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

hi' I tried every thing and It dosnt help. this is my answer: for (prop in shanghai){ console.log(prop) }

for (prop in shanghai){ console.log(prop) } why this dosnt print the prop to the console? I tried also this: for (prop in shanghai){ console.log(shanghai[prop]) } and it dosnt work. thank you

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

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

2 Answers

hi, maby you know why this dosnt make a for in loop for me?: for (prop in shanghai){ console.log(prop) } i tried also : for (prop in shanghai){ console.log(shanghai[prop]) } also dosnt work. thank you Ofek

Mark Sebeck
MOD
Mark Sebeck
Treehouse Moderator 28,992 Points

Hi Ofek. You are close. You forgot to declare prop. You need to put var in front of prop in the for loop.