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How do iOS Push Notifications work?
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@Mugen: Device token is used by APNS to identify which device it is supposed to forward the payload sent by provider!
– D4ttatraya
Jan 6 '17 at 13:24
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Iterate two Lists or Arrays with one ForEach statement in C#
...e to the anonymous type with the named fields, you can also save on braces by using a Tuple and its static Tuple.Create helper:
foreach (var nw in numbers.Zip(words, Tuple.Create))
{
Console.WriteLine(nw.Item1 + nw.Item2);
}
...
How do I connect to a specific Wi-Fi network in Android programmatically?
...t of Wi-Fi networks available and connect to whichever network is selected by the user.
10 Answers
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Spring Boot application as a Service
...n the usual /var/run directory and logging in the usual /var/log directory by default.
You just need to symlink your jar into /etc/init.d like so
sudo link -s /var/myapp/myapp.jar /etc/init.d/myapp
OR
sudo ln -s ~/myproject/build/libs/myapp-1.0.jar /etc/init.d/myapp_servicename
After that you...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
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@colin, Not fully automatic, but you can use naresid to put the missing values back in after using na.exclude. A quick example: tmp <- data.frame(x=factor(c('a','b','c',NA,'a'))); tmp2 <- na.exclude(tmp); tmp3 <- model.matrix( ~x-1, tmp2); tmp4 <- naresid(attr(t...
Creating a textarea with auto-resize
... false);
};
}
function init () {
var text = document.getElementById('text');
function resize () {
text.style.height = 'auto';
text.style.height = text.scrollHeight+'px';
}
/* 0-timeout to get the already changed text */
function delayedResize () {
...
How to know if user is logged in with passport.js?
...umented but there is a isAuthenticated() method which is inserted into req by passport.
Can be used as follows,
req.isAuthenticated() // returns true if auth, false if not
// auth.js
module.exports = {
ensureAuthenticated: (req, res, next) => {
if (req.isAuthenticated()) {
return...
Converting XML to JSON using Python?
... some understanding of what you want to do with the results.
That being said, Python's standard library has several modules for parsing XML (including DOM, SAX, and ElementTree). As of Python 2.6, support for converting Python data structures to and from JSON is included in the json module.
So th...
Line-breaking widget layout for Android
....com/google/flexbox-layout at this moment.
You can use it in your project by adding dependency to your build.gradle file:
dependencies {
compile 'com.google.android:flexbox:0.3.2'
}
More about FlexboxLayout usage and all the attributes you can find in repository readme or in Mark Allison art...
How can i tell if an object has a key value observer attached
...{
[someObject removeObserver:someObserver forKeyPath:somePath];
}@catch(id anException){
//do nothing, obviously it wasn't attached because an exception was thrown
}
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