API Reference > Geometry-core > CartesianGeometry > Geometry > areEqualAllowUndefined areEqualAllowUndefined MethodStatic Return true if both values are defined and equal (with ===). false if both defined by not equal return (option arg) resultIfBothUndefined when both are undefined. return false if one is defined and the other undefined areEqualAllowUndefined<T>(a: undefined | T, b: undefined | T, resultIfBothUndefined: boolean = true): boolean Parameter Type Description a undefined | T first value b undefined | T second value resultIfBothUndefined boolean return value when both are undefined. Returns - boolean Defined in Geometry.ts Line 887 Last Updated: 11 June, 2024