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DynamoDB vs MongoDB NoSQL [closed]
...ject, we plan to store from about 500k records per month in the first year and maybe more for the next years this is a vertical application so there's no need to use a database for this, that's the reason why I decided to choose a noSQL data storage.
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Rails 3 check if attribute changed
...ns an array of the attributes changed for that object.
Both @user.changed and attrs are arrays so I can get the intersection (see ary & other ary method). The result of the intersection is an array. By calling any? on the array, I get true if there is at least one intersection.
Also very usefu...
jQuery hide element while preserving its space in page layout
...style to none, which completely removes the element from the document flow and causes it to not take up space.
visibility:hidden keeps the space as it is.
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How to put comments in Django templates
...wered Jul 11 at 9:24
Rahul ShyokandRahul Shyokand
7388 bronze badges
a...
How to Define Callbacks in Android?
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In many cases, you have an interface and pass along an object that implements it. Dialogs for example have the OnClickListener.
Just as a random example:
// The callback interface
interface MyCallback {
void callbackCall();
}
// The class that takes the c...
C# DropDownList with a Dictionary as DataSource
I want to set DataTextField and DataValueField of a Dropdownlist (languageList) using a Dictionary (list) of languageCod (en-gb) as key and language name (english) as the text to display.
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Float right and position absolute doesn't work together
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Thanks for your help. I use left:50% and margin-left:-??px (?? depend on your div width)
– trbaphong
Jul 4 '12 at 20:46
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Programmatically fire button click event?
...ally fire a button click event? I have a button placed there in an UIView, and in a particular scenario i want to click the button via code, not manually as a user. Is it possible in iOS development? Please provide your suggestions and guide me how to do that.
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maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e
...06462
In Eclipse/Preferences/Maven/Lifecycle Mappings browse to this file and click OK:
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Swift alert view with OK and Cancel: which button tapped?
I have an alert view in Xcode written in Swift and I'd like to determine which button the user selected (it is a confirmation dialog) to do nothing or to execute something.
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