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Defining a variable with or without export
...e=value
means that the variable name is available to any process you run from that shell process. If you want a process to make use of this variable, use export, and run the process from that shell.
name=value
means the variable scope is restricted to the shell, and is not available to any othe...
TypeError: $.ajax(…) is not a function?
I'm trying to create a simple AJAX request which returns some data from a MySQL database. Here's my function below:
13 Answ...
Cache Invalidation — Is there a General Solution?
...n be modified outside of it's control.
If you have an idempotent function from a, b to c where, if a and b are the same then c is the same but the cost of checking b is high then you either:
accept that you sometime operate with out of date information and do not always check b
do your level best...
Rename a file using Java
...
Copied from http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html
// File (or directory) with old name
File file = new File("oldname");
// File (or directory) with new name
File file2 = new File("newname");
if (file2.exis...
PHP cURL not working - WAMP on Windows 7 64 bit
...led on my windows 7 64bit. cURL is not working, but still I got it enabled from the WAMP tray.
14 Answers
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UICollectionView current visible cell index
... Can you please elaborate on where self.mainImageCollection comes from? Many thanx in advance for your further detail.
– Benjamin McFerren
Jun 1 '14 at 21:57
...
MPICH vs OpenMPI
...make it the preferred implementation in nearly all cases.
Feature Support from the Latest MPI Standard
An orthogonal axis to hardware/platform support is coverage of the MPI standard. Here MPICH is usually far and away superior. MPICH has been the first implementation of every single release of ...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...portant (so it doesn't matter which order to aggregate each of the results from each of the chunks). Strictly speaking commutativity is not necessary for parallelization, for example distributed sorting algorithms, it just makes the logic easier because you don't need to give your chunks an ordering...
A better similarity ranking algorithm for variable length strings
... version of the algorithm and below I wrote a PL/Ruby version of it (taken from the plain ruby version done in the related forum entry comment by Mark Wong-VanHaren) so that I can use it in my PostgreSQL queries:
CREATE FUNCTION string_similarity(str1 varchar, str2 varchar)
RETURNS float8 AS '
str...
Comparison of CI Servers? [closed]
...
Geez. That matrix suffers from "DeathByOverload". Basic UX dictates that large grids are useless unless there's filtering. To add insult to injury, there's no download (csv) and the markdown cannot be downloaded directly. Even that resisted copying in...