Alaska Software Inc. - defer and async loading of javascript libraries
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AuthorTopic: defer and async loading of javascript libraries
Nestor G. Torresdefer and async loading of javascript libraries
on Fri, 08 May 2015 12:27:20 +0200
Hi Guy's,

Just been testing the "defer" and "async" loading directives of my 
javascript libraries. It seems to make a difference on the loading of 
large libraries.

why waist time loading javascript libraries that are only needed when an 
operator starts clicking on things; or are only needed when the web page 
gets fully loaded.

example of defer (if not defer operator could wait 1 to 2 seconds longer 
for the page to load):
<script type="text/javascript"
       src="http://maps.googleapis.com/maps/api/js?key=XIzpLDznxuPlx- 
BouS1mYEf5duSm9oYs4I-q28" defer>
</script>

Read about it here:
http://www.w3schools.com/tags/att_script_defer.asp
http://www.w3schools.com/tags/att_script_async.asp

Test my web page that has a few heavy javascript libs.  The starLite web 
pages are running off a laptop i5 windows 7. My Internet upload line 
speed is 0.7 megabits per sec...so that means that the initial StarLite 
is loaded at 0.7 megabit per second.

www.starlightdemo.com
www.magdasugarart.co.za

Kind regards,
Nestor