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Override ActiveRecord attribute methods
...with super as you would expect. You can find it on github.
To install:
./script/plugin install git://github.com/chriseppstein/has_overrides.git
To use:
class Post < ActiveRecord::Base
has_overrides
module Overrides
# put your getter and setter overrides in this module.
def titl...
setTimeout or setInterval?
As far as I can tell, these two pieces of javascript behave the same way:
19 Answers
1...
How to convert JSON to XML or XML to JSON?
... example you will always get "false" not false or "0" not 0) Obviously JavaScript treats these differently in certain cases.
Children elements can become nested-object {} OR nested-array [ {} {} ...] depending if there is only one or more than one XML child-element. You would consume these two diffe...
Converting between strings and ArrayBuffers
Is there a commonly accepted technique for efficiently converting JavaScript strings to ArrayBuffers and vice-versa? Specifically, I'd like to be able to write the contents of an ArrayBuffer to localStorage and to read it back.
...
How to save all the variables in the current python session?
...oblems exist while trying to do so. For example with restoring open file descriptors.
It is better to think about serialization/deserialization subsystem for your program. It is not trivial in many cases, but is far better solution in long-time perspective.
Although if I've exaggerated the problem...
Query to list number of records in each table in a database
... it is filtering out tables with a name starting with "dt"? I've seen this script all over the net, but no explanation on that criteria. Are we all being trolled?
– Skaue
May 15 '13 at 9:29
...
Checking if output of a command contains a certain string in a shell script
I'm writing a shell script, and I'm trying to check if the output of a command contains a certain string. I'm thinking I probably have to use grep, but I'm not sure how. Does anyone know?
...
Get Character value from KeyCode in JavaScript… then trim
...omCharCode expects unicode charcodes as an argument; e.keyCode returns javascript keycodes. Javascript keycodes and unicode charcodes are not the same thing! In particular, the numberpad keys return a different keycode from the ordinary number keys (since they are different keys) while the same ke...
Extracting text OpenCV
...ected as a separate block, delimited from its surroundings.
Using the same script with the same parameters (except for thresholding type that was changed for the second image like described below), here are the results for the other 2 cards:
Tuning the parameters
The parameters (threshold value, d...
How to make “if not true condition”?
...r by way of example:
In order to make sure data loggers are online a cron script runs every 15 minutes that looks like this:
#!/bin/bash
#
if ! ping -c 1 SOLAR &>/dev/null
then
echo "SUBJECT: SOLAR is not responding to ping" | ssmtp abc@def.com
echo "SOLAR is not responding to ping" | ...