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trying to align html button at the center of the my page [duplicate]
...e got two buttons and you want them the same width you don't even need to know the size of each to get them to be the same width - because the table will magically collapse them for you.
JsFiddle
(this also works if they're inline and you want to center two buttons side to side - try doing that...
What do I have to do to get Core Data to automatically migrate models?
...
I've now found out that this is quite simple - once you know where to look.
In my AppDelegate I set-up the NSPersistentStoreCoordinator - and you need to add some options to this to tell it to handle auto-migrate:
NSDictionary *...
Rails 3: Get Random Record
...-----+---------------+---------+---------+-------+------+-------+
we can now use only indexes and the primary key and do the job about 500 times faster!
UPDATE:
as pointed out by icantbecool in comments the above solution has a flaw if there are deleted records in the table.
A workaround in tha...
Code Golf: Lasers
... $_.
$s="#";
$s is the symbol of whatever the beam is sitting on top of now. Since the laser emitter is to be treated like a wall, set this to be a wall to begin with.
if (tr/v<^/>v</) {
my $o;
$o .= "\n" while s/.$/$o .= $&, ""/meg;
tr,/\\,\\/, for $o, $s;
$_ = $o;
}
If t...
For i = 0, why is (i += i++) equal to 0?
...ough decomposition of i += i++ to the parts it is made of requires one to know that both += and ++ are not atomic (that is, neither one is a single operation), even if they look like they are. The way these are implemented involve temporary variables, copies of i before the operations take place - o...
typeof !== “undefined” vs. != null
...e would use the !== or === operators when comparing a value whose type is known to be a string.
– Nicolas Rinaudo
Aug 30 '13 at 7:38
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show ...
Collisions when generating UUIDs in JavaScript?
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Thanks, I'm going with uuid.js now, since it uses browser's strong crypto if available. Will see if there are any collisions.
– Muxa
Aug 31 '11 at 22:21
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How do you get a string from a MemoryStream?
If I am given a MemoryStream that I know has been populated with a String , how do I get a String back out?
11 Answers...
Android 4.1: How to check notifications are disabled for the application?
...d for the new notifications declares that you can't.
Edit
2016 update: Now you can check it, as said in this Google I/O 2016 video.
Use NotificationManagerCompat.areNotificationsEnabled(), from support library, to check if notifications are blocked on API 19+. The versions below API 19 will ret...
AppStore - App status is ready for sale, but not in app store
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Is there any way to know when the app is indeed in the store (besides keep accessing every hour) ?
– Daniel
Oct 10 '17 at 23:09
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