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Returning value from called function in a shell script
...r"
testlock(){
retval=""
if mkdir "$lockdir"
then # Directory did not exist, but it was created successfully
echo >&2 "successfully acquired lock: $lockdir"
retval="true"
else
echo >&2 "cannot acquire lock, giving up on $lockdir"
retv...
Is there a way to chain multiple value converters in XAML?
... @DLeh This is not really elegant as is doesn't work. It provides all converters with final target type instead of correct target type...
– Aleksandar Toplek
Sep 7 '15 at 10:53
...
How do I validate a date string format in python?
...
>>> import datetime
>>> def validate(date_text):
try:
datetime.datetime.strptime(date_text, '%Y-%m-%d')
except ValueError:
raise ValueError("Incorrect data format, should be YYYY-MM-DD")
>>> validate('2003-12-23')
>>...
What is Mocking?
...ck to answer my own question above. The answer, is that the only way to validate that the code went through the desired function and not another function is using a bool check. Using that bool check is the distinction between stubs and mocks. Having that said a lot of times you literally just test t...
Deserialize JSON to ArrayList using Jackson
...[] pojos = objectMapper.readValue(json, MyPojo[].class);
This way you avoid all the hassle with the Type object, and if you really need a list you can always convert the array to a list by:
List<MyPojo> pojoList = Arrays.asList(pojos);
IMHO this is much more readable.
And to make it be a...
How can I set the Secure flag on an ASP.NET Session Cookie?
... which only transmit all cookies including session in SSL only and also inside forms authentication, but if you turn on SSL on httpcookies you must also turn it on inside forms configuration too.
Edit for clarity:
Put this in <system.web>
<httpCookies requireSSL="true" />
...
What's the difference between returning void and returning a Task?
... at various C# Async CTP samples I see some async functions that return void , and others that return the non-generic Task . I can see why returning a Task<MyType> is useful to return data to the caller when the async operation completes, but the functions that I've seen that have a retur...
How to make inline functions in C#
...eLine(x);
}
Action<int> helloWorld = delegate // parameters can be elided if ignored
{
Console.WriteLine("Hello world!");
}
Lambdas are new in C# 3.0 and come in two flavours.
Expression lambdas:
Func<int, int, int> add = (int x, int y) => x + y; // or...
Func<int, int, int...
How can I set the aspect ratio in matplotlib?
...th 'equal' aspect ratio:
and one with 'auto' aspect ratio:
The code provided below in the 'original answer' provides a starting off point for an explicitly controlled aspect ratio, but it seems to be ignored once an imshow is called.
Original Answer:
Here's an example of a routine that will ad...
Override Java System.currentTimeMillis for testing time sensitive code
Is there a way, either in code or with JVM arguments, to override the current time, as presented via System.currentTimeMillis , other than manually changing the system clock on the host machine?
...