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How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...uses express, socket.io, node_redis and last but not least the sample code from media fire.
Install node.js+npm(as non root)
First you should(if you have not done this yet) install node.js+npm in 30 seconds (the right way because you should NOT run npm as root):
echo 'export PATH=$HOME/local/bin:...
How to extract filename.tar.gz file
...ipped tar file. Your output says that it isn't. If you downloaded the file from the internet, you probably didn't get the entire file, try again.
Without more knowledge of the source of your file, nobody here is going to be able to give you a concrete solution, just educated guesses.
...
How can I upload files asynchronously?
...rk but there are still clusters of higher usage.
The important take-away from this —whatever the feature— is, check what browser your users use. If you don't, you'll learn a quick and painful lesson in why "works for me" isn't good enough in a deliverable to a client. caniuse is a useful tool ...
Is it possible in SASS to inherit from a class in another file?
...ssible.
If you want all <button> elements to inherit the .btn class from Twitter Bootstrap's Default buttons
In your styles.scss file you would have to first import _bootstrap.scss:
@import "_bootstrap.scss";
Then below the import:
button { @extend .btn; }
...
Best documentation for Boost:asio?
...estion:
There really is very scarce documentation about Boost.Asio aside from the introduction and tutorial. I am not the author, but this is mostly because there are just too many things to document for something as low-level as an Asynchronous IO Library.
The examples give more away than the tut...
Do Swift-based applications work on OS X 10.9/iOS 7 and lower?
...bout what changed 10.8->10.9 and 6.x->7.0 that allows code generated from Swift to run?
– Ivan Vučica
Jun 7 '14 at 9:53
21
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iPhone OS: How do I create an NSDate for a specific date?
...0];
[comps setYear:2010];
NSDate *date = [[NSCalendar currentCalendar] dateFromComponents:comps];
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Calling startActivity() from outside of an Activity context
...her
cache the Context object via constructor in your adapter, or
get it from your view.
Or as a last resort,
add - FLAG_ACTIVITY_NEW_TASK flag to your intent:
_
myIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Edit - i would avoid setting flags as it will interfere with normal flow of ...
How to detect page zoom level in all modern browsers?
...w it's an even bigger mess than it was when this question was first asked. From reading all the responses and blog posts I could find, here's a summary. I also set up this page to test all these methods of measuring the zoom level.
Edit (2011-12-12): I've added a project that can be cloned: https:/...
The apk must be signed with the same certificates as the previous version
...e.
How do I check which signing keys were used?
Gather the information from the APK
You can check which certificates the original APK and update APK were signed with by using these commands, using the Java keytool:
keytool -list -printcert -jarfile original.apk
keytool -list -printcert -jarfil...