Im not sure about the type of function declaration that is shown in the example below:
onload=function() {
for(c=0;c<anc.length;c++) {
if(anc[c].className=='pup') {
anc[c].onclick=function() {
popUp(this.href);
return false;
}
}
}
}'
Or is this how you declare a recursive function (a function that calls itself)?
JeevesBond posted this at 20:00—15th January 2008.
He has: 3,523 posts
Joined: Jun 2002
It looks like a function for recursing through all the links on a page, changing their onclick handlers to run the popUp function. Does that make sense? There's got to be more to it than that,
ancmust be defined somewhere: getElementByTagName or something like that.a Padded Cell our articles site!
benf posted this at 20:30—15th January 2008.
They have: 299 posts
Joined: Feb 2005
Thanks for the reply jeeves, i understand what it is supposed to do what i dont understand is why you declare the function like:
something = function(){
}
rather than:
function(){
}
JeevesBond posted this at 18:07—16th January 2008.
He has: 3,523 posts
Joined: Jun 2002
Ah, I see what you're getting at. It's attaching the function to an onload event, if it were just:
function dave() {... code ...
}
'
That by itself wouldn't do anything, just define a function. It would work just as well to do:
function dave() {... code ...
}
window.onload = dave;
'
But that's not as neat. What you first posted is a good example of Javascript's support for functions as first-class objects. Simply put: functions are treated just like variables in Javascript, it's pretty good stuff.
a Padded Cell our articles site!