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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Accessing All of the Properties in an Object

Jonathan Meine
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.a{fill-rule:evenodd;}techdegree
Jonathan Meine
Front End Web Development Techdegree Student 10,944 Points

Help with 'for in' loop challenge task 2

Help - can't seem to get my code to work for challenge task #2 of this code challenge dealing with using 'for in' loops to iterate through an object and log out key names and values. Everything I've tried results in a message that my code for task #1 of the challenge is no longer working. Absolutely stumped here - any help much appreciated!

script.js
var shanghai = {
  population: 14.35e6,
  longitude: '31.2000 N',
  latitude: '121.5000 E',
  country: 'CHN'
};

for(var prop in shanghai) {
  console.log(prop);
}

for(var prop in shanghai) {
  console.log(prop,': ',shanghai[prop]);
}
index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Objects</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

3 Answers

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher

Hi there! It would pass the challenge, but you were meant to change the first for loop, not add an additional one. So now the output is incorrect. If you remove the first for loop your code will pass! :sparkles:

Seth Kroger
Seth Kroger
56,403 Points

The challenge says: 'Now that you are logging out the property names, include the property values too. In other words you want to log out 4 lines that include both the property name and value. For example: "population: 14.35e6"' So, it's not asking for two separate loops, but to change the existing one.