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How can I output leading zeros in Ruby?
...but similar formating functions are available in perl, ruby, python, java, php, etc.
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Tool for generating railroad diagram used on json.org [closed]
...t export to image or another type.
http://j-algo.binaervarianz.de/index.php
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Learning Python from Ruby; Differences and Similarities
...ifferent between the two languages. Here, the problem is that you want to allocate some resource (open a file, obtain a database cursor, etc), perform some arbitrary operation on it, and then close it in a safe manner even if an exception occurs.
In Ruby, because blocks are so easy to use (see #9)...
Should I return a Collection or a Stream?
...ually two costs here: the cost of storing values in the collection (memory allocation and copying) and also the cost of creating the values in the first place. The latter cost can often be reduced or avoided by taking advantage of a Stream's laziness-seeking behavior. A good example of this are the ...
Learn C first before learning Objective-C [closed]
...es in the end. Variables for objects use pointers, Garbage Collectors use malloc and free, files are locked using OS handles; when something goes wrong in a Java or C# application knowing these fundamentals can greatly improve your understanding of what went wrong. Understanding resource allocation ...
File system that uses tags rather than folders?
..."
another implementation, last release 2006
http://www.chipx86.com/w/index.php/Leaftag
On integration with OSes, I dont think it should be that difficult. OSes are deeply dependent on file system hierarchy's but tag based file system can mimic directory structure. For example in a tag based file sy...
Grunt watch error - Waiting…Fatal error: watch ENOSPC
...ll also persist across reboots. For more details: wiki.archlinux.org/index.php/Sysctl
– tnajdek
Sep 27 '13 at 9:20
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Should 'using' directives be inside or outside the namespace?
...ler errors. However, it is unclear which version of the Guid type is being allocated. If the using directive is moved inside of the namespace, as shown below, a compiler error will occur:
namespace Microsoft.Sample
{
using Guid = System.Guid;
public class Guid
{
public Guid(stri...
Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
...
For PHP, put this line of code before you start printing your XML:
while(ob_get_level()) ob_end_clean();
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Perform .join on value in array of objects
...ensions. You can do [x.name for x of users] (spec wiki.ecmascript.org/doku.php?id=harmony:array_comprehensions) . Worth mentioning that just like using map/reduce/filter isn't very 'pythonic' the other way probably holds in JavaScript. CoffeeScript is cool with them though coffeescript.org .
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