read script content onload

by **PMB9** » Mon Mar 23, 2009 7:38 pm

I do like to have a runon="load" attribute, so the script is beeing interpreted after the page is displayed. So I don't need to take the script tag to the end of the html document. Would be nice to use runon="unload" etc too.

Code: Select all: <script src="very_big_script.js" runon="load"/>

by **lyosha** » Mon Mar 23, 2009 9:35 pm

Code: Select all: if (document.addEventListener) { document.addEventListener("DOMContentLoaded", init, false); }

Instead of cluttering the script tag with events, the script itself should take care of events such as window.onDOMContentLoaded. What we need is for all browsers to implement the above (IE and Safari are the two left to implement this).

by **mskinner** » Mon Mar 23, 2009 10:21 pm

jQuery allows one to call the following:

Code: Select all: $(document).ready(function() { //Statement 1 //Statement 2 }) //Other script code or markup $(document).ready(function() { //Statement 3 //Statement 4 })

So at the top, middle or bottom of "very_big_script.js" you could have a call to:

Code: Select all: $(document).ready(function() { very_big_function(); })

Repeated calls do not overwrite previous ones, they are appended.
It's about 20KB, is all inside one file, and is cross browser: http://jquery.com/

Other JavaScript libraries probably have similar features to make life easier too.

by **lyosha** » Mon Mar 23, 2009 10:43 pm

Yeah, I'm a jQuery fan myself, but I think we should still press for browser support for standard interfaces.

by **zcorpan** » Tue Mar 24, 2009 9:16 am

HTML5 specifies <script defer> which will make the script run when the document has loaded, IIRC. For unload you could use <body onunload=...>

by **PMB9** » Tue Mar 24, 2009 5:02 pm

Great, zcorpan. "defer" is exactly what I mean.

By the way I hope DOMContentLoaded to become a standard, so DOM functions don't have to wait until all images are loaded.

by **zcorpan** » Wed Mar 25, 2009 10:30 am

HTML5 wrote:The user agent must then fire a simple event called DOMContentLoaded at the Document.

-- http://www.whatwg.org/specs/web-apps/cu ... op-parsing

by **JAB Creations** » Thu Mar 26, 2009 7:29 am

PMB9 wrote:I do like to have a runon="load" attribute...

This is the HTML5 forum, we're not discussing the W3C DOM, Mozilla's JavaScript, or Microsoft's JScript implementations.

by **PMB9** » Thu Mar 26, 2009 3:42 pm

JAB Creations, "defer" is a HTML 5 feature and a runon="load" attribute for the script element would be no feature of DOM or Ecmascript, it would be a HTML 5 feature.

read script content onload

read script content onload

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