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LINQ equivalent of foreach for IEnumerable
...uce very strange and potentially non-deterministic results.
The following test using "ForEach" extension method passes:
[Test]
public void ForEachExtensionWin()
{
//Yes, I know there is an Observable.Range.
var values = Enumerable.Range(0, 10);
var observable = Observable.Create<Fu...
Merge, update, and pull Git branches without using checkouts
... Made a quick gist to wrap up what im talking about (didn't actually test it, but should get you mostly there). gist.github.com/eddiemoya/ad4285b2d8a6bdabf432 ---- as a side note, I had most of this handy, I've got a script that checks for ff and if not lets you rebase the desired branch first...
Check if at least two out of three booleans are true
... boolean c) {
return a && (b || c) || (b && c);
}
It tests a and b exactly once, and c at most once.
References
JLS 15.25 Conditional Operator ? :
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What does && mean in void *p = &&abc;
...%p\n", startp);
return 0;
}
You could have figured it out yourself by testing:
int main(void) {
void* startp;
int a;
startp = &&a;
printf("startp=%p\n", startp);
return 0;
}
In which case GCC says:
error: label ‘a’ used but not defined
Under the hood - assembl...
How to check for an active Internet connection on iOS or macOS?
...coaPods or Carthage: https://github.com/ashleymills/Reachability.swift
2) Test reachability via closures
let reachability = Reachability()!
reachability.whenReachable = { reachability in
if reachability.connection == .wifi {
print("Reachable via WiFi")
} else {
print("Reac...
Vagrant stuck connection timeout retrying
...file and reinstall vagrant in new directory.
Make sure you are using the latest vagrant and virtualbox versions. Last resorts: Format your computer, reinstall windows and buy an intel core isomething processor.
Hope that helps.
...
How to create a self-signed certificate with OpenSSL
...ority, you have to get the DNS names right to give the certificate the greatest chance of success. But I would encourage you to become your own authority. It's easy to become your own authority, and it will sidestep all the trust issues (who better to trust than yourself?).
This is probably no...
How can I append a string to an existing field in MySQL?
...
Update image field to add full URL, ignoring null fields:
UPDATE test SET image = CONCAT('https://my-site.com/images/',image) WHERE image IS NOT NULL;
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...
Pull to refresh UITableView without UITableViewController
...to go in viewdidappear, not sure if that is an iOS 7 feature - I am yet to test it in iOS 8...
– Jack Solomon
Sep 14 '14 at 6:36
4
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Sort a single String in Java
...owed by a String constructor call:
import java.util.Arrays;
public class Test
{
public static void main(String[] args)
{
String original = "edcba";
char[] chars = original.toCharArray();
Arrays.sort(chars);
String sorted = new String(chars);
System.o...