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Real World Use of Zookeeper [closed]
...ning clustered services. Protocol Buffers are used to specify your service API, Netty implements transport-layer abstractions and Zookeeper is essentially a fault-tolerant discovery service.
Every time a service instance is started Norbert registers it as available instance of a particular service ...
Detect the Enter key in a text input field
...e, charCode and keyCode is deprecated developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent, please add actual information to your answer.
– Sasay
Oct 3 '19 at 17:34
...
How do I properly clean up Excel interop objects?
...ve to do is register the Excel process.
Windows Job Code
Wraps the Win32 API Calls to register Interop processes.
public enum JobObjectInfoType
{
AssociateCompletionPortInformation = 7,
BasicLimitInformation = 2,
BasicUIRestrictions = 4,
EndOfJobTimeInformation = 6,
ExtendedLi...
Releasing memory in Python
...info().rss
# collect() calls PyInt_ClearFreeList()
# or use ctypes: pythonapi.PyInt_ClearFreeList()
gc.collect()
mem3 = proc.get_memory_info().rss
pd = lambda x2, x1: 100.0 * (x2 - x1) / mem0
print "Allocation: %0.2f%%" % pd(mem1, mem0)
print "Unreference: %0.2f%%" % pd(mem2, mem1)
print "Collect:...
Get context of test project in Android junit test case
...
Update: AndroidTestCase This class was deprecated in API level 24.
Use InstrumentationRegistry instead. New tests should be written using the Android Testing Support Library. Link to announcement
You should extend from AndroidTestCase instead of TestCase.
AndroidTestCase Cla...
last day of month calculation
...
YearMonth.of(2019,7).atDay(1)
See
https://docs.oracle.com/javase/8/docs/api/java/time/YearMonth.html#atEndOfMonth--
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Importing variables from another file?
...oject structure
Where I am accessing variables from .env file where the API links and
Secret keys reside .
General Structure:
from <File-Name> import *
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Microsecond timing in JavaScript
...
As alluded to in Mark Rejhon's answer, there is an API available in modern browsers that exposes sub-millisecond resolution timing data to script: the W3C High Resolution Timer, aka window.performance.now().
now() is better than the traditional Date.getTime() in two importan...
jquery select change event get selected option
...k: since $() is an alias of jQuery(), you can find the documentation here: api.jquery.com/jQuery The signature stated there is obviously jQuery( selector [, context ] ). @Bellash: if it's "almost the same", what is the difference? Or what is faster? I prefer .find() since this is more OO IMO...
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How to check if a json key exists?
...ontains a specific key.
Example
JSONObject JsonObj = new JSONObject(Your_API_STRING); //JSONObject is an unordered collection of name/value pairs
if (JsonObj.has("address")) {
//Checking address Key Present or not
String get_address = JsonObj .getString("address"); // Present Key
}
else ...