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Learning Ruby on Rails
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I've been moving from C# in my professional career to looking at Ruby and RoR in my personal life, and I've found linux to be slightly more appealing personally for development. Particularly now that I've started using git, the implementatio...
Unmangling the result of std::type_info::name
...n the attention this question / answer receives, and the valuable feedback from GManNickG, I have cleaned up the code a little bit. Two versions are given: one with C++11 features and another one with only C++98 features.
In file type.hpp
#ifndef TYPE_HPP
#define TYPE_HPP
#include <string>...
When is del useful in python?
...eleting a variable, one could just assign None to it. And when deleting from a dictionary, a del method could be added.
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How to remove part of a string? [closed]
...ntial double spaces, beginning spaces or end spaces that may have resulted from removing the unwanted string
$Example_string_COMPLETED = trim(str_replace(' ', ' ', $Example_string_PART_REMOVED));
// trim() will remove any potential leading and trailing spaces - the additional 'str_replace()' will r...
What does inverse_of do? What SQL does it generate?
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From the documentation, it seems like the :inverse_of option is a method for avoiding SQL queries, not generating them. It's a hint to ActiveRecord to use already loaded data instead of fetching it again through a relationshi...
Python read-only property
... for an attribute to be settable (such as a derived value, or a value read from some static datasource), the getter-only property is generally the preferred pattern.
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conversion from string to json object android
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To get a JSONObject or JSONArray from a String I've created this class:
public static class JSON {
public Object obj = null;
public boolean isJsonArray = false;
JSON(Object obj, boolean isJsonArray){
this.obj = obj;
th...
What is a rune?
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From the Go lang release notes: http://golang.org/doc/go1#rune
Rune is a Type. It occupies 32bit and is meant to represent a Unicode CodePoint.
As an analogy the english characters set encoded in 'ASCII' has 128 code points....
What does “Could not find or load main class” mean?
...relative pathnames in the classpath, check that they resolve correctly ... from the current directory that is in effect when you run the java command.
Check that the class (mentioned in the error message) can be located on the effective classpath.
Note that the classpath syntax is different for Wind...
Create an array with random values
How can I create an array with 40 elements, with random values from 0 to 39 ?
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