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How to detect Safari, Chrome, IE, Firefox and Opera browser?
...Notification, which was introduced after version 7.1, to cover all Safaris from 3.0 and upwards.
Opera: window.opera has existed for years, but will be dropped when Opera replaces its engine with Blink + V8 (used by Chromium).
Update 1: Opera 15 has been released, its UA string looks like Chrome, bu...
Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
...riables.
NOTE: This can happen when using the OpenSSL binary distribution from Shining Light Productions (a compiled + installer version of the official OpenSSL that is free to download & use). This distribution is "semi-officially" linked from OpenSSL's site as a "service primarily for operati...
Making a property deserialize but not serialize with json.net
...the config object into a JObject, then simply remove the unwanted property from the JSON before writing it out. It's just a couple of extra lines of code.
JObject jo = JObject.FromObject(config);
// remove the "ObsoleteSetting" JProperty from its parent
jo["ObsoleteSetting"].Parent.Remove();
jso...
Catch a thread's exception in the caller thread in Python
...oversimplifying this, because this seems sufficient for most things to me.
from threading import Thread
class PropagatingThread(Thread):
def run(self):
self.exc = None
try:
if hasattr(self, '_Thread__target'):
# Thread uses name mangling prior to Pyth...
How to cast int to enum in C++?
...at value. Otherwise the produced enum value will be whatever value results from converting the expression to the enum's underlying type. If VC++ does something different then I think it's non-conformant.
– bames53
Jul 12 '12 at 17:09
...
How to access custom attributes from event object in React?
React is able to render custom attributes as described at
http://facebook.github.io/react/docs/jsx-gotchas.html :
15 Answ...
What is the purpose of the reader monad?
... is it equipped with? What is it good for?
How is the monad implemented? From where does it arise?
From the first approach, the reader monad is some abstract type
data Reader env a
such that
-- Reader is a monad
instance Monad (Reader env)
-- and we have a function to get its environment
as...
How to calculate the time interval between two time strings
...fically, the strptime function, which parses a string into a time object.
from datetime import datetime
s1 = '10:33:26'
s2 = '11:15:49' # for example
FMT = '%H:%M:%S'
tdelta = datetime.strptime(s2, FMT) - datetime.strptime(s1, FMT)
That gets you a timedelta object that contains the difference bet...
What is this date format? 2011-08-12T20:17:46.384Z
...
The T is just a literal to separate the date from the time, and the Z means "zero hour offset" also known as "Zulu time" (UTC). If your strings always have a "Z" you can use:
SimpleDateFormat format = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US)...
Cannot import XSSF in Apache POI
...
For OOXML to work you need the POI-OOXML jar which is separately packaged from the POI jar.
Download the POI-OOXML jar from the following location -
http://repo1.maven.org/maven2/org/apache/poi/poi-ooxml/3.11/poi-ooxml-3.11.jar
For Maven2 add the below dependency -
<dependency>
<gr...