Making sure observables in for loop are all finished before executing other code

Question

I have a piece of code that looks like this:

getPersons().subscribe(
    persons => {
        for (const person of persons) {
            getAddress(perso         


        

Answer 1

Try this approach

methodOne() {
getPersons().subscribe(
    persons => {
        for (const person of persons) {
            getAddress(person.id).subscribe(
                address => {
                    person.address = address;
                }
            );
        }
     }
);
}

async methodTwo() {
await methodOne();
doSomethingWithAddresses();
}