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changedProperties()

Returns a list of property names that have been modified on a model object but not yet saved to the database. This is useful for tracking which fields were updated, triggering specific actions based on changes, or performing conditional validation.

Name	Type	Required	Default	Description

1. Track changed properties
member = model("member").findByKey(params.memberId);
member.firstName = params.newFirstName;
member.email = params.newEmail;

// Get a list of properties that have changed
changedProperties = member.changedProperties();

2. Conditional logic based on changes
if (arrayLen(member.changedProperties()) > 0) {
    writeOutput("The following fields were changed: " & arrayToList(member.changedProperties()));
}