how to extend struts

$.extend (obj); to extend the jquery itself, add a new method to the class$.fn.extend (obj); Adds a method to a jquery object.such as (1): $.extend ({ add:function(b) { return +b; } }) $.add (//return Note that there is no direct call on this side of the call, without any objects in front. Direct $.+ Method Name(2): $.fn.extend (

believe that each front-end small partner to jquery are not unfamiliar with it, it is one of the greatest charm is a large number of plug-ins to help us to achieve a variety of features easier. A few nights ago, free to do nothing, on their own to write a simple jquery plug-ins, the function is very simple, just let the selected elements highlighted, but some of the ideas, it is worth learning, you can poke here to see the code. This article does not talk about how to write jquery plug-ins, w

The method or property to be extended in jquery is implemented through the Extend method. The so-called jquery plugin is also implemented through the Extend method.The jquery.extend extension is a tool method, also known as a static method. The jQuery.fn.extend extension is an instance method.When only one object is passed in, the methods and properties inside are extended to this. Like what:$.

Backbone provides a convenient extend method to create child classes. That is to say, class inheritance is implemented in JS. The source code is easy to understand and will not be listed here. I believe everyone can understand it. Model. extend = Collection. extend = Router. extend = View.

In some html, we often see the use of plug-ins: For example: $ ('# Slides'). slides ({ Preload: true, Container: 'slides _ iner ', SlidesLoaded: function (){ JQuery ('. caption'). fadeIn (800 ); } }); This is the api interface provided by a slides function. It encapsulates a js function and provides some interfaces: preload, container, slidesLoaded, In this way, you only need to input the corresponding value according to the interface instructions to run this function normally. JQuery is a hug

use the worker in the background to open a thread, specifically used to stringify this JSON, Similar to this:function (e) { var data = e.data; = json.stringify (data); false);Posmesage:Worker.postmessage (data)However, the console outputs the following error message:Uncaught datacloneerror:failed to execute ' postMessage ' in ' Worker ': An object could not being cloned.Pit Dad, this day kill why even a JSON can not copy, so, I began to look for reasons, let me find my json inside there is

[Goal] Implement a simple struts program. The program includes an input page and an output page. We are used to learning program design from the hello program. Practice has proved that this is the most effective way to get started. Next we will design our first struts Program-hello program. The goal of the hello program is to input a "hello" word from the input box on the input JSP page, and display the "h

plug-in understanding. $.extend () and $.fn.extend ()Plug-in development includes two kinds: 1. The class-level plug-in development, i.e. $.extend () extends the jquery object itself; 2. The object-level plug-in development, or $.fn.extend () extends the jquery element set to provide new methods.1. Class-level plug-in development1. (function ($) {$.extend ({Hello

CSS above, because when a variable is defined two times, the last definition takes effect. Like in CSS, a different CSS style is defined for the same element, and the last definition takes effect. Like the following.{ @var: 1; . class { @var: 2; Three: @var; @var: 3; } One : @var;}After compilation{ three: 3;} { one: 1;}Extend:The extension selector is less pseudo-class selector, he will copy the current selector, define the new style, and the original inconvenience{ :

It is important to clarify the relationship between use cases when drawing a use case diagram. The relationships of use cases include generalization, extended, and include ). Include and extend are the most confusing. Next we will thoroughly clarify the relationship between the three Based on the instance. Basic ConceptsUse case diagram: the use case diagram shows who is the relevant user, what services (Use Cases) The user wants the system to provide

Jquery.extend = JQuery.fn.extend = function () {Define some variablesif () {} See if it is a deep copy caseif () {} See the parameter is correctif () {} see if plug-in situationfor () {There may be multiple object conditionsif () {} Prevents circular references, such as $.extend (A, {name:a}); The case of circular references is excluded;if () {} deep copyelse if () {} shallow copy}}Knowledge Point carding:1, jquery is a function, jquery () returns an

Brief Introduction We often see the assign,extend,merge function in someone else's code, which is similar to the three functions that merge the properties of the source object into the target object. Since all are merging objects, why are there three different functions? What is the difference between them? assign (object, [sources]) Let's look at the definition on the official website first: Assigns own enumerable string keyed properties of source o

In the jquery API manual, we see that extend is actually two different ways to mount jquery and Jquery.fn, although within the jquery jquery.extend () and JQuery.fn.extend () are implemented with the same code, but their functionality is not quite the same. Take a look at the official API's explanation for extend: The code is as follows: Copy Code code as follows: Jquery.extend (): Merge t

some complex systems, you can also use dynaactionform to construct a dynamic form, that is, generate a form by premade parameters. In this way, you can more flexibly extend the program. ActionerrorsIs the packaging of error information. Once an exception occurs in the execution of action or form. Validate, an actionerror is generated and finally added to actionerrors. If an error occurs during form verification, the page is redirected to the input pa

jquery1.4 jquery1.4 Download The jQuery1.4 is used here, why use 1.4 because 1.4 many features are relatively easy to analyze without adding them. Extend can be said to be one of the most common functions of jQuery, with the exception of several functions of the core, almost all of which use extend for prototyping or static function expansion. Let's take a look at exte