How to use callback in a loop?

Question

JavaScript

qw = getSpisocHesh11_20(chatId);
                    console.log(qw);
                    for(var ere=0;ere<qw.length;ere++) {
                        console.log(qw[ere] + " в for");
                        getSpisocRating2(msg, qw[ere], function (spisocHESh) {
                            ll++;
                            console.log("Начало");
                            console.log(qw[ere]);
                            console.log(sendSP);
                            if (spisocHESh == true) {
                                console.log('Добавилось1 ' + qw[ere]);
                                sendSP.push(qw[ere]);
                            }
                            if (ll == qw.length) {
                                console.log(sendSP);
                                setSpisocHesh11_20(chatId, sendSP);
                                sendMessage(msg, sendSP.join('\n'));
                            }

                        })
                    }

In the loop, it must call the function in turn, and it immediately throws them for execution

Answer 1

How to make foreach work linearly and not asynchronously?

Answer 2

Here the context changes, you will have to bind each callback to its own context, it's easier to
use instead of for

qw.forEach(function(item, ere){
  // тут qw[ere] или item
})