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MongoDB with redis
...fit from the flexibility of MongoDB for main persistent data, and from the extra features provided by Redis (low latency, item expiration, queues, pub/sub, atomic blocks, etc ...). It is indeed a good combination.
Please note you should never run a Redis and MongoDB server on the same machine. Mong...
convert ArrayList to JSONArray
... Collection (arrayList is a subclass of Collection) like so:
ArrayList<String> list = new ArrayList<String>();
list.add("foo");
list.add("baar");
JSONArray jsArray = new JSONArray(list);
References:
jsonarray constructor:
http://developer.android.com/reference/org/json/JSONArray.htm...
Asking the user for input until they give a valid response
... = input("Please enter your age: ")
try:
# try and convert the string input to a number
age = int(input_value)
except ValueError:
# tell the user off
print("{input} is not a number, please enter a number only".format(input=input_value))
if age >= 18:
pr...
Multiline string literal in C#
Is there an easy way to create a multiline string literal in C#?
13 Answers
13
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Which, if any, C++ compilers do tail-recursion optimization?
...t for program correctness.
#include <stdio.h>
static int atoi(const char *str, int n)
{
if (str == 0 || *str == 0)
return n;
return atoi(str+1, n*10 + *str-'0');
}
int main(int argc, char **argv)
{
for (int i = 1; i != argc; ++i)
printf("%s -> %d\n", argv[i], at...
Convert Java Array to Iterable
... +1 I do something similar to create an Iterator<Character> from a String. Implementing your own Iterator seems like the only way to avoid needlessly iterating through all of the values to convert from the object type to the primitive type (via Guava's Ints.asList() for example), just to be ...
How to get request URI without context path?
...a prefix pattern, then you can just use HttpServletRequest#getPathInfo().
String pathInfo = request.getPathInfo();
// ...
Assuming that the servlet in your example is mapped on /secure, then this will return /users which would be the information of sole interest inside a typical front controller ...
What is size_t in C?
... negative. For example, strlen() returns a size_t because the length of a string has to be at least 0.
In your example, if your loop index is going to be always greater than 0, it might make sense to use size_t, or any other unsigned data type.
When you use a size_t object, you have to make sure ...
Continuous Integration for Ruby on Rails? [closed]
...lso RSpec, Cucumber, Jasmine, Konacha integrations, and supports arbitrary extra test commands)
Integration with Rake and/or Capistrano (uses Rake to run commands and set up DBs, support continuous deployment using Capistrano or Heroku, or anything really)
A web interface showing the status of the b...
Return Boolean Value on SQL Select Statement
...
This returns a string, not a boolean
– OMG Ponies
Apr 30 '12 at 2:24
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