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WEB APP TESTING USING KNOCKOUT.JS

You're reading from   WEB APP TESTING USING KNOCKOUT.JS Design, implement, and maintain a fully tested JavaScript web application using Knockout.JS

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Product type Paperback
Published in Nov 2014
Publisher
ISBN-13 9781783982844
Length 154 pages
Edition 1st Edition
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Author (1):
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ROBERTO MESSORA ROBERTO MESSORA
Author Profile Icon ROBERTO MESSORA
ROBERTO MESSORA
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Data-binding in detail

The main objective of a web application is to present some data and eventually react to user inputs. In the previous sections, you learned that the Model-View-ViewModel strategy is to hold the data (the Model) and commands in a pure-code representation of the View called ViewModel. We also briefly scratched the surface of the data-binding mechanism that permits the connection between the ViewModel and HTML markup.

In this section, we will review the Knockout.JS built-in data-binding types. There are many ways to present information on a web page. There are plenty of elements in HTML that need a way to bind the ViewModel properties and commands.

The data-binding syntax

In Knockout.JS, we talk about declarative data-binding because we need to place the data-bind attributes inside the HTML tags, and specify what kind of binding is associated to a ViewModel property/command.

The attribute value must follow a specific syntax in order to allow Knockout.JS to decode its content...

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