On Wed, 4 Feb 2015 09:00:13 -0800 (PST), Paul DeBruicker pdebruic@gmail.com wrote:
Does using the | or & notation have any advantages over and: or or: or ifTrue:ifFalse ?
and: and or: are needed when you don't want to execute the code inside the block unless it is needed. They are also used to protect from executing code that shouldn't be run for example:
x notNil and: [x foo > y foo]
I always write expressions like the one you've written like:
a date = b date ifTrue:[a temps > b temps] ifFalse:[a date > b date]
I like this but it may be a little tricky for a beginner. But both or replay help one to learn.
I have also attached a file out (from VA Smalltalk) of a class that acts like a sort block but is much easier to use for complex sorts.
Lou
Louis LaBrunda wrote
Hi Raymond,
Try:
^notes sorted:[:a :b | (a date > b date) | ((a date = b date) & (a date temps > b date temps))].
Lou
On Wed, 04 Feb 2015 10:34:48 -0500, Raymond Asselin <
jgr.asselin@
> wrote:
I have this kind of sorting on anOrderedCollection
BlocNotes >>sortedNotes ^notes sorted:[:a :b | a date > b date]
This sort my notes on date but I want them sort by date AND inside a date
by hours and I don't khow how to do this.
Some insights?
aNote = 'med com date temps' instancesVariables what I call hours = temps
witch is a number like 2123 for 21h23
Some insights?
Louis LaBrunda Keystone Software Corp. SkypeMe callto://PhotonDemon mailto:
Lou@
http://www.Keystone-Software.com
Beginners mailing list
Beginners@.squeakfoundation
http://lists.squeakfoundation.org/mailman/listinfo/beginners
----------------------------------------------------------- Louis LaBrunda Keystone Software Corp. SkypeMe callto://PhotonDemon mailto:Lou@Keystone-Software.com http://www.Keystone-Software.com