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Oracle JET for Developers

You're reading from   Oracle JET for Developers Implement client-side JavaScript efficiently for enterprise Oracle applications

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781787284746
Length 282 pages
Edition 1st Edition
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Author (1):
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Raja Malleswara Rao Malleswara Rao Pattamsetti Raja Malleswara Rao Malleswara Rao Pattamsetti
Author Profile Icon Raja Malleswara Rao Malleswara Rao Pattamsetti
Raja Malleswara Rao Malleswara Rao Pattamsetti
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Toc

Table of Contents (11) Chapters Close

Preface 1. Getting Started with Oracle JET FREE CHAPTER 2. Oracle Alta UI 3. Tool Integration 4. Knockout JS 5. Oracle JET Components – Form Elements, Controls, and Data Collections 6. OJ Components – Layouts, Navigation, and Visualizations 7. Framework 8. Hybrid Mobile Application Development 9. Testing and Debugging 10. Security and Version Migration

Data bindings


Data bindings are attributes added by the framework for the purpose of data access between elements and view scope. While Observable arrays are efficient in accessing the list of objects with the number of operations on top of the display of the list using the foreach function, Knockout.js has provided three additional data binding abilities:

  • Control-flow bindings
  • Appearance bindings
  • Interactive bindings

Let us review these data bindings in detail in the following sections.

Control-flow bindings

As the name suggests, control-flow bindings help us access the data elements based on a certain condition. The if, if-not, and with are the control-flow bindings available from the Knockout.js.

In the following example, we will be using if and with control-flow bindings. We have added a new attribute to the Employee object called age; we are displaying the age value in green only if it is greater than 20. Similarly, we have added another markedEmployee. By this, with control-flow binding,...

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