Tutorial by Topics: m

Nearly all operators in R are really functions. For example, + is a function defined as function (e1, e2) .Primitive("+") where e1 is the left-hand side of the operator and e2 is the right-hand side of the operator. This means it is possible to accomplish rather counterintuitive effect...

ext An object that specifies output source and minified file extensions. source The suffix string of the filenames that output source files ends with. min When string: The suffix string of the filenames that output minified files ends with. When Array: The regex expressions to be replaced with ...

Non-Access Modifiers do not change the accessibility of variables and methods, but they do provide them special properties.

add_action( 'pre_get_posts', 'callback_function_name' ); function callback_function_name( $query ) {} // for PHP 5.3.0 or above add_action( 'pre_get_posts', function( $query ){} ); ParameterDetails$query(WP_Query) Loop object If you are using PHP 5.3.0 or above, you can use closures (an...

(Optional) Every topic has a focus. Tell the readers what they will find here and let future contributors know what belongs. ParameterDescriptionlookup_valueThe value you want to match. Can be either a fixed value, cell reference or named range. Strings may not exceed 255 characters (required)...

Function composition operator (.) is defined as (.) :: (b -> c) -> (a -> b) -> (a -> c) (.) f g x = f (g x) -- or, equivalently, (.) f g = \x -> f (g x) (.) f = \g -> \x -> f (g x) (....

Form createForm(string|FormTypeInterface $type, mixed $data = null, array $options = array()) FormBuilder createFormBuilder(mixed $data = null, array $options = array()) You can "customize" Event of the process of Form component with a Form Event compatible with Event Dispatcher...

Google Chrome supports extensions that augment the way the browser works. They can add functionality to web pages or to the browser UI.

Data.table supports column vectors belonging to R's list class. In case it looks weird that we're talking about lists without using that word in the code, note that .() is an alias for list() when used inside a DT[...] call.