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endsWith in JavaScript
... with ES6 adding endsWith, the point is moot. :-)
ORIGINAL ANSWER:
I know this is a year old question... but I need this too and I need it to work cross-browser so... combining everyone's answer and comments and simplifying it a bit:
String.prototype.endsWith = function(suffix) {
return th...
Random Gaussian Variables
...ution. A simple implementation:
Random rand = new Random(); //reuse this if you are generating many
double u1 = 1.0-rand.NextDouble(); //uniform(0,1] random doubles
double u2 = 1.0-rand.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2);...
Executing Batch File in C#
... = new ProcessStartInfo("cmd.exe", "/c " + command);
processInfo.CreateNoWindow = true;
processInfo.UseShellExecute = false;
// *** Redirect the output ***
processInfo.RedirectStandardError = true;
processInfo.RedirectStandardOutput = true;
process = Process.Start(processInf...
Calculate the median of a billion numbers
...
Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if this had been an interview, but never mind:
Machine 1 shall be called the "control machine", and for the sake of argument either it starts with all the data, and sends it in equal parcels to the oth...
Why does sys.exit() not exit when called inside a thread in Python?
...
What if I did want to exit the program
from the thread?
Apart from the method Deestan described you can call os._exit (notice the underscore). Before using it make sure that you understand that it does no cleanups (like callin...
UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...登录验证logging.php
在bbs的logging.php中如下代码段
} elseif($action == 'login') {
if($discuz_uid) {
$ucsynlogin = '';
showmessage('login_succeed', $indexname);
}
检查用户id变量$discuz_uid是否为空来判断，用户是否登录（包括从别的应用登录。...
When I catch an exception, how do I get the type, file, and line number?
...ould be careful about unpacking sys.exc_info() into local variables, since if you get an exception in the except handler, the local vars could get kept in a circular reference and not GC'd. Best practice is to always just use slices off of sys.exc_info() instead. Or use other modules like tracebac...
Setting variable to NULL after free
... @Paul: In the specific case, the declaration could read int *nPtr=NULL;. Now, I would agree that this would be redundant, with a malloc following right in the next line. However, if there is code between the declaration and the first initialization, somebody might start using the variable even tho...
iOS: How to store username/password within an app?
...only accessible to your app, there is no need to delete it when app quits (if that was your concern).
Apple provides sample code that stores, reads and deletes keychain items and here is how to use the keychain wrapper class from that sample which greatly simplifies using Keychain.
Include Securit...
How to specify different Debug/Release output directories in QMake .pro file
...and then make in the build folder for your target's chosen configuration.
If you wish to create these folders and perform the two (or more) builds in them, you'll need a top-level makefile, possibly created from a top-level project file via qmake.
It's not uncommon to have more than two build conf...