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Fully custom validation error message with Rails
... HUMANIZED_ATTRIBUTES[attr.to_sym] || super
end
end
The above code is from here
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How do I access this object property with an illegal name?
...e obvious $ret['todo-list'] accessing), this code is taken almost verbatim from Zend_Config and will convert for you.
public function toArray()
{
$array = array();
foreach ($this->_data as $key => $value) {
if ($value instanceof StdClass) {
$array[$key] = $value-&g...
How to convert integer timestamp to Python datetime
...ure how the timestamp is formatted. I've tried Python's standard datetime.fromordinal() and datetime.fromtimestamp() and a few others, but nothing matches. I'm pretty sure that particular number corresponds to the current date (e.g. 2012-3-16), but not much more.
...
Is there a performance gain in using single quotes vs double quotes in ruby?
...n. But you only get the performance hit if you actually do that.
Modified from Zetetic's example:
require 'benchmark'
n = 1000000
Benchmark.bm do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("assign double") { n.times do; c = "a string"; end}
x.report("assign int...
What is the use of the %n format specifier in C?
...
From here we see that it stores the number of characters printed so far.
n The argument shall be a pointer to an integer into which is written the number of bytes written to the output so far by this call to one of the ...
URL encode sees “&” (ampersand) as “&” HTML entity
...ing to encodeURIComponent(), which is the correct method to use, is coming from the result of accessing the innerHTML property. The solution is to get the innerText/textContent property value instead:
var str,
el = document.getElementById("myUrl");
if ("textContent" in el)
str = encodeUR...
Java or Python for Natural Language Processing [closed]
...asks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes.
...
How do you grep a file and get the next 5 lines
...
You want:
grep -A 5 '19:55' file
From man grep:
Context Line Control
-A NUM, --after-context=NUM
Print NUM lines of trailing context after matching lines.
Places a line containing a gup separator (described under --group-separator)
between contiguous g...
How to do the equivalent of pass by reference for primitives in Java
...hat
This is considered a hack, but is sometimes employed to return values from inline class invocations.
void play(int [] toyNumber){
System.out.println("Toy number in play " + toyNumber[0]);
toyNumber[0]++;
System.out.println("Toy number in play after increement " + toyNumber[0...
html tables: thead vs th
...
As far as I can tell from experience, there is no difference in rendering unless you're using CSS to specify a difference in rendering. A <td> inside of a <thead> will render the same as a <th> inside of a <table> or a <...