equaling 56, var year should fall under (b+c) > 0 && (b+c) < 1000) , return "roman", instead returns "future"...

i got work if add this:

var period:string = (year(b,c)); 

and in body function, make conditionals check period. example

if (period == "future") 

but don't understand why need this. returning string, why have set variable? there no compiler errors not syntactical?

var a:string = "tim"; var b:int = 50; //change int want var c:int = 6; //change int want var d:string = "kyle"; var sum:int = b+c;  function friend(d:string, a:string):string {     return d+" , "+a; }  function year(b:int, c:int):string {     if( (b+c) > 2000 )         return "future";     else if( (b+c)> 1000 && b+c< 2000)         return "colonial";     else if( (b+c) > 0 && (b+c) < 1000)         return "roman";     else if( (b+c) < 0)         return "medieval";     else         return "fail";  }   function intro(sum, friend):string {     return "once upon time, in year "+ b+c +", "+friend; }  function body(year):string {     if ("future")         return " saw flying saucer , descided wanted alien.";     else if ("colonial")         return " got off the mayflower , descided wanted eat turkey.";     else if ("roman")         return " taking break after fierce battle romans.";     else if ("medieval")         return " saved princess in shining armor after slaying dragon.";     else if ("fail")         return " got f on exam.";     else         return " got f on test.";             } trace (b+c); trace(intro(sum, friend(d, a)) + body(year)); 

you passing functions parameters other functions. need pass result of function call parameters other functions.

also, if use int+int in string concatination, need put calculation between brackets. use (int+int) instead.

in intro function, passed in sum parameter, did not use it. instead recalculated b+c.

try this:

var a:string = "tim"; var b:int = 50; //change int want var c:int = 6; //change int want var d:string = "kyle"; var sum:int = b+c;  function friend(d:string, a:string):string {     return d+" , "+a; }  function year(b:int, c:int):string {     if( (b+c) > 2000 )         return "future";     else if( (b+c)> 1000 && b+c< 2000)         return "colonial";     else if( (b+c) > 0 && (b+c) < 1000)         return "roman";     else if( (b+c) < 0)         return "medieval";     else         return "fail";  }   function intro(sum:int, friend:string):string {     return "once upon time, in year "+ sum +", "+friend; }  function body(year:string):string {     if ("future")         return " saw flying saucer , descided wanted alien.";     else if ("colonial")         return " got off the mayflower , descided wanted eat turkey.";     else if ("roman")         return " taking break after fierce battle romans.";     else if ("medieval")         return " saved princess in shining armor after slaying dragon.";     else if ("fail")         return " got f on exam.";     else         return " got f on test.";             } trace (b+c); trace(intro(sum, friend(d, a)) + body(year(b, c)));