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How to get distinct values for non-key column fields in Laravel?
...ted user has received from each conversation. Using groupBy I can get just one message, but I get the first, and I need the last message. Seems that orderBy doesn't work.
– JCarlosR
Jul 22 '16 at 3:32
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Can a local variable's memory be accessed outside its scope?
...situation anything can happen. The book can be there -- you got lucky. Someone else's book can be there and yours could be in the hotel's furnace. Someone could be there right when you come in, tearing your book to pieces. The hotel could have removed the table and book entirely and replaced it with...
How to use arguments from previous command?
... is a particular combination you use frequently, you can define a macro so one keystroke will perform it. This example will recall the second argument from previous commands by pressing Alt-Shift-Y. You could choose any available keystroke you prefer instead of this one. You can press it repeatedly ...
What are the differences between Abstract Factory and Factory design patterns?
...at is the most important part is left unanswered, and that is: when to use one, and when the other pattern?
– croraf
Jan 2 '14 at 23:58
13
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How can I check whether a radio button is selected with JavaScript?
I have two radio buttons within an HTML form. A dialog box appears when one of the fields is null. How can I check whether a radio button is selected?
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Does Python have an ordered set?
...st exactly the same as a normal set, except that initialisation should be done with a list.
OrderedSet([1, 2, 3])
This is a MutableSet, so the signature for .union doesn't match that of set, but since it includes __or__ something similar can easily be added:
@staticmethod
def union(*sets):
u...
How to iterate over rows in a DataFrame in Pandas
... the question) but does not mention this anywhere, so it isn't a very good one.
– cs95
May 28 '19 at 5:00
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float:left; vs display:inline; vs display:inline-block; vs display:table-cell;
... get gaps appearing between elements. There are work-arounds to this, but none of them are ideal. (the best is simply to not have any spaces between the elements)
display:table-cell;
Another one where you'll have problems with browser compatibility. Older IEs won't work with this at all. But even ...
Get the value in an input text box
...nstead of "val" you may look at my profile
– TheRedstoneTaco
Jan 18 '18 at 3:38
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Scala: What is a TypeTag and how do I use it?
... latter checks for structural equality, which often is not what should be done because it doesn't care about things such as prefixes (like in the example).
A TypeTag is completely compiler-generated, that means that the compiler creates and fills in a TypeTag when one calls a method expecting such ...