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What data is stored in Ephemeral Storage of Amazon EC2 instance?
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Anything that is not stored on an EBS volume that is mounted to the instance will be lost.
For example, if you mount your EBS volume at /mystuff, then anything not in /mystuff will be lost. If you don't mount an ebs volume and save stuff on it,...
jQuery: Performing synchronous AJAX requests
...precated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
Firefox:
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help http://xhr.spec.wha...
Creating a expressjs middleware that accepts parameters
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The second method caches parameters, which or may not be the desired behavior.
– Pier-Luc Gendreau
Dec 14 '14 at 2:42
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How can I convert a Unix timestamp to DateTime and vice versa?
...Time.AddSeconds( unixTimeStamp ).ToLocalTime();
return dtDateTime;
}
Or, for Java (which is different because the timestamp is in milliseconds, not seconds):
public static DateTime JavaTimeStampToDateTime( double javaTimeStamp )
{
// Java timestamp is milliseconds past epoch
System.Da...
Ruby Metaprogramming: dynamic instance variable names
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The method you are looking for is instance_variable_set. So:
hash.each { |name, value| instance_variable_set(name, value) }
Or, more briefly,
hash.each &method(:instance_variable_set)
If your instance variable names are missing the "@" (as the...
Using PUT method in HTML form
Can I use a PUT method in an HTML form to send data from the form to a server?
7 Answers
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Exit codes in Python
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What you're looking for in the script is calls to sys.exit(). The argument to that method is returned to the environment as the exit code.
It's fairly likely that the script is never calling the exit method, and that 0 is the default exit code....
android edittext onchange listener
... can see if the user finished editing the text if the EditText loses focus or if the user presses the done button (this depends on your implementation and on what fits the best for you).
Second, you can't get an EditText instance within the TextWatcher only if you have declared the EditText as an i...
Rails 4: before_filter vs. before_action
In rails >4.0.0 generators creates CRUD operations with before_action not before_filter . It seems to do the same thing. So what's the difference between these two?
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Print array to a file
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Either var_export or set print_r to return the output instead of printing it.
Example from PHP manual
$b = array (
'm' => 'monkey',
'foo' => 'bar',
'x' => array ('x', 'y', 'z'));
$results = print_r($b, true); // $...