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What is the difference between 127.0.0.1 and localhost
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some applications will treat "localhost" specially. the mysql client will treat localhost as a request to connect to the local unix domain socket instead of using tcp to connect to the server on 127.0.0.1. This may be faster, an...
How to install a gem or update RubyGems if it fails with a permissions error
... have permission to write there.
That is the version of Ruby installed by Apple, for their own use. While it's OK to make minor modifications to that if you know what you're doing, because you are not sure about the permissions problem, I'd say it's not a good idea to continue along that track.
In...
How to convert a double to long without casting?
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Assuming you're happy with truncating towards zero, just cast:
double d = 1234.56;
long x = (long) d; // x = 1234
This will be faster than going via the wrapper classes - and more importantly, it's more readable. Now, if you need rounding ...
What is the fastest way to compute sin and cos together?
...e twiddling of compiler flags for this to work, but:
$ gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5488)
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY o...
xUnit : Assert two List are equal?
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But it has a very crappy output. It does not tell you WHERE two lists differ! :(
– Zordid
Sep 25 '18 at 15:05
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Does BroadcastReceiver.onReceive always run in the UI thread?
In my App, I create a custom BroadcastReceiver and register it to my Context manually via Context.registerReceiver . I also have an AsyncTask that dispatches notifier-Intents via Context.sendBroadcast . The intents are sent from a non-UI worker thread, but it seems that BroadcastReceiver.onRe...
Devise - How do I forbid certain users from signing in?
I am using Devise for authentication in my application.
4 Answers
4
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How to increase font size in the Xcode editor?
...ll show up in the 'Font' window below the 'Source Editor' window.
(If you happen to skip highlighting one of these, you will be able to get to the Font
Inspector and select new sizes, but will wonder why the changes you make are not being
applied!)
In the 'Font' window, click the small, almost hidde...
How can I force WebKit to redraw/repaint to propagate style changes?
...on another answer. The fix I ended up with was var div = $('<div>').appendTo(element); setTimeout(function(){ div.remove(); }, 0);
– bendman
Jan 8 '13 at 16:11
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Node.js or Erlang
...ompted me to take a look at node.js. It looks pretty damn good.
It does appear that you need to spawn multiple processes to take advantage of multiple cores. I can't see anything about setting processor affinity though. You could use taskset on linux, but it probably should be parametrized and ...