How do I rewrite this using if…else clauses?

Question

itemsArr.sort(function (a, b) {
    return a.innerHTML == b.innerHTML ? 0 : (a.innerHTML > b.innerHTML ? 1 : -1);
});

I'd like to know how this function could be written with if & else syntax

FYI, that's *a* ternary operator, but its actual name is ‘conditional operator’. — Marcel Korpel, May 02 '11 at 09:24

score 3 · Answer 1 · answered May 02 '11 at 09:22

3

itemsArr.sort(sortFunction);
function sortFunction (a, b) { 
  if (a.innerHTML == b.innerHTML) return 0;
  else if (a.innerHTML > b.innerHTML) return 1;
  else return -1; 
}

answered May 02 '11 at 09:22

mplungjan

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@Yoni - as someone else pointed out, the else's are optional when you use return. – mplungjan May 02 '11 at 09:52

Guffa · Answer 2 · 2011-05-02T09:31:13.407

1

That would look like this:

itemsArr.sort(function(a, b) {
  if (a.innerHTML == b.innerHTML) {
    return 0;
  } else if (a.innerHTML > b.innerHTML) {
    return 1;
  } else {
    return -1;
  }
});

You can also write it without else, as the return will exit the function:

itemsArr.sort(function(a, b) {
  if (a.innerHTML == b.innerHTML) return 0;
  if (a.innerHTML > b.innerHTML) return 1;
  return -1;
});

edited May 02 '11 at 09:31

answered May 02 '11 at 09:24

Guffa

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score 0 · Answer 3 · answered May 02 '11 at 09:23

0

function isGreater(a,b){
   if(a.innerHTML == b.innerHTML){
     return 0;
   } else if(a.innerHTML > b.innerHTML){
          return 1;
   }else{
       return -1;
   }
}

But why you want to do this?

answered May 02 '11 at 09:23

Harry Joy

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Im learning about this subject and I saw this thread: http://stackoverflow.com/questions/282670/easiest-way-to-sort-dom-nodes/5854834#5854834 – YoniGeek May 02 '11 at 09:46
@YoniGeek: then you should comment @nickf about this rather than giving answer and then after asking question here. – Harry Joy May 02 '11 at 09:59

score 0 · Answer 4 · answered May 02 '11 at 09:34

0

function(a, b) {
   returnType returnValue;

   if(a.innerHTML == b.innerHTML){
    returnValue = 0;
   }else if(a.innerHTML > b.innerHTML){
    returnValue = 1
   }else{
    returnValue = -1
   }

   return returnValue;
}

answered May 02 '11 at 09:34

fleur

115
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How do I rewrite this using if…else clauses?

4 Answers4