Why does this loop terminate partway through?

Question

I'm trying to write a program to find the smallest common multiple of the provided parameters that can be evenly divided by both, as well as by all sequential numbers in the range between these parameters.

The range will be an array of two numbers that will not necessarily be in numerical order.

For example, for 1 and 3 - find the smallest common multiple of both 1 and 3 that is evenly divisible by all numbers between 1 and 3.

Why does the loop stop at i = 510,000 (or something close to that) instead of 7,000,000, as I set it?

I also have a screenshot with the output:

function smallestCommons(arr) {
  
  var start;
  var finish;
  var something;
  
  if(arr[0] < arr[1]){start = arr[0]; finish = arr[1];}else{
      start = arr[1]; finish = arr[0];
    }
  
  for(var i = finish;i <= 7000000;i++){
    var boolea = true;
    for(var j = start;j <= finish;j++){
      if(i % j !== 0){boolea = false;break;} // 2 % 1
    }
    
    if(boolea)return i;
    
    something = i;
  }
  
  console.log("final i = " + i);
  
  return 0;
}

Try https://jsbin.com/blog/protection#loopprotection to check if jsbin is not forcing your code to exit from the loop — Gonzalo.-, Jun 20 '17 at 21:43
So I just put //noprotect right under the beginning of the for loop, it will iterate until the end, as it should. — Narcis Neacsu, Jun 20 '17 at 21:47
@NarcisNeacsu please consider to upvote and/or set the answer as accepted if it has helped you — Gonzalo.-, Jun 20 '17 at 22:06

score 2 · Accepted Answer · answered Jun 20 '17 at 21:50

2

Try to add this at the beginning of your loop

// noprotect

it must be that jsbin is forcing your code to exit from the loop. See source

answered Jun 20 '17 at 21:50

Gonzalo.-

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Why does this loop terminate partway through?

1 Answers1