Code Challenge Question

Question

I'm not sure how to format this for loop since the numbers are not in order like normal. Could someone help me with this format?

My code:

for ( var i = 100; i < temperatures.length; i--[?]) console.log( i );

script.js

var temperatures = [100,90,99,80,70,65,30,10];

index.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

Answer 1 · 2015-03-05T05:38:57Z

March 5, 2015 5:38am

Hi Brittany Moyer,

That's a really good attempt! Let's try a simple example that you can apply to the challenge. Please let me know if this helps or not.

Cheers

// let's iterate over an array of numbers and log out each value to the console
var numbers = [4, 3, 2, 1];

/*
  remember that elements of an array start at index 0.
  the variable i is your 'index' into the array

  initialize i to 0, while i is less than the length of our numbers array,
  increment i by 1 at the end of each loop iteration
*/

for (var i = 0; i < numbers.length; i++) {
  console.log(numbers[i]);
}

// below is just pseudo code to help explain what is happening during the loop
Loop iteration 1:
  i == 0
  i < numbers.length // True
  console.log(numbers[i]); // 4
  i++

Loop iteration 2:
  i == 1
  i < numbers.length  // True
  console.log(numbers[i]); // 3
  i++

Loop iteration 3:
  i == 2
  i < numbers.length // True
  console.log(numbers[i]); // 2
  i++

Loop iteration 4:
  i == 3
  i < numbers.length // True
  console.log(numbers[i]); // 1
  i++

Loop iteration 5:
  i == 4
  i < numbers.length // False
  break out of loop

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Brittany Moyer

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Robert Richey

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Brittany Moyer

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