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Easy way to prevent Heroku idling?
In the Heroku free apps the dynos seem to keep idling - my app has very low traffic but it's also not really acceptable in my case that my users have to wait 20+ seconds to spin up a new dyno.
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What is the meaning and difference between subject, user and principal?
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These are hierarchical in the way that genus, species and individual are hierarchical.
Subject - In a security context, a subject is any entity that requests access to an object. These are generic terms used to denote the thing requesting access and the thing the request is made again...
Fade In Fade Out Android Animation in Java
...r each, could you use something like this ? I tried but it's not really fluid. The aim was to simulate for example a bulb that would not work properly, and twinkle.
– Chayy
Aug 12 '11 at 16:36
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jQuery event to trigger action when a div is made visible
...() method.
You could also create another method so you don't have to override the original .show() method.
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Bootstrap Alert Auto Close
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For a smooth slideup:
$("#success-alert").fadeTo(2000, 500).slideUp(500, function(){
$("#success-alert").slideUp(500);
});
$(document).ready(function() {
$("#success-alert").hide();
$("#myWish").click(function showAlert()...
Get environment variable value in Dockerfile
...y app's configuration is contained within environment variables (loaded inside the app with dotenv ).
6 Answers
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How to handle Handler messages when activity/fragment is paused
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Although the Android operating system does not appear to have a mechanism that sufficiently addresses your problem I believe this pattern does provide a relatively simple to implement workaround.
The following class is a wrapper around androi...
Best way to iterate through a Perl array
...sage: They're all the same except for #5.
for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes of the array.
In terms of readability: #1.
In terms of flexibility: #1/#4 and #5.
#2 does not support elements that are false. #2 and #3 are destructive.
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How to create JSON string in C#
...;Person> people = new List<Person>{
new Person{ID = 1, FirstName = "Scott", LastName = "Gurthie"},
new Person{ID = 2, FirstName = "Bill", LastName = "Gates"}
};
string jsonString = people.ToJSON();
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Maven 3 warnings about build.plugins.plugin.version
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Add a <version> element after the <plugin> <artifactId> in your pom.xml file. Find the following text:
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
Add the version tag to it:
<plugin>
<artifactId>maven-compiler-plugin</art...