How to know if a certain "class" is in use on my page?

Question

Friends,

There are many Divs on my page, I need to check if any have not been "finalized", for example:

<div class="triagem"> conteudo a ser analizado</div> 

Ready Divs get another "class":

<div class="aprovada"> conteudo ja checado</div> 

I tried a JS but it didn’t work because I don’t have the element, since there are hundreds and all with different ID:

if(.hasClass("triagem");){
   //tratamento:
}

another example that I did not succeed:

if(('[id^="triagem"]').classList.contains( 'triagem' ) ) {  
                 //tratamento:
            } 

So, my question eh: how to use java to check if you still have any dives using the "triage class" ?

Answer 1

Roberval, first your html is wrong, wouldn’t that be it:

<div class"triagem"> conteudo a ser analizado</div>  

but yes this:

<div class="triagem"> conteudo a ser analizado</div> 

You can use $('.triagem').size().

var quantidadeTriagens = $('.triagem').size();
if (quantidadeTriagens > 0){
    console.log('Ainda existem triagens');
}else{
    console.log('Não existem mais triagens, vá para casa descansar.');
}

$('.triagem') will return a list of all elements that have the triage class. The function size will return the size of the list. The rest is history, if the size is 0 there’s none, if it’s bigger than 0 exists yet.