Couldn't access the variable outside loop Javascript

Asked Jul 28 '16 at 10:36

Active Jul 28 '16 at 11:10

Viewed 26 times

My Sample Code

 function testfunction(){
     var index = 0;
     $(string).find("data").each(function () {
         if(index == 0){
             var testVar    = 'test'; // Declaring a variable
         }
         index++;
     });
     console.log(typeof testVar); // Shows undefined
}

output : undefined

Here, I am not able to access the variable testVar outside the loop.

Anyone please let me know why this is happening, As I am creating a variable inside the function and accessing the same variable inside the same function.

edited Jul 28 '16 at 11:10

asked Jul 28 '16 at 10:36

Kathir

1,212
15
25

`Function-level-scope`.... – Rayon Jul 28 '16 at 10:36
One more with `var` and function scope. – Tushar Jul 28 '16 at 10:37
2

Your variable is within another function – Dellirium Jul 28 '16 at 10:38
Besides error, what is the code doing? `var index = 0;` and checking in the `each` `index == 0` will always be true. – Tushar Jul 28 '16 at 10:38
2

"As I am creating a variable inside the function and accessing the same variable inside the same function" — You are not. There are two different functions there. – Quentin Jul 28 '16 at 10:38

Couldn't access the variable outside loop Javascript

0 Answers0