Can you explain this code¿?

Newbie Member
23Mar2011,05:55   #1
raulcorrales's Avatar
Hi to all the users.

I have find this code in this forum:


Code:
function MyFunction(a,b)
{   
    return ((a[1] < b[1]) ? -1 : ((a[1] > b[1]) ? 1 : 0));
}

I've used for my program and it works, does what I want, but do not understand their ways.

Can you explain the function¿?

Thanks
Light Poster
28Mar2011,16:11   #2
Cristi1213's Avatar
The syntax is something like this: condition ? trueResult : falseResult;
First the condition is verified. If it is true than trueResult is returned, else falseResult is returned. In your example, the second one is evaluated first. If a1 is bigger than b1 1 is returned, else 0, than the second one is evaluated, -1 if a1 is smaller than b1, the previous result otherwise. That is -1 in case if a1<b1, 1 if a1>b1, 0 of they are equal.
Newbie Member
12Apr2011,16:58   #3
pyasakumar's Avatar
Hello dear
I think also Its a condition. True and False Result