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MyISAM versus InnoDB [closed]
...a table is table locked, only one query can run against it at one time. It doesn't matter if the server supports 10000 simultaneous connections, each will back up while the table is locked.
– Ryaner
Sep 5 '12 at 10:15
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Check synchronously if file/directory exists in Node.js
...ters that are
inconsistent with other Node.js callbacks. fs.existsSync() does not
use a callback.)
You've specifically asked for a synchronous check, but if you can use an asynchronous check instead (usually best with I/O), use fs.promises.access if you're using async functions or fs.access (s...
Efficient way to insert a number into a sorted array of numbers?
...Second Method:
~57 seconds
So, at least on this setup, the native method doesn't make up for it. This is true even for small data sets, inserting 100 elements into an array of 1000:
First Method:
1 milliseconds
Second Method:
34 milliseconds
...
Core dumped, but core file is not in the current directory?
...usr/share/apport/apport). This includes honouring ulimit, in which case it does nothing. But (I assume) as far as the kernel is concerned, a corefile was generated (and piped to apport), hence the message "Segmentation fault (core dumped)".
Ultimately PEBKAC for forgetting to set ulimit, but the mi...
Difference between “on-heap” and “off-heap”
...ects you allocate are managed by java's garbage collector. Although the VM does a decent job doing garbage collection, at a certain point the VM has to do a so called 'Full GC'. A full GC involves scanning the complete allocated Heap, which means GC pauses/slowdowns are proportional to an applicatio...
ASP.NET Web API OperationCanceledException when browser cancels the request
...ler checks the cancellation token but before the higher-level Web API code does the same check. But I think it will help in most cases.
David
config.MessageHandlers.Add(new CancelledTaskBugWorkaroundMessageHandler());
class CancelledTaskBugWorkaroundMessageHandler : DelegatingHandler
{
protec...
Get GPS location from the web browser
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Does this request the use of your location?
– Jack
Sep 17 '17 at 23:51
add a comment
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Get current time in milliseconds in Python?
...
@MaximVladimirsky That isn't the behavior of int(). Int does not floor a value, it rounds toward zero. Which is the same thing for positive number, but the opposite for negative. int(1.5) gives 1, int(-1.5) gives -1, math.floor(-1.5) gives -2 See: docs.python.org/2/library/st...
Calling pylab.savefig without display in ipython
...a matplotlib question, and you can get around this by using a backend that doesn't display to the user, e.g. 'Agg':
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
plt.plot([1,2,3])
plt.savefig('/tmp/test.png')
EDIT: If you don't want to lose the ability to display plots,...
How to make a class conform to a protocol in Swift?
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Type 'CellDatasDataSource' does not conform to protocol 'NSObjectProtocol'
You have to make your class inherit from NSObject to conform to the NSObjectProtocol. Vanilla Swift classes do not. But many parts of UIKit expect NSObjects.
class CustomData...