Here's my code, i'm using vuejs:

```
pins: [1, 2, 3, 4, 5, 6, 7, 8, 9, 0], //my data

isThisPin(pin){
    return _.includes(this.pins, pin);
}

console.log(this.isThisPin('X')); //it returns true

```

Basically i'm trying to guess if the selected pin is not included in the pins, I expect to return it as false, but it just keep returning as true.

Am I using a wrong function?