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Is there a performance gain in using single quotes vs double quotes in ruby?
...
$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.0.0]
$ cat benchmark_quotes.rb
# As of Ruby 1.9 Benchmark must be required
require 'benchmark'
n = 1000000
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assi...
How to properly seed random number generator
... a set of distinct and deterministic random sequences).
import (
crypto_rand "crypto/rand"
"encoding/binary"
math_rand "math/rand"
)
func init() {
var b [8]byte
_, err := crypto_rand.Read(b[:])
if err != nil {
panic("cannot seed math/rand package with cryptographical...
Where does Console.WriteLine go in ASP.NET?
...
Application_Start: System.Console.SetOut(new DebugTextWriter());
– Stefan Steiger
Nov 23 '16 at 10:03
...
Server.UrlEncode vs. HttpUtility.UrlEncode
.../?#[]@!$&'()*+,;=
And the unreserved characters are alphanumeric and -._~
The Verdict
Uri.EscapeDataString clearly defines its mission: %-encode all reserved and illegal characters. WebUtility.UrlEncode is more ambiguous in both definition and implementation. Oddly, it encodes some reserved char...
Easy way to test a URL for 404 in PHP?
... you are using PHP's curl bindings, you can check the error code using curl_getinfo as such:
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
/* Get the HTML or whatever is linked in $url. */
$response = curl_exec($handle);
/* Check for 404 (file not found). */
$htt...
How to make a in Bootstrap look like a normal link in nav-tabs?
... not good (e.g. if you use "$link-decoration: underline !default;" in your _variables.scss). This should be probably noted by developers - perhaps this is not what they wanted to achieve. The link should be styled COMPLETELY as a button.
– Dmitry Somov
Apr 27 '...
UITableView Setting some cells as “unselectable”
... edited May 14 '13 at 9:22
DD_
6,5791111 gold badges3535 silver badges6060 bronze badges
answered Aug 20 '10 at 11:49
...
iOS 7 UIBarButton back button arrow color
...] setTintColor:[UIColor blackColor]];
Navigation bar contains subview of _UINavigationBarBackIndicatorView type (last item in subviews array) which represents arrow.
Result is navigation bar with different colors of back button arrow and back button title
...
How to ignore xargs commands if stdin input is empty?
... -L <#lines>, -n <#args>, -i, and -I <string>:
ls /empty_dir/ | xargs -n10 chown root # chown executed every 10 args or fewer
ls /empty_dir/ | xargs -L10 chown root # chown executed every 10 lines or fewer
ls /empty_dir/ | xargs -i cp {} {}.bak # every {} is replaced with the args...
EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
...low.
try
{
byte[] bytes = System.IO.File.ReadAllBytes(@"C:\Users\sheph_000\Desktop\Rawr.png");
Console.WriteLine(bytes);
context.BeverageTypes.AddOrUpdate(
x => x.Name,
new AATPos.DAL.Entities.BeverageType { ID = 1, Name = "Sodas" }
);
context.Beverages....