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

Björn Wauben
Björn Wauben
10,748 Points
Posted by Björn Wauben
Björn Wauben
10,748 Points

Adding properties to an Object

The challenge is: "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'."

My code keeps bringing up a syntaxError. I can't see what's wrong. Are these al numbers? I thought the second and third one are supposed to be strings? Seems really silly I can't pass a challenge where I just need to type three properties in an Object.

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>
Björn Wauben
Björn Wauben
10,748 Points
Björn Wauben
Björn Wauben
10,748 Points

I found the problem on my own. Somehow in the editor of the challenge my properties turned "blue" instead of "green" inside the object. I copied a similar Object from a later challenge and edited the numbers to pass this particular challenge. Now it passed. Strange.

10 Answers

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,253 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

Hi there Bjorn,

You can also try

var paris {
    population:  2.211e6,
    latitude: 48.8567 N,
    longitude: 2.3508 E          
};

The 2 main things I noticed were that Object properties are part of a structure of keys and associated values.

Also number values are not enclosed in quotes. :-)

Try this and it should pass too.

Tim Imasa
Tim Imasa
8,816 Points

Hello Jonathan,

I tried your code above, it says:

SyntaxError: Parse Error

Any ideas?

EDIT:

I passed the challenge by entering this code: 

var paris = {
    population = 2.211e6,
    latitude = '48.8567 N',
    longitude = '2.3508 E'          
};
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

It must be due to the N and the E in the code, which I didn't pick up on. Ooops!

I but if this is an object, I can't see why assigning them with = works. An object is a structure of keys and the values.

This code will pass

var paris = {
 population:  2.211e6,
    latitude: '48.8567 N',
    longitude:'2.3508 E' 

};

but this won't. 

var paris = {
 population:  2.211e6,
    latitude: '48.8567 N',
    longitude:'2.3508 E' 

};
Baheejah Fareed
Baheejah Fareed
3,450 Points

The challenge wouldn't accept N or E from me. It worked after I wrote the code that you have, but without the N and E.

Josephine Mukuya
Josephine Mukuya
5,911 Points
Josephine Mukuya
Josephine Mukuya
5,911 Points

this passed for me,,

var paris = { population: 2.211e6, latitude: 48.8567, longitude: 2.3508

};

Michael Oxborrow
Michael Oxborrow
7,186 Points
Michael Oxborrow
Michael Oxborrow
7,186 Points

I think there is a bug in this question. Same thing happened to me. Correct code not passing.

Miriam Rozenbaum
Miriam Rozenbaum
3,671 Points
Miriam Rozenbaum
Miriam Rozenbaum
3,671 Points

They do not want you to use the 2.211e6. (Maybe its there to just confuse) Use the other number provided for the population. (that's 2.211 million using exponential notation)

var paris = { population : 2.211, latitude : '48.8567 N', longitude : '2.3508 E'

};

sharmile thaneshkumar
sharmile thaneshkumar
3,003 Points
sharmile thaneshkumar
sharmile thaneshkumar
3,003 Points

This work for me.

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

Motuma Kaba
Motuma Kaba
11,960 Points
Motuma Kaba
Motuma Kaba
11,960 Points

This code worked for me

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

Douglas Christman
Douglas Christman
10,045 Points
Douglas Christman
Douglas Christman
10,045 Points

Same here. I kept getting an error that it couldn't find the properties population, longitude and latitude, even though they were clearly defined. I had to reset the code several times for it to work.

Sihyun Pratt
Sihyun Pratt
6,010 Points
Sihyun Pratt
Sihyun Pratt
6,010 Points

var paris = { population : “2.211e6”, latitude : “48.8567 N”, longitude : “2.3508 E” };

Sihyun Pratt
Sihyun Pratt
6,010 Points

It's pretty important to put quotation marks around the strings.

Unsubscribed User
seal-mask
.a{fill-rule:evenodd;}techdegree
Unsubscribed User
Full Stack JavaScript Techdegree Student 3,355 Points
Unsubscribed User
.a{fill-rule:evenodd;}techdegree
Unsubscribed User
Full Stack JavaScript Techdegree Student 3,355 Points

Why does the code must take quotation marks ' ' for the last two properties? I know they are coordinates but why?

var paris = { population: 2.211e6, latitude: '48.8567 N', longitude: '2.3508 E'

};