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hasChanged()

Returns true if the specified property (or any if none was passed in) has been changed but not yet saved to the database. Will also return true if the object is new and no record for it exists in the database.

Name	Type	Required	Default	Description
property	string	No		Name of property to check for change.

// Get a member object and change the `email` property on it
member = model("member").findByKey(params.memberId);
member.email = params.newEmail;

// Check if the `email` property has changed
if(member.hasChanged("email")){
    // Do something...
}

// The above can also be done using a dynamic function like this
if(member.emailHasChanged()){
    // Do something...
}