the error is function should have return statement kotlinlang #announcements

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Title

a

Ashutosh Panda

12/05/2019, 12:40 PM

the error is function should have return statement

d

diesieben07

12/05/2019, 12:40 PM

The compiler cannot prove that the for loop will run at least once

So you have to handle the case where it is never run and provide a return value in that case, too

a

Ashutosh Panda

12/05/2019, 12:41 PM

So how to to do that

Ok let me try

What changes should I made

d

diesieben07

12/05/2019, 12:41 PM

Using a for loop here doesnt actually make any sense, since the first iteration will always return

So you could just do that first iteration's code, without any looping

a

Ashutosh Panda

12/05/2019, 12:42 PM

can't understand

s

Sergei Dubrov [JB]

12/05/2019, 12:42 PM

e.q. you can simply add return of some default value after for loop

d

diesieben07

12/05/2019, 12:42 PM

inside the for loop you just always return something. So it never even gets to the x = 1 etc cases

➕ 1

So no point even doing a loop

a

Ashutosh Panda

12/05/2019, 12:44 PM

If return any random value it affect my prog

leave I got it

Thanks

d

diesieben07

12/05/2019, 12:44 PM

Your code right now is equivalent to this:

return if (dataBase[0]?.accNo == accNo) {
            0
        } else {
            -1
        }

without any loop

a

Ashutosh Panda

12/05/2019, 12:44 PM

yes

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