I just had the same problem trying to extend jquery UI plugins, and here is the solution I found (found it through jquery.ui.widget.js): (function($) { /** * Namespace: the namespace the plugin is located under * pluginName: the name of the plugin */ var extensionMethods = { /* * retrieve the id of the element … Read more
jQuery.extend is used to extend any object with additional functions, but jQuery.fn.extend is used to extend the jQuery.fn object, which in fact adds several plugin functions in one go (instead of assigning each function separately). jQuery.extend: var obj = { x: function() {} } jQuery.extend(obj, { y: function() {} }); // now obj is an … Read more
Yes, Less.js introduced extend in v1.4.0. :extend() Rather than implementing the at-rule (@extend) syntax used by SASS and Stylus, LESS implemented the pseudo-class syntax, which gives LESS’s implementation the flexibility to be applied either directly to a selector itself, or inside a statement. So both of these will work: .sidenav:extend(.nav) {…} or .sidenav { &:extend(.nav); … Read more
Inheritance is useful to reduce the amount of code you rewrite. If you have several classes with a few common methods or fields, instead of defining these methods and fields over and over you can factor them into a base class and have each of the child classes extend that base class. Interfaces (and implements) … Read more
To get the result in your code, you would do: function extend(a, b){ for(var key in b) if(b.hasOwnProperty(key)) a[key] = b[key]; return a; } Keep in mind that the way you used extend there will modify the default object. If you don’t want that, use $.extend({}, default, config) A more robust solution that mimics jQuery’s … Read more
With a wider view of what you’re actually trying to do and the context in which you’re doing it, I’m sure we could give you a better answer than the literal answer to your question. But here’s a literal answer: If you’re assigning these functions to some property somewhere, you can wrap the original function … Read more
There are several approaches : Using ActiveSupport::Concern (Preferred) Read the ActiveSupport::Concern documentation for more details. Create a file called active_record_extension.rb in the lib directory. require ‘active_support/concern’ module ActiveRecordExtension extend ActiveSupport::Concern # add your instance methods here def foo “foo” end # add your static(class) methods here class_methods do #E.g: Order.top_ten def top_ten limit(10) end end … Read more
Do you mean append? >>> x = [1,2,3] >>> y = [4,5,6] >>> x.append(y) >>> x [1, 2, 3, [4, 5, 6]] Or merge? >>> x = [1,2,3] >>> y = [4,5,6] >>> x + y [1, 2, 3, 4, 5, 6] >>> x.extend(y) >>> x [1, 2, 3, 4, 5, 6]
extend – adds the specified module’s methods and constants to the target’s metaclass (i.e. the singleton class) e.g. if you call Klazz.extend(Mod), now Klazz has Mod’s methods (as class methods) if you call obj.extend(Mod), now obj has Mod’s methods (as instance methods), but no other instance of of obj.class has those methods added. extend is … Read more
append appends a specified object at the end of the list: >>> x = [1, 2, 3] >>> x.append([4, 5]) >>> print(x) [1, 2, 3, [4, 5]] extend extends the list by appending elements from the specified iterable: >>> x = [1, 2, 3] >>> x.extend([4, 5]) >>> print(x) [1, 2, 3, 4, 5]