Question

I have a sample code:

var find = ['iphone 3', 'iphone 4', 'iphone 5'];
var search = 'iphone 5';
for(i=0; i<find.length; i++) {
   if(search == find[i]) {
      alert('Yes');
   } else {
      alert('No');
   }
}

When I run code, result 2 alert(alert('Yes') and alert('No')), but result exactly is only a alert('Yes'), how to fix it ?

Answer 1

If I understand your question correctly, you don’t want no to be alerted when there is no match found:

var find = ['iphone 3', 'iphone 4', 'iphone 5'];
var search = 'iphone 5';
for(i=0; i<find.length; i++)
{
    if(search == find[i])
    {
       alert('Yes');
       break;//stop loop, found match
    }
}

Just don’t provide the else branch. Oh, and if you don’t care about older browsers:

if (find.indexOf(search) !== -1)
{
    alert('yes');
}