It is very useful for the purpose of ensuring two-way data binding mechanism between your data model and user interface. It makes sure that any changes brought in your data model are reflected in the DOM (UI). Moreover, changes brought in DOM automatically get reflected to the data model.
Just a Word About its Development:
Mr. Steve Sanderson, associated with the Microsoft, developed KnockoutJS and is maintaining it as an OSP (Open Source Project).
Why Use KnockoutJS?
Let’s make it very easy for you to understand through an easy to understand example of an e-commerce website. According to the KnockoutJS Development Service providers, if you are trying to remove any item from the shopping cart, it is not so easy. Therefore, you have to make sure it is removed from the underlying data model. It becomes important for you to remove the html element from the shopping cart and also update the total price. This is where KnockoutJS makes your life easy. However, if you are not utilizing it for this purpose, writing event handlers and listeners for dependency tracking becomes necessary.
This is where KnockoutJS proves to be the best solution for managing such a complex, data driven interfaces. You no longer have to depend on manual tracking. Instead, every single element of the HTML page that relies on the affected data. More importantly, when changes to the data model are brought, it automatically updates the DOM.
Is KnockoutJS Somewhat Similar to AngularJS?
Before getting to the point, it is really important to know that the AngularJS is for managing the entire app. It also defines guidelines for AngularJS Development Experts to be able to structure the whole app. On the other hand, in-terms of the KnockoutJS, you have the luxury of determining the entire structure of the app.
Let’s Get to the Features Now:
KnockoutJS Development Service providers’ data binding is the process of developing a connection between User Interface of the application and the business logic. You have to make sure the settings and notifications must be configured. This is how data shows every change brought in the User Interface. In simple words, whenever there is any change in the data, it is will be visible in the User Interface.
Therefore, we must take a look at the data binding process of KnockoutJS and AngularJS. In such a situation, replacement of the model properties using a ko.observable wrapper is required for performing two way data binding with KnockoutJS. Once done, you have to see the way to declare and apply bindings in HTML with the use of these two technologies.
This is the point when you AngularJS Development Companies advise you to analyze the difference between AngularJS and KnockoutJS. This is where Data Bind attribute and appropriate binding types are used for doing everything in HTML Syntax for Knockouts. In such a scenario, you will have to put a special effort for specifying all properties as observable. According to the KnockoutJS Development Service providers, Mappings have to be performed while loading JSON Data from the server for the purpose of converting properties to observables. And Mapping plugin makes it easy for you. But you have to be very responsible while using Mapping Plugin for retrieving data and also while sending the data back to the server.
Angular syntax is very easy and compact for displaying the values. It is very easy in-terms of reading and composition. As for the binding technology, AngularJS Development Companies call it the major difference. In simple words, KnockoutJS is known for binding to the model provided whereas Angular binds to the special $scope object.
Moreover, KnockoutJS does not apply bindings more than once. If you try to apply bindings more than once using KnockoutJS, you are going to get nothing more than errors. Angular has offers the luxury of nesting scopes. Such an approach is good for to make Angular Views and Controllers independent and reusable. And allows them be tested independently by the AngularJS Development Experts.
This is another similarity between the two technologies. Both AngularJS and KnockoutJS support Templating. It make sure that the code gets broken into small pieces and becomes easy to manage. This is the area where AngularJS is superior to KnockoutJS as it allows templates to get stored in external HTML files. It allows templates to get loaded automatically and fast for improvement in the organization and maintenance process of the template coding.
According to the AngularJS Development Companies, both and AngularJS and KnockoutJS provide unlimited built-in functionality. AngularJS allows the extension of HTML vocabulary of the application for ensuring extraordinarily, expressive, readable, easy to develop environment. AngularJS Development Experts, it makes use of directives for attaching a specific behavior to the elements of DOM. On the other side, writing custom bindings is the medium of implementing equivalent functionality in KnockoutJS. Both AngularJS and KnockoutJS come packed with built-in directives as well as bindings.
KnockoutJS Development Service providers make use of the observable pattern. As for reason, it is for tracking changes and notifying registered users in this regard because AngularJS is compatible with plain objects. This is why it observes variables with dirty checking technique for making sure that an expression evaluated every time is compared to current object values with previous object values.
Are you confused? Cannot decide the technology you need? Just determine your needs and get in touch with the technology consulting services firm and they will help you chose the one that caters your business needs the best.
Source: SANS ISC SecNewsFeed @ May 3, 2017 at 06:12AM