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How to remove trailing whitespaces with sed?
...syntax on OSX:
sed -i '' -E 's/[ '$'\t'']+$//' "$1"
Three single-quoted strings ultimately become concatenated into a single argument/expression. There is no concatenation operator in bash, you just place strings one after the other with no space in between.
The $'\t' resolves as a literal tab-c...
Is it valid to define functions in JSON results?
... "basic types" supported are:
Number (integer, real, or floating
point)
String (double-quoted Unicode
with backslash escaping)
Boolean
(true and false)
Array (an ordered
sequence of values, comma-separated
and enclosed in square brackets)
Object (collection of key:value
pairs, comma-separated and...
If my interface must return Task what is the best way to have a no-operation implementation?
...mprove performance even more if you cache the already completed task since all instances of completed tasks are the same:
public static class TaskExtensions
{
public static readonly Task CompletedTask = Task.FromResult(false);
}
With TaskExtensions.CompletedTask you can use the same instance ...
How to get a reversed list view on a list in Java?
...
Guava provides this: Lists.reverse(List)
List<String> letters = ImmutableList.of("a", "b", "c");
List<String> reverseView = Lists.reverse(letters);
System.out.println(reverseView); // [c, b, a]
Unlike Collections.reverse, this is purely a view... it doesn't a...
Passing data to Master Page in ASP.NET MVC
...n relevant to it:
public class MasterViewData
{
public ICollection<string> Navigation { get; set; }
}
Each view using that master page takes a strongly typed view data class containing its information and deriving from the master pages view data:
public class IndexViewData : MasterView...
Configuring Log4j Loggers Programmatically
...le = new ConsoleAppender(); //create appender
//configure the appender
String PATTERN = "%d [%p|%c|%C{1}] %m%n";
console.setLayout(new PatternLayout(PATTERN));
console.setThreshold(Level.FATAL);
console.activateOptions();
//add appender to any Logger (here is root)
Logger.getRootLogge...
网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...pecial characters “$-_.+!*’(),” [not including the quotes - ed], and reserved characters used for their reserved purposes may be used unencoded within a URL.”
“只有字母和数字[0-9a-zA-Z]、一些特殊符号“$-_.+!*’(),”[不包括双引号]、以及某些保留字，...
Flask-SQLAlchemy how to delete all rows in a single table
How do I delete all rows in a single table using Flask-SQLAlchemy?
3 Answers
3
...
How do I run only specific tests in Rspec?
...
You can run all tests that contain a specific string with --example (or -e) option:
rspec spec/models/user_spec.rb -e "User is admin"
I use that one the most.
share
|
...
C# “as” cast vs classic cast [duplicate]
...eter, then you have two choices:
First, using a normal cast:
if(myObj is string)
{
string value = (string)myObj;
... do something
}
else if(myObj is MyClass)
{
MyClass = (MyClass)myObj;
}
This requires that you check the type of the object using is so that you don't try to cast it t...