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Are there any standard exit status codes in Linux?
...ld died with 11" */
}
How are you determining the exit status? Traditionally, the shell only stores an 8-bit return code, but sets the high bit if the process was abnormally terminated.
$ sh -c 'exit 42'; echo $?
42
$ sh -c 'kill -SEGV $$'; echo $?
Segmentation fault
139
$ expr 139 - 128
11
I...
Mocking member variables of a class using Mockito
...ing to make. Factor the sequence diagram into the objects that you can actually control. This means that if you are working with a framework class which has the dependent object anti-pattern you show above, then you should regard the object and its badly-factored member as a single unit in terms of ...
What to add for the update portion in ConcurrentDictionary AddOrUpdate
...d] = sessionId;
Store a key/value pair into the dictionary unconditionally, overwriting any value for that key if the key already exists: Use the indexer’s setter
(See: http://blogs.msdn.com/b/pfxteam/archive/2010/01/08/9945809.aspx)
The indexer is atomic, too. If you pass a function inst...
What goes into your .gitignore if you're using CocoaPods?
...
Personally I do not check in the Pods directory & contents. I can't say I spent long ages considering the implications but my reasoning is something like:
The Podfile refers to a specific tag or or commit of each dependency so...
What is the difference between setUp() and setUpClass() in Python unittest?
...erence (as noted in the answer by Benjamin Hodgson) is that setUpClass is called only once and that is before all the tests, while setUp is called immediately before each and every test. (NB: The same applies to the equivalent methods in other xUnit test frameworks, not just Python's unittest.)
From...
What is pseudopolynomial time? How does it differ from polynomial time?
...ng TSP takes time O(n · n!), which isn't polynomial time.
These runtimes all refer to some variable n that tracks the size of the input. For example, in selection sort, n refers to the number of elements in the array, while in TSP n refers to the number of nodes in the graph. In order to standardi...
Rails: Why does find(id) raise an exception in rails? [duplicate]
... (1, 5, 6), or an array of ids ([5, 6, 10]). If no record can be found for all of the listed ids, then RecordNotFound will be raised.
If you don't want the exception to be raised, use find_by_id, which will return nil if it can't find an object with the specified id. Your example would then be Us...
Javascript roundoff number to nearest 0.5
...
rounding the num*2 is not working for all case..try any decimal like 15.27 => using your formula will give => 15 where in fact it should have returned 15.5. **** I think using toFixed will be better (num*2).toFixed()/2
– sfdx bomb
...
Store query result in a variable using in PL/pgSQL
...s, as @Pavel commented.
I shortened the syntax with a table alias additionally.
Update: I removed my code example and suggest to use IF EXISTS() instead like provided by @Pavel.
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improve thi...
Dynamically load JS inside JS [duplicate]
...se my own implementation of it like:
jQuery.loadScript = function (url, callback) {
jQuery.ajax({
url: url,
dataType: 'script',
success: callback,
async: true
});
}
and use it like:
if (typeof someObject == 'undefined') $.loadScript('url_to_someScript.js...