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When would you use a WeakHashMap or a WeakReference?
...xProvider MUTEX_PROVIDER = new IdMutexProvider();
public void performTask(String resourceId) {
IdMutexProvider.Mutex mutext = MUTEX_PROVIDER.getMutex(resourceId);
synchronized (mutext) {
// look up the resource and do something with it
}
}
IdMutextProvider provides id-based ob...
What is the maximum size of a web browser's cookie's key?
...on storage planning without implementing a complex limiter algorithm, this string is 4096 ASCII character bytes:
"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabc...
How can I change property names when serializing with Json.net?
...ng Newtonsoft.Json;
// ...
[JsonProperty(PropertyName = "FooBar")]
public string Foo { get; set; }
Documentation: Serialization Attributes
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What happens if i return before the end of using statement? Will the dispose be called?
...cked (where types differ):
using (SqlConnection conn = new SqlConnection("string"))
using (SqlCommand comm = new SqlCommand("", conn))
{
}
And also comma-delimited (where types are the same):
using (SqlCommand comm = new SqlCommand("", conn),
SqlCommand comm2 = new SqlCommand("", conn))...
What does functools.wraps do?
...ause that's the name of your new function. In fact, if you look at the docstring for f, it will be blank because with_logging has no docstring, and so the docstring you wrote won't be there anymore. Also, if you look at the pydoc result for that function, it won't be listed as taking one argument ...
vector::at vs. vector::operator[]
...y require it. (Microsoft pre-2010 was a bit of a problem here, since std::string didn't always work if the checking options didn't correspond with those of the runtime: -MD, and you'd better turn off checking, -MDd, and you'd better have it on.)
– James Kanze
...
Iterate over object keys in node.js
...d normally do {add = add.substr(0, level)} of a precreated multi-tab [add] string here, but Sublime keeps replacing with spaces, even with the ["translate_tabs_to_spaces": false] setting!!! (angry)
add += "\t";
}
for (var i = 0; i < len; i++)
{
prop = obj[keys[i]];
...
Pelican 3.3 pelican-quickstart error “ValueError: unknown locale: UTF-8”
...r people that see this issue). The real fix is to set LANG to the correct string for your locale (you can list them all with locale -a), generally using the one that ends with UTF-8.
– asmeurer
Aug 11 '16 at 17:13
...
What are the best use cases for Akka framework [closed]
... We have millions of these and the effort of the work depends on the input string type. If the transaction is of type CHECK we have very little processing but if it is a point of sale then there is lots to do such as merge with meta data (category, label, tags, etc) and provide services (email/sms a...
windows service vs scheduled task
...t method for the single-thread approach.
protected override void OnStart (string args) {
// Create worker thread; this will invoke the WorkerFunction
// when we start it.
// Since we use a separate worker thread, the main service
// thread will return quickly, telling Windows that serv...