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up vote -2 down vote favorite

I Loop through a complex JSON object but I want to stop the loop after n iterations

n = 0;
maxIterations = 100;
ObjectValues = function(v, k){
  if(n == maxIterations){
    if (typeof v == "object") {
      for (var kp in v) {
        if (Object.hasOwnProperty.call(v, kp)) {
          ObjectValues(v[kp], k != undefined ? k + "." + kp : kp);
        }
      }
    } else {
      console.log(k + ":" + v);
      n++;
    }
  }else{
    console.log('I should end the function');
    return false;
  }
};

But I can't exit the function with return false. The function gets called, even after I tried to exit it with return false.

share|improve this question
    
try if(n >= maxIterations) and let us know. –  Tolga Evcimen Jun 26 at 12:20
1  
n will never be bigger than maxIterations. So this doesn't work. An when i do it like this: n <= maxIterations, then it doesn't work too. But this is not the problem. The problem is, how to exit the function. –  Simon S. Jun 26 at 12:24
    
so, are you aware that you don't increase the n on your if case? –  Tolga Evcimen Jun 26 at 12:25
    
I do but just in the else. The function looks through all the objects in a object and if there are no more objects in a object it prints k and v. This information I want to get n times. That's why I increase the n just in the else case. –  Simon S. Jun 26 at 12:30
    
So tell us what exactly happens? You say "The function gets called, even after I tried to exit it with return false.", if you can get down to the return false; then it means you are already in the function, it is already called. I couldn't understand the question. –  Tolga Evcimen Jun 26 at 12:36

1 Answer 1

up vote 0 down vote

As I understand it, you want to recursively print maxiteration keys and their values:

n = 0;
maxIterations = 100;
ObjectValues = function(v, k){
  if(n < maxIterations){
    if (typeof v == "object") {
      for (var kp in v) {
        if (Object.hasOwnProperty.call(v, kp)) {
          if(! ObjectValues(v[kp], k != undefined ? k + "." + kp : kp) )
            return false;
        }
      }
    } else {
      console.log(k + ":" + v);
      n++;
    }
    return true;
  } else {
    console.log('I should end the function');
    return false;
  }
};
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