Backbone.JS HasChanged()

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The Backbone.JS HasChanged() model is used to get the TRUE value if the attributes have changed since the last set of the model attributes.

Syntax: 

Model.HasChanged (attributes)

Parameters:
attributes: This parameter is used to specify the properties of a model.

Example: 

  

  
Example

Output: 

MESSAGE has changed = false
MESSAGE has changed = true

Explanation:
In the above example, message has changed after the set.