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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Refactor Using a Loop

Posted by Abdullahi Abdinasir Ali
Abdullahi Abdinasir Ali
9,520 Points

How should define the log the even num from 2 to 24

Am not understanding the quiz

script.js 
for (var i = 2; i >= 24; i=+ 2){
  console.log(12);
}
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

2 Answers

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
for (var i = 2; i > 24; i+= 2){
//again the same mistake, when entering the loop, i is equal to 2
//then when you compute the condition for the the first time 2 > 24 which results false
//so it will never go to the statement, think of it 2 > 24 is it true or false
//loops, one of the main facts is, to enter in and run in as many times, condition will have to result in true
//when it becomes false, it will exit the loop. should you use i > 24 or i (fill in the blank) 24
  console.log(I); //here, bear it in mind, javascript is case sensitive
}

//when you correct these 2 errors, you will encounter another logic error
//and it will only print from 2 to 22 and will miss the 24
//so correct it
Abdullahi Abdinasir Ali
Abdullahi Abdinasir Ali
9,520 Points

Thanks for been tolerant with my mistakes. Wonderful explanations I appreciate it

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
//good approach, I would say, but there are 2 syntax issue, so along with a logic issue
for (var i = 2; i >= 24; i=+ 2){ // loop will not enter in ever, if you think back, i is 2 at start and the condition
//is like 2 >= 24 which is false, will never take into the loop
//then, this is wrong i=+2, should be like i+=2
  console.log(12); // logic issue, this will only print 12 however, the times the loop goes
}
Abdullahi Abdinasir Ali
Abdullahi Abdinasir Ali
9,520 Points

I corrected it but still says undefined num

for (var i = 2; i > 24; i+= 2){
  console.log(I);
}

I think there still something wrong with my code.