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unix diff side-to-side results?
...aximum output width (130 columns). Add the diff option --width=$COLUMNS to set this to your terminal width.
– ntc2
Nov 25 '13 at 20:13
...
Should I use single or double colon notation for pseudo-elements?
...look reasonable in CSS 2.1.
http://www.w3.org/TR/CSS2/syndata.html#rule-sets
You could however use
.foo:after { /*styles*/ }
.foo::after { /*styles*/ }
On the other hand this is more verbose than necessary; for now, you can stick with the one-colon notation.
...
Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
...paring rules with each other and combining these that had exactly the same set of properties and values. As a result, instead of #LI_1{...}, #LI_2{...} I got #LI_1, #LI_2 {...}.
Problem 6 - cleaning up and fixing indentation of HTML
Since I was happy with the result, I moved to HTML. It looked lik...
Xcode 4 - slow performance
...absolutely essential tip. It's worth mentioning that it does temporarily reset your window layout (which may or may not be obvious), but it's a small price to pay. Also, if people want to manually remove the workspace file they can control-click on their xcodeproj file, choose 'show package contents...
Good or bad practice for Dialogs in wpf with MVVM?
...I'd definitely do is make the event receive a boolean for when you need to set "false" in the DialogResult.
event EventHandler<RequestCloseEventArgs> RequestCloseDialog;
and the EventArgs class:
public class RequestCloseEventArgs : EventArgs
{
public RequestCloseEventArgs(bool dialogRe...
Bootstrap modal: background jumps to top on toggle
...
When the modal opens a modal-open class is set to the <body> tag. This class sets overflow: hidden; to the body. Add this rule to your stylesheet to override the bootstrap.css style:
body.modal-open {
overflow: visible;
}
Now the scroll should stay in pla...
When do we have to use copy constructors?
...that is strongly associated with the object's identity
In rare cases a subset of the object's observable state may constitute (or be considered) an inseparable part of the object's identity and should not be transferable to other objects (though this can be somewhat controversial).
Examples:
The...
Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh
...tart.
If your sure your application will always remain simple, or you can set some benchmark of application complexity after which you will integrate one of the more complex solutions, then I'd recommend not using tiles/etc. Otherwise, use it from the get-go.
...
When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
...ature.
e.g. System logs, very precise example is AWS cloudwatch logs.
Data set is vast/big?
Yes NoSQL database are the better candidate for applications where database needs to manage million or even billions of records without compromising over performance.
Trade off between scaling over consistenc...
find() with nil when there are no records
..."
end
If you want to recover from the error in the rescue block (e.g. by setting a placeholder user (null pattern)), you can continue with your code below this block. Otherwise you might just put all your code for the "happy case" in the block between "begin" and "rescue".
...