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How many socket connections can a web server handle?
....com/benchmarks/#section=data-r16&hw=ph&test=plaintext
Test date: 2018-06-06
Hardware used: Dell R440 Xeon Gold + 10 GbE
The leader has ~7M plaintext reponses per second (responses not connections)
The second one Fasthttp for golang advertises 1.5M concurrent connections - see https://githu...
best practice to generate random token for forgot password
...r
$token = bin2hex(openssl_random_pseudo_bytes(16));
1. Adi, Mon Nov 12 2018, Celeritas, "Generating an unguessable token for confirmation e-mails", Sep 20 '13 at 7:06, https://security.stackexchange.com/a/40314/
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Why does C++ require a user-provided default constructor to default-construct a const object?
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I was watching Timur Doumler's talk at Meeting C++ 2018 and I finally realised why the standard requires a user-provided constructor here, not merely a user-declared one. It has to do with the rules for value initialisation.
Consider two classes: A has a user-declared constr...
Why does the C# compiler not fault code where a static method calls an instance method?
...: Below answer was written in 2012, before the introduction of C# 7.3 (May 2018). In What's new in C# 7.3, the section Improved overload candidates, item 1, it is explained how the overload resolution rules have changed so that non-static overloads are discarded early. So the below answer (and this ...
How to declare a structure in a header that is to be used by multiple files in c?
...t C99 struct declaration, as rightfully remarked by Jonathan Leffler.
Edit 2018-06-01:
Craig Barnes reminds us in his comment that you don't need to keep separate names for the struct "tag" name and its "typedef" name, like I did above for the sake of clarity.
Indeed, the code above could well be wr...
React.js: Wrapping one component into another
...han performances, sometimes not. Choose wisely and don't bindly follow the 2018 trend of converting everything to render-props.
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How to test my servlet using JUnit
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Updated Feb 2018: OpenBrace Limited has closed down, and its ObMimic product is no longer supported.
Here's another alternative, using OpenBrace's ObMimic library of Servlet API test-doubles (disclosure: I'm its developer).
package com...
How do I change Bootstrap 3 column order on mobile layout?
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Updated 2018
For the original question based on Bootstrap 3, the solution was to use push-pull.
In Bootstrap 4 it's now possible to change the order, even when the columns are full-width stacked vertically, thanks to Bootstrap 4 fl...
Why Choose Struct Over Class?
...at https://github.com/knguyen2708/StructVsClassPerformance
UPDATE (27 Mar 2018):
As of Swift 4.0, Xcode 9.2, running Release build on iPhone 6S, iOS 11.2.6, Swift Compiler setting is -O -whole-module-optimization:
class version took 2.06 seconds
struct version took 4.17e-08 seconds (50,000,000 t...
Basic example of using .ajax() with JSONP?
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It's now 2018, and I'm not sure what is supposed to even be used in 2017!
– Vasily Hall
Jan 27 '18 at 16:51
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