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→As a front-end developer, I need to transform data coming from the server for display on the client-side. I need this transformed data to be "live". It should be updated when the original data is updated.
==== As a front-end developer, I need to transform data coming from the server for display on the client-side. I need this transformed data to be "live". It should be updated when the original data is updated. ====
''Knockout.js is a capable and flexible data-binding library. It provides for "extenders" - functions attached to an observable value which provide a hook to respond to value changes. A <code>composeWith</code> extender allows us to specify a list of functions which can progressively filter, decorate and reduce values down to a render-ready value. The function composition happens once as the observable is assigned, and is executed each time the underlying value changes. '' [[Sfoster]]
