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Session: How to Check if Entity has Changed

To check if a specific entity differs from the one downloaded from server, the hasChanged() method from the advanced session operations can be used.


entity object Entity for which changes will be checked.
Return Value
boolean Indicates whether given entity has changed.


const employee = await session.load("employees/1-A");
let hasChanged = session.advanced.hasChanged(employee); // false
employee.lastName = "Shmoe";
hasChanged = session.advanced.hasChanged(employee);       // true