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What's the absurd function in Data.Void useful for?
... ((a -> m Void) -> m a) -> m a, because a call to the contination doesn't actually return, it transfers control to another point. If we wanted to work with continuations, we could define
type Continuation r a = a -> Cont r Void
(We could use type Continuation' r a = forall b . a ->...
What is the difference between :first-child and :first-of-type?
... yellow;
}
.parent p:first-child {
text-decoration: line-through;
}
// Does not work
.parent div:first-child {
font-size: 20px;
}
// Use this instead
.parent div:first-of-type {
text-decoration: underline;
}
// This is second child regardless of its type
.parent div:nth-child(2) {
border: ...
Can dplyr package be used for conditional mutating?
... for operations on tables & I don't want to go all the way to C++. It does require being really careful about modifications in place, though!
– Ken Williams
Dec 12 '17 at 15:50
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How to check which locks are held on a table
...os_waiting_task (both trying to update the same table). But your statement does not return any rows. Any ideas?
– a_horse_with_no_name
Oct 8 '14 at 13:02
add a comment
...
Differences between git remote update and fetch?
...te set to true.
The current 1.8.3.2 documentation for Git's configuration doesn't mention the remotes.default setting, but I consulted The Almighty Google about it and found this helpful explanation from Mislav Marohnić:
$ git config remotes.default 'origin mislav staging'
$ git remote update
# ...
Choice between vector::resize() and vector::reserve()
... you pass to resize() as argument. But reserve() only allocates memory, it doesn't create instances. That is,
std::vector<int> v1;
v1.resize(1000); //allocation + instance creation
cout <<(v1.size() == 1000)<< endl; //prints 1
cout <<(v1.capacity()==1000)<< endl; //p...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
... is defined in RFC 2672. Could you explain how this relates to OP? Route53 does not allow SOA or NS record deletion, at least from the standard interface and DNAME isn't an available option.
– Josh Habdas
Mar 11 '19 at 10:32
...
Views vs Components in Ember.js
...ing only based on the data it gets passed in. And yes depending on what it does this could become a mess very quickly. A dedicated controller would make absolute sense, and a way it could work would be if components could become logic injected into it, but as far I know components are not part of em...
Declaring variables inside loops, good practice or bad practice?
...that the variable has already been declared and just skip that portion, or does it actually create a spot for it in memory each time?
It can reuse the space the variable consumes, and it can pull invariants out of your loop. In the case of the const char array (above) - that array could be pulled ...
“To Do” list before publishing Android app to market [closed]
...
Really, don't bother removing code comments. Your source code doesn't make it to the user's phone - only the compiled code gets there, and that doesn't contain any reference to your comments whatsoever.
Android users tend to appreciate apps being as small as possible, so double-check y...