Hi can you please tell me why aleert is display when I am comparing the values
a is undefined and b is null .how they are equal ? http://jsfiddle.net/4fmzjhge/
var a
var b=null;
//value of a
alert(a);
//
alert(b)
if(a==b){alert('test');}
alert(typeof(a));
alert(typeof(b));