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How to determine if a number is a prime with regex?
...to find some non empty sub-sequence that can be repeated at least twice in order to form the sequence. If such a subsequence exists, it means that its length divides N, hence N is not prime.
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Why are mutable structs “evil”?
...foo, which it can use modify the fields of foo any number of times, in any order, until it returns, but it can't persist that reference. Before Method2 returns, unless it uses unsafe code, any and all copies that might have been made of its 'foo' reference will have disappeared. Method3, unlike Me...
How to quickly check if folder is empty (.NET)?
... You need to add SetLastError = true to the DllImport for FindFirstFile in order for the Marshal.GetHRForLastWin32Error() call to work correctly, as described in the Remarks section of the MSDN doc for GetHRForLastWin32Error().
– Joel V. Earnest-DeYoung
Jun 19 ...
How to ISO 8601 format a Date with Timezone Offset in JavaScript?
...d by an offset from UTC. The meaning is the same as JavaScript's, but the order of subtraction is inverted, so the result carries the opposite sign.
Also, there is no method on the native Date object called format, so your function in #1 will fail unless you are using a library to achieve this. R...
Using Git with an existing Xcode project
... process, mostly pieced together from the other answers on this page/site. Order is very important here
Open terminal and cd into the directory containing the .xcodeproj file
git init
In finder enter the newly created .git folder (in the same directory as the .xcodeproj file). Find info/exclude, o...
How do I use reflection to invoke a private method?
...meters, or with too much parameters, or not enough... or even in the wrong order (this one my favourite :) ). By the way return type could change as well.
Reflection is slow.
Private members reflection breaks encapsulation principle and thus exposing your code to the following :
Increase complex...
Print a file's last modified date in Bash
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EDITED: turns out that I had forgotten the quotes needed for $entry in order to print correctly and not give the "no such file or directory" error. Thank you all so much for helping me!
Here is my final code:
echo "Please type in the directory you want all the files to be listed with last ...
Android - implementing startForeground for a service?
...oid runAsForeground(){
Intent notificationIntent = new Intent(this, RecorderMainActivity.class);
PendingIntent pendingIntent=PendingIntent.getActivity(this, 0,
notificationIntent, Intent.FLAG_ACTIVITY_NEW_TASK);
Notification notification=new NotificationCompat.Builder(this)
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What's the difference between KeyDown and KeyPress in .NET?
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From MSDN:
Key events occur in the following order:
KeyDown
KeyPress
KeyUp
Furthermore, KeyPress gives you a chance to declare the action as "handled" to prevent it from doing anything.
sh...
How do I get jQuery to select elements with a . (period) in their ID?
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there must be quates in order to work:` $( "div[id='"+variable+"']" )` or ` $( "div[id='foo bar' ]" ) `
– olga
Sep 11 '16 at 23:39
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