Try-catch

var answer = (function(){
    console.log('first block ---')
    try {
        console.log('try block');
        return 1;     
    }
    catch (e){
        console.log('catch block');
        return 2;  
    }
    finally {
        console.log('finally block');
        return 5;  
    }
    console.log('after block');
    return 4;
})();

console.log(answer);