(Simple) Are HTML attributes allowed to have spaces between assignments

Question

I'm doing some attribute parsing as a string, so I need to know how spaces are used in HTML/XHTML element attributes:

  <div id='myid' width='150px' />

Is this also correct?

  <div id = 'myid' width = '150px' />

If anyone knows other ways of iterating through attributes and their values using JavaScript, I'd be interested to know.

You might want to specify what language you're trying to do the parsing in - if in C, C#, JavaScript. If JavaScript, are you perhaps trying to your own HTML document from within a browser, or offline? — Shalom Craimer
– Shalom Craimer, Commented May 6, 2009 at 6:27
Note that the width attribute is (a) deprecated and (b) takes either an integer or percentage - don't specify px in HTML (but always specify units in CSS). The validator won't pick this up, because the DTD doesn't express this rule (and I don't think DTDs are capable of doing that either) — Quentin
– Quentin, Commented May 6, 2009 at 8:35

Al W · Accepted Answer · 2009-05-06 06:24:03Z

8

Yes, both are correct. Rather than string parsing, you'll want to use the DOM. Check out jquery.

answered May 6, 2009 at 6:24

Al W

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Norbert Hartl · Accepted Answer · 2009-05-06 06:24:11Z

2

The spaces are allowed. If you are parsing attributes why don't you let the browser parse? If you are using innerHTML than you get elements that have an attribute list

answered May 6, 2009 at 6:24

Norbert Hartl

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5 Comments

Robin Rodricks Over a year ago

innerHTML? Could you please elaborate?

thomasrutter Over a year ago

You can parse HTML by inserting the HTML into some element's innerHtml property. The browser parses the HTML and inserts it into the tree as the element's child nodes.

Neall Over a year ago

Letting the browser parse the HTML sounds dangerous - wouldn't any <script> tags get executed?

Norbert Hartl Over a year ago

Nope, the script tags are IMHO embed in the DOM but not evaluated

Oriol Over a year ago

script elements do not run in innerHTML. However, it is unsafe: <img src="//" onerror="alert()">. To make it safe, use document.implementation.createHTMLDocument

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