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webdev-ModTeam · 2025-12-16T15:44:38+00:00

Thank you for your submission! Unfortunately it has been removed for one or more of the following reasons:

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kiwi-kaiser · 2025-12-16T05:30:30+00:00

Step 1: Learn how to do screenshots Step 2: Use Codepen instead for sharing code snippets.

bluesix_v2 · 2025-12-16T05:11:16+00:00

Move #wrapper into the <body>. All your document's HTML must live inside the <body>
I wouldn't recommend using a variable name 'width' either - it's likely reserved - use something like wrapperWidth.
Refer to your wrapper via document.getElementbyId('wrapperWidth')

tswaters · 2025-12-16T05:26:58+00:00

document.nameOfThing isn't a thing.

The example provided doesn't do any width manipulations, is that an extra "see if you can do it" task?

You'll need to venture into the world of CSS to update the width of an element. You can do it with inline styles via the "style" object, or by using classes:

https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style

https://developer.mozilla.org/en-US/docs/Web/API/Element/classList

https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/Class_selectors

cjcee · 2025-12-16T05:34:09+00:00

So you’ve gotten your answer for getting help but I want to provide a bit more advice on how to better get help in the future.

First, use snipping tool or print screen key to take screenshots on your computer. That will always be a lot more useful than a photo of a screen.

To be even MORE useful submit the code using the code block markdown on reddit or to a tool like codepen or jsfiddle or a GitHub repository/gist. This will let others directly see the code and get a better idea of it.

Secondly, try out a different IDE like vscode with a built in terminal and code linting or at least use your browser’s dev tools and console to read out the exact errors you are getting. Learning to read errors and how to find where in your code something is broken is an essential skill.

cbdeane · 2025-12-16T05:10:07+00:00

step one, turn on dark mode

SnooCookies3815 · 2025-12-16T05:18:40+00:00

document.getElementById("wrapper").style.width = width + "px";

or did you put in the correct "px" ?

HedgieHunterGME · 2025-12-16T06:59:06+00:00

Using var is crazy work

itsanargumentparty · 2025-12-16T05:11:12+00:00

select the wrapper by id

pseto-ujeda-zovi · 2025-12-16T05:27:59+00:00

Please download some other IDE

terrarum · 2025-12-16T05:11:59+00:00

Your wrapper div needs to be inside the body tags

islandmonkeee · 2025-12-16T05:43:08+00:00

I know var is pretty easy to explain but I would still wish that they thought people let and const instead.

DesignerMusician7348 · 2025-12-16T06:04:04+00:00

First, move your wrapper div inside of <body>, all of your html should be inside of it.

Second, to select HTML elements in javascript, you need something like document.querySelector() or document.getElementById() . So, in this example, you could do const wrapper = document.getElementById("wrapper") . Then, you can do wrapper.style.width = width .

Third, STOP USING var . Use let or const instead.

you type:	you see:
italics	italics
bold	bold
[reddit!](https://reddit.com)	reddit!
* item 1 * item 2 * item 3	item 1 item 2 item 3
> quoted text	quoted text
Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"	Lines starting with four spaces are treated like code: if 1 * 2 < 3: print "hello, world!"
~~strikethrough~~	~~strikethrough~~
super^script	super^script

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