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Get last n lines of a file, similar to tail
...bitrary position within a sequence of encoded bytes can have undefined results when you attempt to decode to Unicode starting from that position. The suggestion offered at the link is to try opening the file in binary mode and do the decoding yourself, catching the DecodeError exceptions.
...
How to get a thread and heap dump of a Java process on Windows that's not running in a console
...source Monitor to get the pid. Then
jmap -dump:format=b,file=cheap.hprof <pid>
to get the heap for that process.
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Int or Number DataType for DataAnnotation validation attribute
...ericAttribute : ValidationAttribute
{
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
if (value != null)
{
decimal val;
var isNumeric = decimal.TryParse(value.ToString(), out val);
if (!isNu...
Removing transforms in SVG files
...ransform" attributes in layers and delete them
How to move all objects altogether without creating another transform attributes
Go to Edit -> Select All in All Layers
Go to Object -> Transform
In Transform panel
Uncheck Relative move and check Apply to each object separately
Set Horizont...
How can I tell Moq to return a Task?
...ly return a Task with the desired values using .Returns() and Task.FromResult, e.g.:
MyType someValue=...;
mock.Setup(arg=>arg.DoSomethingAsync())
.Returns(Task.FromResult(someValue));
Update 2014-06-22
Moq 4.2 has two new extension methods to assist with this.
mock.Setup(arg=>...
Android: Vertical alignment for multi line EditText (Text area)
... with a minor tweak: android:gravity="top|start". Complete code example:
<EditText
android:id="@+id/EditText02"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lines="5"
android:gravity="top|start"
android:inputType="textMultiLine"
and...
iphone/ipad: How exactly use NSAttributedString?
...ng, to create an NSAttributedString.
It isn't complete - it only handles <b> and <i> tags, for starters, and doesn't bother with any error handling - but is hopefully also a useful example of how to get started with NSXMLParserDelegate ...
@interface ExampleHTMLStringToAttributedStri...
Python `if x is not None` or `if not x is None`?
... 9 RETURN_VALUE
Stylistically, I try to avoid not x is y. Although the compiler will always treat it as not (x is y), a human reader might misunderstand the construct as (not x) is y. If I write x is not y then there is no ambiguity.
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iPhone: How to switch tabs with an animation?
...controller like this:
@interface TabSwitchAnimationController : NSObject <UIViewControllerAnimatedTransitioning>
@end
@implementation TabSwitchAnimationController
- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext
{
return 0.2;
}
- ...
How do I create an immutable Class?
...property as follows:
public class MyClass
{
public MyClass(..., IList<MyType> items)
{
...
_myReadOnlyList = new List<MyType>(items).AsReadOnly();
}
public IList<MyType> MyReadOnlyList
{
get { return _myReadOnlyList; }
}
private...