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How to make a JSONP request from Javascript without JQuery?
...t's worth pointing out that the response should be of the form: foo(payload_of_json_data), the idea being that when it gets loaded into the script tag, it calls the foo function with the payload already as a javascript object and no parsing is necessary.
– Octopus
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Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
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You have to upload your public key to Heroku:
heroku keys:add ~/.ssh/id_rsa.pub
If you don't have a public key, Heroku will prompt you to add one automatically which works seamlessly. Just use:
heroku keys:add
To clear all your previous keys do :
heroku keys:clear
To display all your ex...
Dependent DLL is not getting copied to the build output folder in Visual Studio
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{
private static void Dummy()
{
Action<Type> noop = _ => {};
var dummy = typeof(AbcDll.AnyClass);
noop(dummy);
}
}
This infomation actually costed me hours to figure out, so I thought I share it.
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Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
...ur browser and add it to cacerts file of your JVM. You can either edit JAVA_HOME/jre/lib/security/cacerts file or run you application with -Djavax.net.ssl.trustStore parameter. Verify which JDK/JRE you are using too as this is often a source of confusion.
See also: How are SSL certificate server na...
FFmpeg on Android
...e generated in step 1, just add a line similar to this to Android.mk: LOCAL_STATIC_LIBRARIES := libavcodec libavformat libavutil libc libz
Use the ffmpeg-wrapping dynamic library from your java sources. There's enough documentation on JNI out there, you should be fine.
Regarding using ffmpeg for p...
iOS Equivalent For Android Shared Preferences
...alue, forKey: key)
}
}
Example
//set
Configuration.value(value: "my_value", forKey: "key_1")
//get
let myValue = Configuration.value(defaultValue: "default_value", forKey: "key_1")
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How to sort a Ruby Hash by number value?
...ea.com" => 745, "siteb.com" => 9, "sitec.com" => 10 }
metrics.sort_by {|_key, value| value}
# ==> [["siteb.com", 9], ["sitec.com", 10], ["sitea.com", 745]]
If you need a hash as a result, you can use to_h (in Ruby 2.0+)
metrics.sort_by {|_key, value| value}.to_h
# ==> {"siteb.c...
How to know what the 'errno' means?
...errno));
}
Linux also supports the explicitly-threadsafe variant strerror_r().
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Have nginx access_log and error_log log to STDOUT and STDERR of master process
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Edit: it seems nginx now supports error_log stderr; as mentioned in Anon's answer.
You can send the logs to /dev/stdout. In nginx.conf:
daemon off;
error_log /dev/stdout info;
http {
access_log /dev/stdout;
...
}
edit: May need to run ln -sf /proc/self/fd...
How to define two fields “unique” as couple
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There is a simple solution for you called unique_together which does exactly what you want.
For example:
class MyModel(models.Model):
field1 = models.CharField(max_length=50)
field2 = models.CharField(max_length=50)
class Meta:
unique_together = ('field1', 'fi...