...

View Full Version : Having trouble declaring the function twice



omega_lonestar
10-14-2008, 03:56 PM
I have a quick question. I'm writing a piece of code that will generate if it is an odd number or an even number. I was able to get the output. Now I'm trying to figure out how can I declare the function twice. This is my code:

function f(n)
{
document.write(n);


}

var m=Math.round(1+ Math.random()*100);

if (m%2!==0)
f(m + " is an odd number<br>");
else
f(m + " is an even number<br>");

Philip M
10-14-2008, 05:37 PM
No, you cannot have multiple scripts with the same names of functions and/or variables.

If you require a second instance of the same script you must rename all functions and variables to (say) m2 and so on.

Your code has several errors:



var m = Math.round(1+ Math.random()*100);
if (m&#37;2 != 0) {
var f = (m + " is an\nodd number");
}
else {
f = (m + " is an\neven number");
}

alert (f)

Not equal to is != not !==
Newline is \n not <br> which is a literal, but newline is not required here.


If at first you don't succeed, redefine success.

rnd me
10-14-2008, 07:06 PM
Not equal to is != not !==
Newline is \n not <br> which is a literal, but newline is not required here.



actually not equal is !==, not equivalent is !=.

although all it really needs is the condition changed to if(m&#37;2). no reason to compare to zero here...



OP:
not sure what you mean by "declare the function twice".
you could wrap your loose code in a function, at which point it can be called repeatedly:



function f(n){document.write(n);}

function reportEveness(m){
if (m%2){
f(m + " is an odd number<br>");
}else{
f(m + " is an even number<br>");
}
}



// do two different numbers:

var n=Math.round(1+ Math.random()*100);
reportEveness(n);

n=Math.round(1+ Math.random()*100);
reportEveness(n);

omega_lonestar
10-16-2008, 01:32 PM
Thank you kindly :) I was able to figure out the coding. I meant to say that I would like to run the function twice so that way the results from the random function appears differently rather than the same.



EZ Archive Ads Plugin for vBulletin Copyright 2006 Computer Help Forum