从Java调用函数返回

Question

I have two function like below:

var doSomething = function() {
    // first check if user wants to proceed and some other restrictions
    checkIfReallyShouldProceed();
    console.log('ok, proceed');
    // proceed and do something
}

var checkIfReallyShouldProceed = function() {
    var check = confirm('really proceed?');
    if(!check){
    //stop executing doSomething
    }
}

doSomething();

If the user does not confirm I want to return from doSomething. Of course I could return the result of the check variable to doSomething and have something like

if(!checkIfReallyShouldProceed()){
  return;
}

there, but I want the called function to stop the calling function from executing. Is this possible and if so, how?

Answer 1

An if condition is made for this type of conditional procedure:

var doSomething = function() {
    if (checkIfReallyShouldProceed()){
      return true; // This will stop the doSomething function from executing
    }

    console.log('ok, proceed');
}

var checkIfReallyShouldProceed = function() {
    return confirm('really proceed?'); // returns true/false
}

doSomething();

In the checkIfReallyShouldProceed function, return whether or not the user wants to proceed. In doSomething , it will stop executing if the called method returns true