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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Add Properties to an Object

Samuel Igborgbor
Samuel Igborgbor
4,335 Points

Add properties to an object

Add three properties to this object: population with a value of 2.211e6 (that's 2.211 million using exponential notation), a latitude property with a value of '48.8567 N', and a longitude property with a value of '2.3508 E'.

script.js
var paris = {
population = 2.211e6,
latitude = '48.8567 N',
longitude = '2.3508 E',  
};
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

Shay Paustovsky
Shay Paustovsky
969 Points

Hi Samuel,

Objects in JavaScript are a way to group related data into one easily managable unit.

Objects in JavaScript are stored inside a variable with an object literal.

var paris = {
// '{ } - is an object literal symbol/notation '
}

Properties of an object are stored as either :

  1. (Key) : (Value) pairs
  2. (Property) : (Value) pairs
var paris = {
population : 2.211e6,
latitude : '48.8567 N',
longitude : '2.3508 E'  
};

So I'm assuming you have learned some CSS. In CSS properties are written using (property : value) pairs, the same as in JavaScript.

Hopefully I've solved your problem

~ Shay ~

Greg Kaleka
Greg Kaleka
39,016 Points

Just stopping in to say, great answer :blush: