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

Robert Herron
Robert Herron
10,257 Points

I completed the assignment, but the system says that I'm not allowed to create a global property called "property".

I have to assign a name in a "for in" loop in order to call it in the console.log command. Is there a specific name I'm supposed to give it? Is my syntax flawed?

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

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

1 Answer

Michael Hulet
MOD
Michael Hulet
Treehouse Moderator 47,826 Points

Your loop does indeed use improper syntax. Even in a loop definition, you still have to declare your variable with a keyword, either var, let, or const

Robert Herron
Robert Herron
10,257 Points

"property" needs to be declared as a variable?

Robert Herron
Robert Herron
10,257 Points

That worked! Thanks so much!