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To know inside which module is a certain class, just look at the top left corner of the API documentation. It says Yahoo! UI Library > collection > ArrayList. I sometimes use the configurator to know which dependencies I still need to add ('resize' uses 'dd' but not 'widget', etc).

I do not understand.

In http://developer.yahoo.com/yui/3/api/index.html
When I search for "Array()"
I get back the results ...

http://developer.yahoo.com/yui/3/api/Ar ... l#method_()
and static Array () ( o , startIdx , arraylike )
of Class Array
of the path Yahoo! UI Library > yui > Array

On http://developer.yahoo.com/yui/3/configurator/
Array is not seen anywhere
When I click on Modules->'yui' the Submodules does not show anything with
the character string of 'array' in it.

In Javascript, do I just do?
YUI().use('yui', ...

Thank you.

"To know inside which module is a certain class, just look
at the top left corner of the API documentation. It says Yahoo!
UI Library > collection > ArrayList. I sometimes use the
configurator to know which dependencies I still need
to add ('resize' uses 'dd' but not 'widget', etc)."

There are some modules that are inside the YUI Core and you don't need to add the to the YUI().use() call.

These modules are listed here http://developer.yahoo.com/yui/3/yui/#core.

So to use Y.Array, just do...

Thank you for the answer. Your code works well.

I am not sure that I understand. Does the page URL help?

In http://developer.yahoo.com/yui/3/yui/#core
I see
YUI 3 COMPONENT MODULE
Array Operations array
YUI Object yui

In http://developer.yahoo.com/yui/3/api/index.html
When I search for "Array()"
I get back the results ...

http://developer.yahoo.com/yui/3/api/Ar ... l#method_()
and static Array () ( o , startIdx , arraylike )
of Class Array
of the path Yahoo! UI Library > yui > Array

Does the URL, "http://developer.yahoo.com/yui/3/api/Array.html"
that does not have 'yui' in it and does not have 'array' in it,
give me a clue that I do not supposed to type on the
keyboard both 'yui' and 'array', so that as you said and showed
the "use" method without 'yui' and 'array' is just fine, like
you showed?


YUI().use(function (Y) {
Y.Array.each(['a', 'b', 'c'], function (item, i) {
Y.log(item);
});
});


--------------------------------------

"
There are some modules that are inside the YUI Core
and you don't need to add the to the YUI().use() call.

These modules are listed
here http://developer.yahoo.com/yui/3/yui/#core.

So to use Y.Array, just do...

YUI().use(function (Y) {
Y.Array.each(['a', 'b', 'c'], function (item, i) {
Y.log(item);
});
});
"

"To know inside which module is a certain class, just look
at the top left corner of the API documentation. It says Yahoo!
UI Library > collection > ArrayList. I sometimes use the
configurator to know which dependencies I still need
to add ('resize' uses 'dd' but not 'widget', etc)."