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Count, size, length…too many choices in Ruby?
...,3].count{|x| x > 2 }
=> 1
In the case where you don't provide a parameter to count it has basically the same effect as calling length. There can be a performance difference though.
We can see from the source code for Array that they do almost exactly the same thing. Here is the C code fo...
What are enums and why are they useful?
...
You should always use enums when a variable (especially a method parameter) can only take one out of a small set of possible values. Examples would be things like type constants (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution").
If you use e...
How can you integrate a custom file browser/uploader with CKEditor?
...ndowHeight : 500
});
</script>
Your custom code will receive a GET parameter called CKEditorFuncNum. Save it - that's your callback function. Let's say you put it into $callback.
When someone selects a file, run this JavaScript to inform CKEditor which file was selected:
window.opener.CKED...
PHP CURL DELETE request
...ON decoded object:
/**
* @desc Do a DELETE request with cURL
*
* @param string $path path that goes after the URL fx. "/user/login"
* @param array $json If you need to send some json with your request.
* For me delete requests are always blank
* @return ...
How do I parse command line arguments in Bash?
...t argument
;;
esac
done
set -- "${POSITIONAL[@]}" # restore positional parameters
echo "FILE EXTENSION = ${EXTENSION}"
echo "SEARCH PATH = ${SEARCHPATH}"
echo "LIBRARY PATH = ${LIBPATH}"
echo "DEFAULT = ${DEFAULT}"
echo "Number files in SEARCH PATH with EXTENSION:" $(ls -1 "${SE...
How to calculate the difference between two dates using PHP?
...omponent (years, months, etc)
* That component won't be displayed.
*
* @param DateInterval $interval The interval
*
* @return string Formatted interval string.
*/
function format_interval(DateInterval $interval) {
$result = "";
if ($interval->y) { $result .= $interval->format("%y...
How to check file MIME type with javascript before upload?
...d the mime type based on the signature of the first bytes of the file
* @param {File} file A instance of File
* @param {Function} callback Callback with the result
* @author Victor www.vitim.us
* @date 2017-03-23
*/
function loadMime(file, callback) {
//List of kn...
How to secure an ASP.NET Web API [closed]
... RequestMethod = request.Method.ToString(),
QueryParameters = request.GetQueryNameValuePairs()
.ToNameValueCollection(),
};
if (request.Content != null)
{
var contentResult = request.Content.ReadAsByteArrayAsync(...
How can I dynamically create derived classes from a base class
...
This bit of code allows you to create new classes with dynamic
names and parameter names.
The parameter verification in __init__ just does not allow
unknown parameters, if you need other verifications, like
type, or that they are mandatory, just add the logic
there:
class BaseClass(object):
...
What is the difference between named and positional parameters in Dart?
Dart supports both named optional parameters and positional optional parameters. What are the differences between the two?
...