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How do you clear a slice in Go?
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It all depends on what is your definition of 'clear'. One of the valid ones certainly is:
slice = slice[:0]
But there's a catch. If slice elements are of type T:
var slice []T
then enforcing len(slice) to be zero, by the above "trick", doesn't make any element of
slice[:cap(slice)]
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Where is Erlang used and why? [closed]
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From Programming Erlang:
alt text http://bks8.books.google.com/books?id=Qr_WuvfTSpEC&printsec=frontcover&img=1&zoom=5&sig=ACfU3U2F4YY4KqO0vCuZ4WEZjdE2yFFvvg
Many companies are using Erlang in their production systems:
• Amazon uses Erlang to implement SimpleDB, providing data...
Google Authenticator implementation in Python
...o functions:
get_hotp_token() generates one-time token (that should invalidate after single use),
get_totp_token() generates token based on time (changed in 30-second intervals),
Parameters
When it comes to parameters:
secret is a secret value known to server (the above script) and client (Go...
Can I 'git commit' a file and ignore its content changes?
...ortion of the
index have not been modified in the working copy. So it avoids a mess
of stat calls. This bit is lost whenever the file's entry in the index
changes (so, when the file is changed upstream).
skip-worktree is more than that: even where git knows that the file
has been modifi...
Specifying and saving a figure with exact size in pixels
...e(figsize=(800/my_dpi, 800/my_dpi), dpi=my_dpi)
So you basically just divide the dimensions in inches by your DPI.
If you want to save a figure of a specific size, then it is a different matter. Screen DPIs are not so important anymore (unless you ask for a figure that won't fit in the screen). ...
__lt__ instead of __cmp__
...parison operators" such as __lt__ . The rich comparison overloads are said to be preferred, but why is this so?
5 Answer...
Validating an XML against referenced XSD in C#
...hat to your XmlReader when you create it. Then you can subscribe to the ValidationEventHandler in the settings to receive validation errors. Your code will end up looking like this:
using System.Xml;
using System.Xml.Schema;
using System.IO;
public class ValidXSD
{
public static void Main()
...
How to get current path with query string using Capybara
...ted this answer to reflect modern conventions in capybara. I think this is ideal since this is the accepted answer, and what many people are being referred to when looking for a solution. With that said, the correct way to check the current path is to use the has_current_path? matcher provided by Ca...
Javascript web app and Java server, build all in Maven or use Grunt for web app?
We are doing a web application with AngularJS and we like the idea of using Bower for Dependency Management and Grunt for building, running tests etc. ( Yeoman )
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Running a command as Administrator using PowerShell?
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if (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator"))
{
$arguments = "& '" +$myinvocation.mycommand.definition + "'"
Start-Process powershell -Verb runAs -ArgumentList $argume...