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Design patterns or best practices for shell scripts [closed]
...
echo "$0: unparseable option $1"
EXCEPTION=$Main__ParameterException
EXCEPTION_MSG="unparseable option $1"
exit 1
;;
esac
done
if test "x$CommandLineOptions__config_file" == "x"
then
echo "$0: missing config_file parameter"
EX...
CSS Font Border?
...oke: http://codepen.io/pixelass/pen/gbGZYL
/// Stroke font-character
/// @param {Integer} $stroke - Stroke width
/// @param {Color} $color - Stroke color
/// @return {List} - text-shadow list
@function stroke($stroke, $color) {
$shadow: ();
$from: $stroke*-1;
@for $i from $fro...
Validate that end date is greater than start date with jQuery
...mbers
jQuery.validator.addMethod("greaterThan",
function(value, element, params) {
if (!/Invalid|NaN/.test(new Date(value))) {
return new Date(value) > new Date($(params).val());
}
return isNaN(value) && isNaN($(params).val())
|| (Number(value) > Number...
What is this 'Lambda' everyone keeps speaking of?
...ttern in there, so let's abstract it away. Let's use memoization.
/**
* @param {Array} store Data structure in which we cache lambda's return values
* @param {Function} lambda
* @return {Function} A function that caches the result of calling the lambda param
*/
var memoize = function (stor...
How to get the concrete class name as a string? [duplicate]
...c={
int:lambda x: x*2,
str:lambda s:'(*(%s)*)'%s
}
def transform (param):
print typefunc[type(param)](param)
transform (1)
>>> 2
transform ("hi")
>>> (*(hi)*)
here typefunc is a dict that maps a function for each type. transform gets that function and applies it to ...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
All the examples of strong parameters in Rails 4 docs use
2 Answers
2
...
Serializing PHP object to JSON
...return either an array, stdClass object, or some other object with visible parameters rather then private/protected ones, and do a json_encode($data->getJsonData());. In essence, implement the function from 5.4, but call it by hand.
Something like this would work, as get_object_vars() is called ...
Find the nth occurrence of substring in a string
...typedef struct {
const char *s;
size_t l;
char c;
int n;
} params;
int parse_args(PyObject *args, params *P) {
PyObject *obj;
const char *x;
if (!PyArg_ParseTuple(args, "Osi", &obj, &x, &P->n)) {
return 1;
}
PyTypeObject *type = Py_TYPE(ob...
URL rewriting with PHP
...e 'Some-text-goes-here':
ShowPicture($elements); // passes rest of parameters to internal function
break;
case 'more':
...
default:
header('HTTP/1.1 404 Not Found');
Show404Error();
}
This is how big sites and CMS-systems do it, because it allows far...
How and where are Annotations used in Java?
...methods. Asking an object for its meta-object (e.g. anObj.getClass() ) is called introspection. The introspection can go further and we can ask a meta-object what are its annotations (e.g. aClass.getAnnotations). Introspection and annotations belong to what is called reflection and meta-programming....