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How to show a dialog to confirm that the user wishes to exit an Android Activity?
...your app: pressing home, selecting a notification, receiving a phone call, etc.
– hackbod
Feb 13 '10 at 19:56
This wor...
Fastest way to find second (third…) highest/lowest value in vector or column
...ightly more general function, which can be used to find the 2nd, 3rd, 4th (etc.) max:
maxN <- function(x, N=2){
len <- length(x)
if(N>len){
warning('N greater than length(x). Setting N=length(x)')
N <- length(x)
}
sort(x,partial=len-N+1)[len-N+1]
}
maxN(1:10)
...
How do I get the full path to a Perl script that is executing?
...rking directory if the script is at or below the CWD
Additionally, cwd(), getcwd() and abs_path() are provided by the Cwd module and tell you where the script is being run from
The module FindBin provides the $Bin & $RealBin variables that usually are the path to the executing script; this modul...
Create an empty object in JavaScript with {} or new Object()?
... parameter- the object creation to other constructors like string, number, etc... It's highly important to keep this in mind when you're managing dynamic data to create objects..
Many authors recommend not to use the object constructor when you can use a certain literal notation instead, where you ...
Does MySQL index foreign key columns automatically?
... Index. So, may be that is the reason MS SQL, DB2 (Oracle I'm not sure on) etc leave it up to the DBA; after all multiple indexes on large tables can cause issues with performance and space.
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How can you speed up Eclipse?
...ory Eclipse will get (in simple terms). With -Xmx4g, it gets 4 GB of RAM, etc.
Note:
Referring to the jvm.dll has advantages:
Splash screen coming up sooner.
Eclipse.exe in the process list instead of java.exe.
Firewalls: Eclipse wants access to the Internet instead of Java.
Window management b...
How to get device make and model on iOS?
... the iPad Pro models (both sizes). For future reference, the model numbers/etc. can be found in The iPhone Wiki.
Edit 3: Add support for iPhone XS, iPhone XS Max and iPhone XR.
Edit 4: Add support for iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max.
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Integer division with remainder in JavaScript?
...t desired: 3.5 % 2 evaluates to 1.5. Make sure to handle (parseInt, floor, etc.) as required
– user166390
Nov 19 '10 at 19:09
...
Force DOM redraw/refresh on Chrome/Mac
...
But it left some 'remains' like 'display: block' etc that sometimes can destroy page structure.
– pie6k
Jul 21 '14 at 9:14
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How to import load a .sql or .csv file into SQLite?
...e you though about a "proper" RDB e.g. postgres or even bigquery, redshift etc
– Rufus Pollock
Feb 22 '15 at 21:40
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