frontend-developer-1

Customize and Create JavaScript
HELPFUL LINKS:
• https://magento.stackexchange.com/a/89821/13
Demonstrate an understanding of the different types of knockout
observables.
Observables allow a cascading effect of functionality to happen when data changes.
Typically, when we build interfaces, we receive an input’s change event and then
process the data. While that works, observables remove us having to write the code
to link the data change to the events that transpire. As such, they are very powerful.
The basic observable is created with a call to this.price =
ko.observable(12.42). To get an observables value, it needs to be called as a
function without arguments. (e.g. this.price()).
To update the value, it needs to be called as a function with an argument (e.g.
this.price(12.99).
Any update to the value triggers any dom elements that knockout rendered with
that observable to be re-rendered.
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