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How does Java Garbage Collection work with Circular References?
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Java's GC considers objects "garbage" if they aren't reachable through a chain starting at a garbage collection root, so these objects will be collected. Even though objects may point to each other to form a cycle, they're still garbage i...
How can I detect if this dictionary key exists in C#?
...th contact data. I have the following code, which is functional , but not ideal:
5 Answers
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How do I automatically sort a has_many relationship in Rails?
...e adding a default order is cumbersome for some reason or you want to override your default in certain cases, it is trivial to specify it in the fetching action itself:
sorted = article.comments.order('created_at').all
sha...
Postgres: “ERROR: cached plan must not change result type”
...set_column_information will fix things in the short term if you want to avoid restarting.
– Grant Hutchins
Sep 20 '11 at 14:32
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How to tell if JRE or JDK is installed
... @Pacerier You can edit / or make a entry if none found - inside your environmental variables.
– Maciej Cygan
Dec 11 '14 at 13:19
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gitignore does not ignore folder
In the root of my project I have a foo folder. Inside the foo folder I have a bar folder. I would like to ignore all changes to all files inside my bar folder. I have this in my gitignore :
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is there a post render callback for Angular JS directive?
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If the second parameter, "delay" is not provided, the default behaviour is to execute the function after the DOM has completed rendering. So instead of setTimeout, use $timeout:
$timeout(function () {
//DOM has finished rendering
});
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jQuery Call to WebService returns “No Transport” error
...get to an S3 .json file in IE9). Setting jQuery.support.cors = true; got rid of the No Transport error but I was still getting Permission denied errors.
What did work for me was to use the jQuery-ajaxTransport-XDomainRequest to force IE9 to use XDomainRequest. Using this did not require setting jQ...
Ruby: kind_of? vs. instance_of? vs. is_a?
...at's an interesting reason. can you break this, thouugh? like can you override kind_of? but not is_a??
– Claudiu
Oct 8 '10 at 19:38
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Python naming conventions for modules
...n naming conventions and other style advice, see PEP 8, the Python style guide.
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