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How to make a floated div 100% height of its parent?
...: absolute;
}
Explanation: The .right div is absolutely positioned. That means that its width and height, and top and left positiones will be calculed based on the first parent div absolutely or relative positioned ONLY if width or height properties are explicitly declared in CSS; if they aren't e...
How to implement has_many :through relationships with Mongoid and mongodb?
...tingNote
include Mongoid::Document
embedded_in :appointment
end
This means that you can retrieve the notes together with an appointment all together, whereas you would need multiple queries if this was an association. You just have to bear in mind the 16MB size limit for a single document whic...
What does it mean to hydrate an object?
When someone talks about hydrating an object, what does that mean?
4 Answers
4
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What is mod_php?
...
mod_php means PHP, as an Apache module.
Basically, when loading mod_php as an Apache module, it allows Apache to interpret PHP files (those are interpreted by mod_php).
EDIT : There are (at least) two ways of running PHP, when wor...
How can I select an element with multiple classes in jQuery?
...
@Shimmy: Yes. A space between two selectors means you're searching for descendants; i.e. .a .b searches for elements with class b that are descendants of an element with class a. So something like div a will only return a elements that are inside a div element.
...
How do I verify that an Android apk is signed with a release certificate?
...y -verbose -certs my_application.apk
If you see "CN=Android Debug", this means the .apk was signed with the debug key generated by the Android SDK
(means it is unsigned), otherwise you will find something for CN.
For more details see: http://developer.android.com/guide/publishing/app-signing.html
...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
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@Anthony are you sure you don't mean interrupt() for boost::thread? Also it appears that it's an original proposal, which changed since 2007.
– Alex B
Aug 30 '11 at 11:16
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Why does Clojure have “keywords” in addition to “symbols”?
...:bar, when the symbol FOO is in the package BAR
For keyword symbols that means that :foo, keyword:foo and keyword::foo are all the same symbol. Thus the latter two notations are usually not used.
So :foo is just parsed to be in the package KEYWORD, assuming that giving no package name before the...
form_for with nested resources
...you explain why we have to mention "@article" here like this and what this means? what does the below syntax do? : <%= form_for [@article, @comment] do |f| %>
– Arpit Agarwal
Oct 12 '16 at 8:23
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Pandas read_csv low_memory and dtype options
...etermine what dtype a column should have once the whole file is read. This means nothing can really be parsed before the whole file is read unless you risk having to change the dtype of that column when you read the last value.
Consider the example of one file which has a column called user_id.
It c...