How to acess an specific array content?-CodePudding

I am working on this code, that take a specifics items of an array to compare:

    //print the content inside array 'mensagens'
    console.log(mensagens);

    //print just the firts 'Classe'
    console.log(mensagens[0].Classe);

    //put in classeN the result (Classe) of a condition
    let classeN = mensagens.find(a => a.TempoInicial <= b.seconds && (a.TempoFinal ?? 
    b.seconds) >= b.seconds).Classe;

The array mensagens is defined out of this code, I just use her here.

The problem is when after the find() method, when i try to take the Classe from array mensagens, the console say that cannot read Classe, because is undefined. But when I print all the content of the array mensagens, everything seens to be just fine:

Anyone know's how can I acess right after the find() method all that five Classes inside the array?

Please, any help can be good!

CodePudding user response：

Turn out that I have finded wheres the problem is...

When I compare the a.TempoFinal with b.seconds, the a.TempoFinal must be ```null`` not zero, so that is what was causing me troubes... thaks for the help