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Change private static final field using Java reflection
...tions
Using reflection to change static final File.separatorChar for unit testing
How to limit setAccessible to only “legitimate” uses?
Has examples of messing with Integer's cache, mutating a String, etc
Caveats
Extreme care should be taken whenever you do something like this. It may not ...
Access-Control-Allow-Origin wildcard subdomains, ports and protocols
... "http(s)?://(.+\.)?(othersite\.com|mywebsite\.com)(:\d{1,5})?$" CORS=$0
Testing After deploying:
The following curl response should have the "Access-Control-Allow-Origin" header after the change.
curl -X GET -H "Origin: http://examplesite1.com" --verbose http://examplesite2.com/query
...
Reconnection of Client when server reboots in WebSocket
...Listener('close', socketCloseListener);
};
socketCloseListener();
// for testing
setTimeout(()=>{
socket.close();
},5000);
Plus https://www.npmjs.com/package/back is already good enough :)
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Best way to compare two complex objects
... a huge cost. You're generating a data stream, appending strings, and then testing string equality. Orders of magnitude, just in that. Not to mention serialization is going to be using reflection by default.
– Jerome Haltom
May 19 '17 at 15:06
...
What is more efficient? Using pow to square or just multiply it with itself?
...
I tested the performance difference between x*x*... vs pow(x,i) for small i using this code:
#include <cstdlib>
#include <cmath>
#include <boost/date_time/posix_time/posix_time.hpp>
inline boost::posix_time:...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...m the structured programming era, where early returns were also considered evil. Moving nested loops into a function trades one "evil" for another, and creates a function that has no real reason to exist (outside of "it allowed me to avoid using a goto!"). It's true that goto is the single most powe...
How to provide different Android app icons for different gradle buildTypes?
...ifest>
build.gradle
android {
...
productFlavors{
Test{
versionName "$defaultConfig.versionName" + ".test"
resValue "string", "app_name", "App-Test"
manifestPlaceholders = [
appIcon: "@mipmap/ic_launcher_test",
...
How do I break out of a loop in Scala?
...ral options.
(1a) Use some construct that includes a conditional that you test.
var sum = 0
(0 to 1000).iterator.takeWhile(_ => sum < 1000).foreach(i => sum+=i)
(warning--this depends on details of how the takeWhile test and the foreach are interleaved during evaluation, and probably sh...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...eps $PATH, you are in big trouble.
E.g. consider a tool creates a file ~/.evil/bash with the following content:
#!/bin/bash
if [ $EUID -eq 0 ]; then
echo "All your base are belong to us..."
# We are root - do whatever you want to do
fi
/bin/bash "$@"
Let's make a simple script sample.sh:
...
In Ruby, how do I skip a loop in a .each loop, similar to 'continue' [duplicate]
... n, instead of the return foo.
– ANeves thinks SE is evil
Sep 26 '13 at 12:04
1
@ANeves thanks fo...