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

Dan Fris
Dan Fris
918 Points
Posted by Dan Fris
Dan Fris
918 Points

Can someone give me a first step on the challenge last? I need some help getting started

Not sure how to begin. Any help?

script.js 
for (counter = 2, var counter <= 24, counter += 2) {
  var evenNumber = counter


  console.log(evenNumber); 
}

/*
console.log(2);
console.log(4);
console.log(6);
console.log(8);
console.log(10);
console.log(12);
console.log(14);
console.log(16);
console.log(18);
console.log(20);
console.log(22);
console.log(24);
*/
index.html 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

To set up the loop you create a loop counter which you can name anything. Here I call it i. Then, in the second clause you set a limit or condition -- the loop runs as long as this condition is true. And finally, in the 3rd clause, you increment the loop counter. Here I increment it by 2. That means that each time through the loop i will increase by 2: so it will be 2, then 4, then 6, etc.

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