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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Create a while Loop

Bakari Lewis
Bakari Lewis
6,556 Points
Posted by Bakari Lewis
Bakari Lewis
6,556 Points

Need help...Why is it saying "Your code took too long to run"

Not sure how to make this code run faster. Or are there any errors in this code?

Thanks for the help :)

script.js 
var count = 0;
while (count<27){
  var count =+ 1;
  document.write(count);
}

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

I think you've redefined the variable count by calling it var a second time. I also think that =+ isn't incrementing your variable so the loop is carrying on forever as it'll never reach the escape value.

Have a look at this and see if it makes sense:

var count = 0;

while (count < 26) {
  document.write(count);
  count++;
}

I hope that helps.

Steve.

Steve Hunter
Steve Hunter
57,712 Points

I think in your code, the second definition of var count is out of scope to the while control loop. So, your first count variable, defined outside of the loop, stays at zero whilst the one inside does whatever it does but isn't controlling the loop. You've redefined a new variable inside the loop that's getting =+ applied to it - and I'm not sure =+ right - but the scope issue looks to be the reason the code will run forever - there's nothing incrementing the first count.

Steve.

Bakari Lewis
Bakari Lewis
6,556 Points
Bakari Lewis
Bakari Lewis
6,556 Points

Thanks! this worked!

Nikhil Deorkar
PLUS
Nikhil Deorkar
Courses Plus Student 1,695 Points
Nikhil Deorkar
Nikhil Deorkar
Courses Plus Student 1,695 Points

Count need to be incremented using += or ++ not by using =+. When it says that it is taking to long to run, it usually means that your loop is incomplete, meaning that it is not being changed in any way, or that it has some sort of syntax error causing it to be an infinite loop going on forever and it could eventually crash your browser. Hope this helps!

Quick code example:

var count = 0;
while (count<27){
  var count += 1; //you can also use 'count++;' to increment it by one
  document.write(count);
}
Bakari Lewis
Bakari Lewis
6,556 Points
Bakari Lewis
Bakari Lewis
6,556 Points

That makes sense now! Thanks a lot. :)

Nikhil Deorkar
Nikhil Deorkar
Courses Plus Student 1,695 Points

Glad to help!