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If two classes implement the same interface, other code which work on the interface amount, can use objects of both equally courses.
Spine.js includes a created-in JSON API. Any time a model is transformed, the improve may be communicated back again to an online server database above the JSON API. Because almost all server-facet programming languages can be Outfitted to send out and acquire JSON information, almost any server-facet language or application using a JSON API may be used to speak facts to and from the Backbone.js Net software and update the applying database accordingly.
By chaining the spy with and.callThrough, the spy will still monitor all phone calls to it but Also it is going to delegate to the actual implementation.