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Kim Dallas
11,461 Pointsthis one is totally confusing
shangai is the property but there is no value for it?
var shanghai = {
population: 14.35e6,
longitude: '31.2000 N',
latitude: '121.5000 E',
country: 'CHN'
};for (var something in shanghai){
console.log(something + ': ' + shanghai[something]);
}for (var population in shanghai){
console.log(something + ': ' + shanghai[something]);
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript Objects</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>
1 Answer
Christian Bartram
1,193 Pointsshanghaiis the variable which hold properties of the shanghai object (lat, long, country, population). So you can access the properties of the shanghai object individually using:
shanghai.country; // CHN
// or
shanghai['country'] // CHN
All you are doing is using a for/in loop to iterate over all the properties of the object. So:
var something
// is referring to the strings: population, latitude, longitude, country
// and
shanghai[something]
// is equal to
shanghai.population
// then
shanghai.latitude
//then
shanghai.longitude
...etc