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What does Expression.Quote() do that Expression.Constant() can’t already do?
...ld be used explicitly if you're going to use it. You're suggesting that in order to be parsimonious about not adding one extra factory method and node type amongst the several dozen already there, that we add a bizarre corner case to constants, so that constants are sometimes logically constants, an...
No 'Access-Control-Allow-Origin' - Node / Apache Port Issue
...and you don't get it automatically.
I store whitelisted domains as allowed_origins in Express configuration and put the correct domain according to origin header since Access-Control-Allow-Origin doesn't allow specifying more than one domain.
Here's what I ended up with:
var _ = require('unders...
Java 256-bit AES Password-Based Encryption
... /* Derive the key, given password and salt.
*
* in order to do 256 bit crypto, you have to muck with the files for Java's "unlimted security"
* The end user must also install them (not compiled in) so beware.
* see here: http://www.javamex.com/tutorials/cr...
Is there a goto statement in Java?
...reason to use goto that I can think of is this:
for (int i = 0; i < MAX_I; i++) {
for (int j = 0; j < MAX_J; j++) {
// do stuff
goto outsideloops; // to break out of both loops
}
}
outsideloops:
In Java you can do this like this:
loops:
for (int i = 0; i < MAX_I;...
How to use icons and symbols from “Font Awesome” on Native Android Application
...entry in strings.xml for each icon. Eg for a heart:
<string name="icon_heart">&#xf004;</string>
Referenced said entry in the view of my xml layout:
<Button
android:id="@+id/like"
style="?android:attr/buttonStyleSmall"
...
android:text="@string/icon_heart" ...
How using try catch for exception handling is best practice
...se (a library bug throwing an unrelated exception that you need to mute in order to workaround the whole bug).
For the rest of the cases:
Try to avoid exceptions.
If this isn't possible: first-chance exception handlers.
Or use a PostSharp aspect (AOP).
Answering to @thewhiteambit on some commen...
How do I tell Git to ignore everything except a subdirectory?
... Thank you a million, this worked for me! Note to others that the order of the lines here is important, you can't have !/foo/bar before /foo/* for example.
– Iamsodarncool
Jan 24 '19 at 1:08
...
How to install latest version of Node using Brew
...
Run commands below, in this order:
brew update
brew doctor
brew upgrade node
Now you have installed updated version of node, and it's probably not linked. If it's not, then just type: brew link node or brew link --overwrite node
...
How to create an empty file at the command line in Windows?
...omad mentions an original one:
C:\Users\VonC\prog\tests>aaaa > empty_file
'aaaa' is not recognized as an internal or external command, operable program or batch file.
C:\Users\VonC\prog\tests>dir
Folder C:\Users\VonC\prog\tests
27/11/2013 10:40 <REP> .
27/11/2013 10...
How to list all users in a Linux group?
...rs;
my $usertext = `getent passwd`;
my @users = $usertext =~ /^([a-zA-Z0-9_-]+):/gm;
foreach my $userid (@users)
{
my $usergrouptext = `id -Gn $userid`;
my @grouplist = split(' ',$usergrouptext);
foreach my $group (@grouplist)
{
$groupmembers{$group}->{$userid} = 1;
...